KB Forged Motorcycle Pistons

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    KB Forged Motorcycle Pistons from K and G Cycles!
    64 products

    64 products

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    Kb Forged Pistons Std Big Twin Evo 84/99 3.498" Std Bore,Kb920Std
    Mid-USA
    $297.65
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    Pistons,Kb 8.5:1 +.030"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression
    Mid-USA
    $292.30
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    KB PERFORMANCE KB Performance Forged Piston Kit, Use Lock Rings PART #0913-0001., Harley 86 - 16 XL
    KB Performance
    $311.95
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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 4", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 3.875", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
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    KB PERFORMANCE KB Performance Forged Piston Kit, size +.005", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
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    KB PERFORMANCE KB Performance Forged Piston Kit, bore 4", size +.010", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
    Sold Out
    KB PERFORMANCE KB Performance Forged Piston Kit, bore 4", size +.005", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
    Sold Out
    KB PERFORMANCE KB Performance Forged Piston Kit, bore 3.875", size +.005", Harley 07-16 FX 07-16 FL
    KB Performance
    $335.95
    Sold Out
    Kb Forged Pistons .010" Os Tc 07/L* 103Ci Moly Coated 3.875" Std Bore,Kb907C.010
    Mid-USA
    $320.25
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    Kb Forged Pistons .005" Os Tc 07/L* 103Ci Moly Coated 3.875" Std Bore,Kb907C.005
    Mid-USA
    $320.25
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    Kb Forged Pistons,Std Bore Tc 07/L* 103 Ci,Moly Coated 3.875" Std Bore,Kb907C.Std
    Mid-USA
    $320.25
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    Kb Forged Pistons .010" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.010
    Mid-USA
    $320.25
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    Kb Forged Pistons,.005" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.005
    Mid-USA
    $305.00
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    Kb Forged Pistons,Std Bore Tc 99/06 95 Ci,Moly Coated 3.875" Std Bore,Kb904Cstd
    Mid-USA
    $320.25
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    Kb Forged Pistons .010" Os Big Twin Evo 84/99 3.498"Std Bore,Kb920.010
    Mid-USA
    $297.65
    Sold Out
    Kb Forged Pistons .005" Os Ph Sh 88/98 Ci Big Bore 3.625" Std Bore Kb929.005
    Mid-USA
    $263.30
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    Kb Forged Pistons .010 Os Spt 86/08 883 To 1200 Conv Moly Coated Kb923C.010
    Mid-USA
    $297.65
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    Kb Forged Pistons,.005 Os Spt 86/08 883 To 1200 Conv Moly Coated, Kb923C.005
    Mid-USA
    $297.65
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    Kb Forged Pistons,Std Bore Spt 86/08,883 To 1200 Conv Moly Coated, Kb923C
    Mid-USA
    $297.65
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    Pistons,Kb Perf 8.9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.020
    Mid-USA
    $224.65
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    Pistons,Kb Perf 8.9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.010
    Mid-USA
    $224.65
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    Kb Pistons 8.2:1,+.040"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    Mid-USA
    $264.50
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    Kb Pistons 8.2:1,+.030"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    Mid-USA
    $264.50
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    Pistons,Kb Perf 7.5:1 +.020"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    Mid-USA
    $264.50
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    Kb Pistons,8.2:1,+.010"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    Mid-USA
    $264.50
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    Kb Pistons 8.2:1 Std Bore Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    Mid-USA
    $264.50
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    Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005
    Mid-USA
    $243.55
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    Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std
    Mid-USA
    $214.90
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    Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030
    Mid-USA
    $224.65
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    Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020
    Mid-USA
    $224.65
    Quick view
    Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010
    Mid-USA
    $224.65
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    Piston,Kb Big Bore +.020"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875" Bore 9.3:1 Comp Kb348
    Mid-USA
    $292.30
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    Piston,Kb Big Bore +.010"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875' Bore 9.3:1 Comp Kb348
    Mid-USA
    $292.30
    Kb Forged Pistons Std Big Twin Evo 84/99 3.498" Std Bore,Kb920Std Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons Std Big Twin Evo 84/99 3.498" Std Bore,Kb920Std

    MID-62489

    $297.65

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    Kb Forged Pistons Std Big Twin Evo 84/99 3.498" Std Bore,Kb920Std
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    Standard Bore Piston Set
    80ci - 1340cc - 3.498
    9.5:1 Compression
    Fits Big Twin Evolution 1984/1999
    Pistons,Kb 8.5:1 +.030"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb 8.5:1 +.030"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression

    MID-62427

    $292.30

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    Pistons,Kb 8.5:1 +.030"Os Ph Sh 88/98Ci 4.25/4.75 Stroke 3.625"Std Bore Hi Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
    • Can be fitted with a clearance as small as .00075
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
    • Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
    • Sold in sets as shown
    • Replacement ring sets availableKB Performance Pistons
      Big Bore & Stroker Piston set
      Fits Panhead & Shovelhead 88ci -98ci- 3.625
      8.5:1 Dome Top Piston (4.25 - 4.75 Stroke)
      .030 Bore
    KB PERFORMANCE KB Performance Forged Piston Kit, Use Lock Rings PART #0913-0001., Harley 86 - 16 XL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, Use Lock Rings PART #0913-0001., Harley 86 - 16 XL

    DS-09100930

    $311.95

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    KB PERFORMANCE KB Performance Forged Piston Kit, Use Lock Rings PART #0913-0001., Harley 86 - 16 XL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, Harley 07-16 FX 07-16 FL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, Harley 07-16 FX 07-16 FL

    DS-09103976

    $335.95

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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, Harley 07-16 FX 07-16 FL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 4", Harley 07-16 FX 07-16 FL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 4", Harley 07-16 FX 07-16 FL

    DS-09103973

    $335.95

    In Stock

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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 4", Harley 07-16 FX 07-16 FL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 3.875", Harley 07-16 FX 07-16 FL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 3.875", Harley 07-16 FX 07-16 FL

    DS-09103970

    $335.95

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    KB PERFORMANCE KB Performance Forged Piston Kit, Standard, bore 3.875", Harley 07-16 FX 07-16 FL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    KB PERFORMANCE KB Performance Forged Piston Kit, size +.005", Harley 07-16 FX 07-16 FL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, size +.005", Harley 07-16 FX 07-16 FL

    DS-09103977

    $335.95

    In Stock

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    KB PERFORMANCE KB Performance Forged Piston Kit, size +.005", Harley 07-16 FX 07-16 FL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    KB PERFORMANCE KB Performance Forged Piston Kit, bore 4", size +.010", Harley 07-16 FX 07-16 FL Harley KB Performance - K and G Cycles
    KB Performance

    KB PERFORMANCE KB Performance Forged Piston Kit, bore 4", size +.010", Harley 07-16 FX 07-16 FL

    DS-09103975

    $335.95

    In Stock

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    KB PERFORMANCE KB Performance Forged Piston Kit, bore 4", size +.010", Harley 07-16 FX 07-16 FL
    • Pistons forged from 4032 aluminum alloy
    • Offset pin design for quiet operation
    • Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
    • Piston pin lock rings available separately
    • Replacement rings are also available separately
    Kb Forged Pistons .005" Os Tc 07/L* 103Ci Moly Coated 3.875" Std Bore,Kb907C.005 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons .005" Os Tc 07/L* 103Ci Moly Coated 3.875" Std Bore,Kb907C.005

    MID-62496

    $320.25

    In Stock

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    Kb Forged Pistons .005" Os Tc 07/L* 103Ci Moly Coated 3.875" Std Bore,Kb907C.005
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    .005 O.S. Bore Piston Set
    103ci - 3.875
    9.5:1 Compression
    Moly Coated Skirts
    Fits Twin Cam 96 2007/Later Big Bore to 103ci
    Kb Forged Pistons,Std Bore Tc 07/L* 103 Ci,Moly Coated 3.875" Std Bore,Kb907C.Std Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons,Std Bore Tc 07/L* 103 Ci,Moly Coated 3.875" Std Bore,Kb907C.Std

    MID-62495

    $320.25

    In Stock

    Save $-320.25
    /
    Shipping calculated at checkout.
    Kb Forged Pistons,Std Bore Tc 07/L* 103 Ci,Moly Coated 3.875" Std Bore,Kb907C.Std
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    Standard Bore Piston Set
    103ci - 3.875
    9.5:1 Compression
    Moly Coated Skirts
    Fits Twin Cam 96 2007/Later Big Bore to 103ci
    Kb Forged Pistons .010" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.010 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons .010" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.010

    MID-62494

    $320.25

    In Stock

    Save $-320.25
    /
    Shipping calculated at checkout.
    Kb Forged Pistons .010" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.010
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    .010 O.S. Bore Piston Set
    95ci - 3.875
    9.25:1 Compression
    Moly Coated Skirts
    Fits Twin Cam 88 1999/2006 Big Bore to 95ci
    Kb Forged Pistons,.005" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.005 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons,.005" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.005

    MID-62493

    $305.00

    In Stock

    Save $-305.00
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    Shipping calculated at checkout.
    Kb Forged Pistons,.005" Os Tc 99/06 95 Ci Moly Coated 3.875"Std Bore,Kb904C.005
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    .005 O.S. Bore Piston Set
    95ci - 3.875
    9.25:1 Compression
    Moly Coated Skirts
    Fits Twin Cam 88 1999/2006 Big Bore to 95ci
    Kb Forged Pistons,Std Bore Tc 99/06 95 Ci,Moly Coated 3.875" Std Bore,Kb904Cstd Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons,Std Bore Tc 99/06 95 Ci,Moly Coated 3.875" Std Bore,Kb904Cstd

    MID-62492

    $320.25

    In Stock

    Save $-320.25
    /
    Shipping calculated at checkout.
    Kb Forged Pistons,Std Bore Tc 99/06 95 Ci,Moly Coated 3.875" Std Bore,Kb904Cstd
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    Standard Bore Piston Set
    95ci - 3.875
    9.25:1 Compression
    Moly Coated Skirts
    Fits Twin Cam 88 1999/2006 Big Bore to 95ci
    Kb Forged Pistons .010" Os Big Twin Evo 84/99 3.498"Std Bore,Kb920.010 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons .010" Os Big Twin Evo 84/99 3.498"Std Bore,Kb920.010

    MID-62491

    $297.65

    In Stock

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    Shipping calculated at checkout.
    Kb Forged Pistons .010" Os Big Twin Evo 84/99 3.498"Std Bore,Kb920.010
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    .010 O.S. Bore Piston Set
    80ci - 1340cc - 3.498
    9.5:1 Compression
    Fits Big Twin Evolution 1984/1999
    Kb Forged Pistons .010 Os Spt 86/08 883 To 1200 Conv Moly Coated Kb923C.010 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons .010 Os Spt 86/08 883 To 1200 Conv Moly Coated Kb923C.010

    MID-62485

    $297.65

    In Stock

    Save $-297.65
    /
    Shipping calculated at checkout.
    Kb Forged Pistons .010 Os Spt 86/08 883 To 1200 Conv Moly Coated Kb923C.010
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    +.010 O.S. Bore Piston Set
    74ci - 1200cc - 3.498
    9.5:1 Compression
    Moly Coated Skirts
    Fits Sportster 1986/2008, 883 to 1200 Conversion
    Kb Forged Pistons,.005 Os Spt 86/08 883 To 1200 Conv Moly Coated, Kb923C.005 Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons,.005 Os Spt 86/08 883 To 1200 Conv Moly Coated, Kb923C.005

    MID-62484

    $297.65

    In Stock

    Save $-297.65
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    Shipping calculated at checkout.
    Kb Forged Pistons,.005 Os Spt 86/08 883 To 1200 Conv Moly Coated, Kb923C.005
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    +.005 O.S. Bore Piston Set
    74ci - 1200cc - 3.498
    9.5:1 Compression
    Moly Coated Skirts
    Fits Sportster 1986/2008, 883 to 1200 Conversion
    Kb Forged Pistons,Std Bore Spt 86/08,883 To 1200 Conv Moly Coated, Kb923C Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Forged Pistons,Std Bore Spt 86/08,883 To 1200 Conv Moly Coated, Kb923C

    MID-62483

    $297.65

    In Stock

    Save $-297.65
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    Shipping calculated at checkout.
    Kb Forged Pistons,Std Bore Spt 86/08,883 To 1200 Conv Moly Coated, Kb923C
    • orged 4032 alloy is an 11% silicon alloy that is formed in a forging press then fully machined
    • This process offers you the strongest piston available for your engine
    • The forged pistons are suited for street or race and are economically priced
    • All pistons come with offset wrist pin holes to help keep your engine running quieter
    • Sold in sets with rings, pins and spiral locks
    KB Performance Pistons
    Standard Bore Piston Set
    74ci - 1200cc - 3.498
    9.5:1 Compression
    Moly Coated Skirts
    Fits Sportster 1986/2008, 883 to 1200 Conversion
    Pistons,Kb Perf 8.9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.020 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 8.9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.020

    MID-62432

    $224.65

    In Stock

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    Shipping calculated at checkout.
    Pistons,Kb Perf 8.9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.020
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1988/2003 1200cc (74ci)
      Standard bore =3.498
      8.9:1 compression ratio
      lat Top Pistons with valve pockets cut .060 deeper for use with shaved heads & high lift cams
      +.020 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 8.9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.010 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 8.9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.010

    MID-62431

    $224.65

    In Stock

    Save $-224.65
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 8.9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb295.010
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1988/2003 1200cc (74ci)
      Standard bore =3.498
      8.9:1 compression ratio
      lat Top Pistons with valve pockets cut .060 deeper for use with shaved heads & high lift cams
      +.010 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Kb Pistons 8.2:1,+.040"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Pistons 8.2:1,+.040"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression

    MID-62407

    $264.50

    In Stock

    Save $-264.50
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    Shipping calculated at checkout.
    Kb Pistons 8.2:1,+.040"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Ironhead Sportster 1972/1985 1000cc (61ci)
      Standard bore =3.188
      8.2:1 compression ratio Dome Top Piston
      +.040 Bore
      Note: It is not recommended to bore 1972/Early 1973 models more than +.030 Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Kb Pistons 8.2:1,+.030"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Pistons 8.2:1,+.030"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression

    MID-62406

    $264.50

    In Stock

    Save $-264.50
    /
    Shipping calculated at checkout.
    Kb Pistons 8.2:1,+.030"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Ironhead Sportster 1972/1985 1000cc (61ci)
      Standard bore =3.188
      8.2:1 compression ratio Dome Top Piston
      +.030 Bore
      Note: It is not recommended to bore 1972/Early 1973 models more than +.030 Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 7.5:1 +.020"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 7.5:1 +.020"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression

    MID-62405

    $264.50

    In Stock

    Save $-264.50
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 7.5:1 +.020"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Ironhead Sportster 1972/1985 1000cc (61ci)
      Standard bore =3.188
      8.2:1 compression ratio Dome Top Piston
      +.020 Bore
      Note: It is not recommended to bore 1972/Early 1973 models more than +.030 Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Kb Pistons,8.2:1,+.010"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Pistons,8.2:1,+.010"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression

    MID-62404

    $264.50

    In Stock

    Save $-264.50
    /
    Shipping calculated at checkout.
    Kb Pistons,8.2:1,+.010"Os Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Ironhead Sportster 1972/1985 1000cc (61ci)
      Standard bore =3.188
      8.2:1 compression ratio Dome Top Piston
      +.010 Bore
      Note: It is not recommended to bore 1972/Early 1973 models more than +.030 Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Kb Pistons 8.2:1 Std Bore Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression Harley Mid-USA - K and G Cycles
    Mid-USA

    Kb Pistons 8.2:1 Std Bore Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression

    MID-62402

    $264.50

    In Stock

    Save $-264.50
    /
    Shipping calculated at checkout.
    Kb Pistons 8.2:1 Std Bore Spt 1000Cc W/Pins,Locks,Rings 3.188"Std Bore Low Compression
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Ironhead Sportster 1972/1985 1000cc (61ci)
      Standard bore =3.188
      8.2:1 compression ratio Dome Top Piston
      Standard Bore
      Note: It is not recommended to bore 1972/Early 1973 models more than +.030 Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005

    MID-62291

    $243.55

    In Stock

    Save $-243.55
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    Shipping calculated at checkout.
    Pistons,Kb Perf 10:1 +.005"Os Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings #Kb272.005
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1986/Later 1200cc (74ci)
      Standard bore =3.498
      10:1 compression ratio
      Dish Top Pistons that do not require head modification
      +.005 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std

    MID-62290

    $214.90

    In Stock

    Save $-214.90
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 10:1 Std Bore Spt 86/L* Converts 883 To 1200 W/Pins,Locks,Rings # Kb272Std
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1986/Later 1200cc (74ci)
      Standard bore =3.498
      10:1 compression ratio
      Dish Top Pistons that do not require head modification
      Standard BoreNote: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030

    MID-62276

    $224.65

    In Stock

    Save $-224.65
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 9:1 +.030"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.030
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1988/2003 1200cc (74ci)
      Standard bore =3.498
      9:1 compression ratio lat Top Piston
      +.030 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020

    MID-62275

    $224.65

    In Stock

    Save $-224.65
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 9:1 +.020"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.020
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1988/2003 1200cc (74ci)
      Standard bore =3.498
      9:1 compression ratio lat Top Piston
      +.020 Bore Note: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010 Harley Mid-USA - K and G Cycles
    Mid-USA

    Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010

    MID-62274

    $224.65

    In Stock

    Save $-224.65
    /
    Shipping calculated at checkout.
    Pistons,Kb Perf 9:1 +.010"Os Spt 88/03 1200Cc W/Pins,Locks, Rings #Kb264.010
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight, permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy composition keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself production a cooler running piston
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability, and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the tip and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings moly rings
    • Order 65199 for replacement wrist pin lock (sold each)
    • Wrist pins measure .792 O.D.
    • Replacement rings are availableKB Performance Pistons
      Fits Evolution Sportster 1988/2003 1200cc (74ci)
      Standard bore =3.498
      9:1 compression ratio lat Top Piston
      +.010 BoreNote: It is not recommended to bore Sportster 1972/Early 1973 1000cc models more than .030 oversize. These are easily identified by their 6 point head bolts.

    Piston,Kb Big Bore +.020"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875" Bore 9.3:1 Comp Kb348 Harley Mid-USA - K and G Cycles
    Mid-USA

    Piston,Kb Big Bore +.020"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875" Bore 9.3:1 Comp Kb348

    MID-62482

    $292.30

    In Stock

    Save $-292.30
    /
    Shipping calculated at checkout.
    Piston,Kb Big Bore +.020"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875" Bore 9.3:1 Comp Kb348
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
    • Can be fitted with a clearance as small as .00075
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
    • Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
    • Sold in sets as shown
    • Replacement ring sets availableKB Performance Pistons
      Standard Bore & Stroke Piston set
      Fits Twin Cam 95ci - 3.875
      9.3:1 lat Top Piston (4.0 Stroke)
      +.020 Bore
    Piston,Kb Big Bore +.010"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875' Bore 9.3:1 Comp Kb348 Harley Mid-USA - K and G Cycles
    Mid-USA

    Piston,Kb Big Bore +.010"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875' Bore 9.3:1 Comp Kb348

    MID-62481

    $292.30

    In Stock

    Save $-292.30
    /
    Shipping calculated at checkout.
    Piston,Kb Big Bore +.010"Os Tc88 99/L* 95"Cid,4.0"Stroke & 3.875' Bore 9.3:1 Comp Kb348
    • Spawned from this successful manufacturer's line of automotive pistons
    • Lightweight permanent mold cast pistons
    • Manufactured from Hypereutectic 390 Alloy, contain 16-18% silicon, and heat treated to T6 specifications producing a stronger than stock piston
    • Special alloy compositon keeps heat confined to the combustion chamber and reduces heat transfer to the piston Fitself producing a cooler running piston
    • Can be fitted with a clearance as small as .00075
    • Piston expansion is reduced by as much as 20% over conventional pistons
    • Less piston rock, better ring support, more durability and better retained compression for maximum power
    • The key feature to these pistons is the accumulator groove between the top and second ring which averages the normal pressure between the first and second ring, keeping the pressure low enough to prevent lifting of the top ring while maintaining preload on the second (oil scraping) ring
    • Each set of pistons includes wrist pins, spiral locks, engine assembly lube, and Hastings Moly rings
    • Wrist pins measure .792 O.D. on single cam models and .927 on Twin cam models
    • Sold in sets as shown
    • Replacement ring sets availableKB Performance Pistons
      Standard Bore & Stroke Piston set
      Fits Twin Cam 95ci - 3.875
      9.3:1 lat Top Piston (4.0 Stroke)
      +.010 Bore