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5700 products

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Piston,010 103 C.I. Bore Big Twin 2007/Up Std Comp. Moly Coated
Mid-USA
$49.95
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Piston,005 103 C.I. Bore Big Twin 2007/Up Std Comp. Moly Coated
Mid-USA
$53.40
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Piston,Std 103 C.I. Bore Big Twin 2007/Up Std Comp. Moly Coated
Mid-USA
$53.40
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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
$316.15
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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
$336.35
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Kb Forged Pistons .010" Os Big Twin Evo 84/99 3.498"Std Bore,Kb920.010
Mid-USA
$297.65
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Kb Forged Pistons .005" Os Ph Sh 88/98 Ci Big Bore 3.625" Std Bore Kb929.005
Mid-USA
$263.75
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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
$301.55
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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,Wiseco 10.5:1 Std Bore Spt 88/03 1200Cc W/Pins,Locks& Rings 3.497" Bore Mfg# K1685
Mid-USA
$432.73
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Pistons,Wiseco 10:1 +.010" Os Spt883/1200Cc W/Pin,Lock,Rings 3.497"Std Bore Hi Compression
Mid-USA
$357.50
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Piston, 9:1 Std Bore Moly Sportster 88/03 1200Cc W/Wrist Pin And Clips
Mid-USA
$60.45
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Piston, 9:1 +.010" Moly Sportster 88/03 1200Cc W/Wrist Pin And Clips
Mid-USA
$60.45
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Piston, 9:1 +.030" Moly Sportster 88/03 1200Cc W/Wrist Pin And Clips
Mid-USA
$45.65
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Piston, 9.5:1 +.050" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
Mid-USA
$49.95
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Piston, 9.5:1 +.030" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
Mid-USA
$41.35
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Piston, 9.5:1 +.020" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
Mid-USA
$49.95
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Piston, 9.5:1 +.010" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
Mid-USA
$49.95
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Piston, 9.5:1 Std Bore Moly XL 72/85 1000Cc W/Wrist Pin And Clips
Mid-USA
$50.70
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Piston,Cast 9.5:1 +.040"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression
Mid-USA
$39.95
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Piston,Cast 9.5:1 +.020"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression
Mid-USA
$40.30
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Piston, 9.5:1 +.060" Cast XL 57/71 900Cc W/Wrist Pin And Clips
Mid-USA
$36.60
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Piston, 9.5:1 +.010" Cast XL 57/71 900Cc W/Wrist Pin And Clips
Mid-USA
$40.30
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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
$263.15
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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
$220.20
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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
$266.60
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

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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

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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 .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

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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 .005" Os Ph Sh 88/98 Ci Big Bore 3.625" Std Bore Kb929.005 Harley Mid-USA - K and G Cycles
Mid-USA

Kb Forged Pistons .005" Os Ph Sh 88/98 Ci Big Bore 3.625" Std Bore Kb929.005

MID-62487

$263.75

In Stock

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Kb Forged Pistons .005" Os Ph Sh 88/98 Ci Big Bore 3.625" Std Bore Kb929.005
  • 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
88ci - 98ci - 3.625
9.5:1 Compression
(4.25 - 4.75 stroke)
Fits Panhead, Shovelhead Big Bore
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

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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

$301.55

In Stock

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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

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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,Wiseco 10.5:1 Std Bore Spt 88/03 1200Cc W/Pins,Locks& Rings 3.497" Bore Mfg# K1685 Harley Mid-USA - K and G Cycles
Mid-USA

Pistons,Wiseco 10.5:1 Std Bore Spt 88/03 1200Cc W/Pins,Locks& Rings 3.497" Bore Mfg# K1685

MID-62460

$432.73

In Stock

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Pistons,Wiseco 10.5:1 Std Bore Spt 88/03 1200Cc W/Pins,Locks& Rings 3.497" Bore Mfg# K1685
All Wiseco pistons are forged from hi-silicon aluminum alloy for superior strength and dependability. The unique piston shape allows tight piston to wall clearances for quieter operation. This shape combined with a top quality ring package and computerized machined anti-detonation grooves offers you the most technically advanced piston kits available. Wiseco pistons are available with either Hastings X Style or Wiseco XC Style piston rings. All replacement ring sets include rings for one piston only. Must use 63026A when replacing piston pin lock rings in all Wiseco pistons. Hastings X Style rings are not interchangeable with Wiseco XC Style rings. All piston kits listed are designed to be used with stock stroke flywheels only. Most Wiseco pistons are machined with valve pockets that are deeper and larger than stock. These pockets provide adequate valve clearance for most high lift cams, but as with any high performance upgrade all clearances must be checked. All 883cc to 1200cc overbore and 84ci Big Bore kits do not require cylinder head modification or flywheel rebalancing unless deemed necessary by the service technician. The 84ci Big Bore kits require Big Bore cylinders and crankcases must be bored to accept the larger cylinders.Piston Kit. Evolution Sportster 1988/2003. 1200cc domed 10:5.1 compression. 3.497 standard bore. Standard.
Pistons,Wiseco 10:1 +.010" Os Spt883/1200Cc W/Pin,Lock,Rings 3.497"Std Bore Hi Compression Harley Mid-USA - K and G Cycles
Mid-USA

Pistons,Wiseco 10:1 +.010" Os Spt883/1200Cc W/Pin,Lock,Rings 3.497"Std Bore Hi Compression

MID-62458

$357.50

In Stock

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Pistons,Wiseco 10:1 +.010" Os Spt883/1200Cc W/Pin,Lock,Rings 3.497"Std Bore Hi Compression
All Wiseco pistons are forged from hi-silicon aluminum alloy for superior strength and dependability. The unique piston shape allows tight piston to wall clearances for quieter operation. This shape combined with a top quality ring package and computerized machined anti-detonation grooves offers you the most technically advanced piston kits available. Wiseco pistons are available with either Hastings X Style or Wiseco XC Style piston rings. All replacement ring sets include rings for one piston only. Must use 63026A when replacing piston pin lock rings in all Wiseco pistons. Hastings X Style rings are not interchangeable with Wiseco XC Style rings. All piston kits listed are designed to be used with stock stroke flywheels only. Most Wiseco pistons are machined with valve pockets that are deeper and larger than stock. These pockets provide adequate valve clearance for most high lift cams, but as with any high performance upgrade all clearances must be checked. All 883cc to 1200cc overbore and 84ci Big Bore kits do not require cylinder head modification or flywheel rebalancing unless deemed necessary by the service technician. The 84ci Big Bore kits require Big Bore cylinders and crankcases must be bored to accept the larger cylinders.Piston Kit. Sportster Evolution 1986/Later. 883cc & 1100cc overbore to 1200cc reverse dome, 10:1 compression, 3.497 standard bore +.010 O.S.
Piston, 9.5:1 +.050" Moly XL 72/85 1000Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.050" Moly XL 72/85 1000Cc W/Wrist Pin And Clips

MID-62440

$49.95

In Stock

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Piston, 9.5:1 +.050" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
* V-FACTOR (Moly)
61ci - 1000cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.050 OS Bore Size
Fits Ironhead Sportster 1972/1985
(Imported)
Piston, 9.5:1 +.030" Moly XL 72/85 1000Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.030" Moly XL 72/85 1000Cc W/Wrist Pin And Clips

MID-62438

$41.35

In Stock

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Piston, 9.5:1 +.030" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
* V-FACTOR (Moly)
61ci - 1000cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.030 OS Bore Size
Fits Ironhead Sportster 1972/1985
(Imported)
Piston, 9.5:1 +.020" Moly XL 72/85 1000Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.020" Moly XL 72/85 1000Cc W/Wrist Pin And Clips

MID-62437

$49.95

In Stock

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Piston, 9.5:1 +.020" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
* V-FACTOR (Moly)
61ci - 1000cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.020 OS Bore Size
Fits Ironhead Sportster 1972/1985
(Imported)
Piston, 9.5:1 +.010" Moly XL 72/85 1000Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.010" Moly XL 72/85 1000Cc W/Wrist Pin And Clips

MID-62436

$49.95

In Stock

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Piston, 9.5:1 +.010" Moly XL 72/85 1000Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
* V-FACTOR (Moly)
61ci - 1000cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.010 OS Bore Size
Fits Ironhead Sportster 1972/1985
(Imported)
Piston, 9.5:1 Std Bore Moly XL 72/85 1000Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 Std Bore Moly XL 72/85 1000Cc W/Wrist Pin And Clips

MID-62435

$50.70

In Stock

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Piston, 9.5:1 Std Bore Moly XL 72/85 1000Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
* V-FACTOR (Moly)
61ci - 1000cc STD Displacement
9.5:1 (Std. Compression) Ratio
3 3/16 STD Bore Size
Fits Ironhead Sportster 1972/1985
(Imported)
Piston,Cast 9.5:1 +.040"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression Harley Mid-USA - K and G Cycles
Mid-USA

Piston,Cast 9.5:1 +.040"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression

MID-62412

$39.95

In Stock

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Piston,Cast 9.5:1 +.040"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
V-FACTOR
54ci - 900cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.040 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)
Piston,Cast 9.5:1 +.020"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression Harley Mid-USA - K and G Cycles
Mid-USA

Piston,Cast 9.5:1 +.020"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression

MID-62410

$40.30

In Stock

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Piston,Cast 9.5:1 +.020"Os Spt 900Cc W/Pin & Lock Rings 3"Std Bore Std Compression
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
V-FACTOR
54ci - 900cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.020 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)
Piston, 9.5:1 +.060" Cast XL 57/71 900Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.060" Cast XL 57/71 900Cc W/Wrist Pin And Clips

MID-62220

$36.60

In Stock

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Piston, 9.5:1 +.060" Cast XL 57/71 900Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
V-FACTOR
54ci - 900cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.060 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)
Piston, 9.5:1 +.010" Cast XL 57/71 900Cc W/Wrist Pin And Clips Harley Mid-USA - K and G Cycles
Mid-USA

Piston, 9.5:1 +.010" Cast XL 57/71 900Cc W/Wrist Pin And Clips

MID-62217

$40.30

In Stock

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Piston, 9.5:1 +.010" Cast XL 57/71 900Cc W/Wrist Pin And Clips
  • High quality cast piston kits that meet or exceed original equipment specifications
  • Compression ratio listed with each piston
  • Sold each with piston pin and lock rings
  • Low compression pistons enable the use of pump gas without detonation
  • See the engine section for piston ring sets
  • Moly part numbers have molybdenum coated shirts to help prevent cylinder wall scuffing
  • Note: * It is not recommended to bore Sportster 1972/Early 1973 models more than .030 OS
V-FACTOR
54ci - 900cc STD Displacement
9.5:1 (Std. Compression) Ratio
+.010 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)
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

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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
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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
/
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.

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

$220.20

In Stock

Save $-220.20
/
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

$266.60

In Stock

Save $-266.60
/
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.