Best selling products

Head Gskt,Fire Ring,.043" Tk Bt Evo 84/99,Spt 1200 86/L* Fiber,Rpls 16770-84D C9537-1

• CM-20 is a perforated steel core gasket which allows heat to be drawn away from the combustion ring while dissipating heat evenly across the gasket surface
• Hot spots that lead to head gasket failure are eliminated
• CM-20's elastomer surface provides maximum sealing characteristics and sealing around passages that carry oil
• All gaskets listed are .043 thick and feature a steel fire ring at the combustion area to help prevent blown head gaskets

Cometic
Head Gasket (Each)
3 1/2 Bore Size
Fits Big Twin Evolution 1984/1999
Replaces HD# 16770-84D
Fits Sportster 1200cc 1988/Later
Replaces HD# 16773-85
Requires 60914 drain back O rings

High Performance Head Gaskets Tc 99/L* 3-7/8 Big Bore.027"Tr No Hd Rpls#..Cometic C9721-027

• 3 Piece Design
• Extreme Sealing Technology (EST) will eliminate head gasket problems
• These are the best that we have ever seen for everything from 8.5:1 compression ratio up to 15:1 plus
• Three piece design features an aluminized stainless steel center sandwiched between two NBR coated stainless spring steel outer layers
• To ensure the utmost sealing power, the outer layers are embossed at the cylinder bore and the oil drain backs provide a seal so good that O rings are not required
• Distributes heat exceptionally well from the head to the cylinder, thus eliminating hot spots that would normally cause a head gasket failure

Cometic Gasket
3 7/8 (Big Bore) bore size, .027 thickness
Fits Twin Cam 1999/Later

Piston, 9.5:1 +.050" 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
+.050 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)

Piston, 9.5:1 +.030" 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
+.030 OS Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)

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

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

Pistons,Wiseco 10.5:1 Std Bore Tc 95" 1550Cc,3.875",High Comp Inc Pins,Locks,Rings,Mfg#K1709

• Wiseco Big Bore 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
• Grooves are machined around the top ring lands to reduce detonation and improve the sealing power of the top ring
• Designed for Stock stroke flywheels only
• All wrist pin holes are ream fit for a perfect geometrical surface
• Enlarged valve pockets provide the clearance for larger valves and high lift cams but must be checked
• Includes Instructions and clearance recommendations
• All Piston Kits include Cometic brand gasket sets

Standard Bore Size, 10.5:1 compression ratio
Fits Twin Cam 1999/Later 1550cc (95ci)Note:

Hastings replacement rings are for one piston only

Pistons,Wiseco 8.5:1 +.030"Os Bt Evo 1340Cc W/Pin,Lock,Rings 3.497 Std Bore Hi Compression

• 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
• Grooves are machined around the top ring lands to reduce detonation and improve the sealing power of the top ring
• Designed for Stock stroke flywheels only
• All wrist pin holes are ream fit for a perfect geometrical surface
• Enlarged valve pockets provide the clearance for larger valves and high lift cams but must be checked
• Includes instructions and clearance recommendations

Piston Kit fits Big Twin Evolution 1984/1999 1340cc (80ci)
8.5:1 compression, 3.497 standard bore +.030 O.S.Note:

Hastings replacement rings are for one piston only unless otherwise noted by a (*)
* Includes rings for 2 pistons

Piston Rings,Wiseco X +.010"Os Spt 1000Cc One #62127 Piston See Catalog For Info 3198X

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.Hastings X Replacement Ring Set. Ironhead Sportster 1972/Later. 1000cc, 10:1 compression, 3.188 standard bore +.010 O.S.

NOTE: This is for one piston only

Pistons,Wiseco 10:1 +.020"Os Spt 1000Cc W/Pin,Locks & Rings 3.188"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. Ironhead Sportster 1972/Later. 1000cc, 10:1 compression, 3.188 standard bore +.020 O.S.

Piston, 9.5:1 Std Moly 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 (Moly)
54ci - 900cc STD Displacement
9.5:1 (Std. Compression) Ratio
3 STD Bore Size
Fits Ironhead Sportster 1957/1971
(Imported)

Viton Valve Guide Seals Spt 57/85 Int.Req.Mach.Of Vg. Pwrhouse 114" 5/16X.530 Vs802V

• The best Valve Guide Seals available!
• Made from a very elastic fluoro-viton polymer with 5% Teflon® added to help prevent excessive valve to seal friction
• A metal garter spring retains a constant valve seal to valve tension for precise oil control
• eature a bonded steel jacket providing a secure fit to the valve guide
• Internal ribs are designed to easily slip the seal on the valve guide without the use of a valve seal installation tool, but hold snug after installed
• Sold in pack of 4

POWER HOUSE
Intake Valve Guide Seal (machinine required)
5/16 Valve O.D. & .530 Guide O.D.
Fits Ironhead Sportster 1957/1985

• Good street and performance spring kits for cam/s that produce up to .675" valve lift
• Exerts 184 lbs. of seat pressure
• Tri-spring design for reduced harmonics
• Available with chrome-moly steel or titanium top collars

VThunder
Chrome-Moly Top Collar Valve Spring Kit
Fits Big Twin Evolution 1984/1999, Twin Cam 1999/2004 & Sportster 1986/2003
By: COMPETITION CAMS

Valve Spring Collars,Lower Stk Spt 57/E83 +.050"Spring Travel Rpls Hd 18220-81 ..... 99231-4

• These re-engineered stock pieces offer installation advantages and years of trouble-free service
• Manufactured from specially heat treated Chrome-moly material and black oxided

Manley
Fits Ironhead Sportster 1957/Early 1983
Adds .050 to spring travel
Replaces HD# 18220-81

Tappet Covers,Chrome Plated Twin Cam Models 1999/Later* Rpls Hd 17964-99 & 17966-99

• High quality OEM style replacement tappet covers in finishes as listed
• Sold in Sets

V-FACTOR
Chrome Plated Tappet Cover Set
Fits Twin Cam 1999/Later
Replaces HD# 17964-99 & 17966-99

Rocker Arm Shaft Shovelhead All Years Rpls Hd 17611-66B Jims
Jims
Rocker Shaft
Fits Shovelhead all years
Replaces HD# 17611-66B

Valve Spring,High Lift Set Bt Evo 84/99,Tc 99/04,Evo Spt 86/03,Up To .550 Lift, 294150

• Manufactured from the finest quality spring wire
• Wound and treated to produce the needed pressure for the high lift cams of today
• At 1.800 installed height, valve seat pressure will be approximately 160 pounds
• Can be used with OE upper valve spring collars

Andrews
Spring Set
Fits Big Twin Evolution 1984/1999, Twin Cam 1999/2004, Sportster Evolution 1986/2003

Valve, Exhaust Black Diamond Sportster 1200 Cc 1988/2003 Rpls Hd# 18024-87 P.M.20-2014
All Precision Machining, Inc. one piece stainless steel valves are impregnated by a special German Process (Nitroneg) .002 deep & .0002 surface build up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating. These valves are light and the profiles provide excellent flow characteristics and are stellite tipped. Sold each.Kibblewhite
Exhaust type Valve
Head Diameter: Std 1.475
Stem Diameter: .3095
Overall Length: Std 4.560
Fits Evolution Sportster 1987 1100cc only & Evolution Sportster 1988/2003 1200cc only
Replaces HD# 18024-87

Valve,Exhaust Os Black Diamond Shovelhead 1966/Later 1.780"Head Diameter Stock Stem
All Precision Machining, Inc. one piece stainless steel valves are impregnated by a special German Process (Nitroneg) .002 deep & .0002 surface build up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating. These valves are light and the profiles provide excellent flow characteristics and are stellite tipped. Sold each.Kibblewhite
Exhaust type Valve
Head Diameter: O.S. 1.780
Stem Diameter: .376
Overall Length: Std 3.820
Fits Shovelhead 1966/1984

Valve,Intake Black Diamond Bt Evo 84/99 & Tc 99/04 Rpl Hd 18074-83A...P.M.20-4171
All Precision Machining, Inc. one piece stainless steel valves are impregnated by a special German Process (Nitroneg) .002 deep & .0002 surface build up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating. These valves are light and the profiles provide excellent flow characteristics and are stellite tipped. Sold each.Kibblewhite
Intake type Valve
Head Diameter: Std 1.840
Stem Diameter: .3107
Overall Length: Std 4.445
Fits Big Twin Evolution 1984/Later & Twin Cam 1999/2004
Replaces HD# 18074-83A

Valve,Intake Black Diamond XLr 1970/Later 1.95" Head Od Rpl Hd 18069-65R...P.M.20-4167
All Precision Machining, Inc. one piece stainless steel valves are impregnated by a special German Process (Nitroneg) .002 deep & .0002 surface build up to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electroless nickel plating. These valves are light and the profiles provide excellent flow characteristics and are stellite tipped. Sold each.Kibblewhite
Intake type Valve
Head Diameter: Std 1.950
Stem Diameter: .309
Overall Length: Std 3.690
Fits XLR 1970/Later
Replaces HD# 18069-65R

Rocker Shaft Bushing Bt 66/L* XL 57/L* Rpls.Hd#17428-57
V-FACTOR
Rocker Arm Bushing
Fits Shovelhead 1966/1984, Big Twin Evolution 1984/1999, Twin Cam all years, Evolution Sportster all years
Replaces HD# 17428-57
(Imported)

Exhaust Stud Drill Plate Tool Bt Evo Tc88 Spt Evo All Yrs* Guides & Aligns Drill Bit.1705

• Designed to guide and keep alignment of the included ¹/₄ drill bit in order to drill out a broken exhaust stud
• ollow up the drilling process with a tap and you are ready to install a new exhaust stud
• CNC machined from billet aluminum and anodized to protect the finish
• Hardened drill bushing to prevent the drill bit from damaging the main body
• Can be used without removing the head on any stud with the proper frame clearance
• Instructions included

Jims
or all Evolution models & Twin Cam

Cam/Crank Sprocket Lock Tool Twin Cam 07/L* Dyna 06/L* Jims 994

• Due to the radical new design of the Twin Cam, specialized tools are required to properly perform engine repair without damage
• All Jims tools are manufactured from top quality material and designed for years of trouble free service
• All tools include instructions

Jims
Camshaft/Crankshaft Locking Tool
Fits Twin Cam 2007/Later & Dyna 2006/Later
Precision tool allows the technician to lock the camshaft and crankshaft sprockets to properly remove, replace and torque the sprocket bolts. Tool is made non-marring delrin
Replaces HD# 42314

Engine Tool,Socket Wrench Gear Shaft Nut Big Twin 1954/1992 Replaces Hd 94555-55A....Jims

• Fits pinion gear nut which secures pinion gear to gear shaft
• ¹/₂ drive

Jims
Fits Big Twin 1954/1992
Replaces HD# 94555-55A

Oil Screen Plug Tool Bt L52/99 (Ex Tc)Tappet Plug 7/16" Dr W/O-Ring,Slot Design

• Low profile design (¹/₂ tall) allows access to the tappet screen plug on bikes with exhaust pipe interference
• Designed with an O ring on the ⁷/₁₆ hex to hold the tool in the box end wrench on socket
• Features a flange design that allows more downward force to be applied to the tool for stubborn plugs

Motion Pro
For Big Twin Late 1952/1999 with OEM style slotted plug (except Twin Cam), (Imported)

Rocker Arm Cover Bolt Kit Spt 77/85 Allen Hd Bolts Cp Rpls Hd 4725 Colony.8790-28
Rocker arm cover bolt kits fit Ironhead Sportster 1957/1985.Allen Head Kit. Fits Ironhead Sportster 1977/Later.

Brass Pushrod Keeper Set Bt Evo 84/99,Sh 66/84,Kn 40/47 4 Hole Style

• Brass drilled pushrod keeper set adds a cool vintage look to your bike
• Made in the USA by our friends at OLD-ST Cycle

OLD-ST Cycle
Brass Pushrod Keeper Set
Fits Knucklehead 1940/1947, Shovelhead 1966/1984 & Big Twin Evolution 1984/1999

Head Gskt,Fire Ring,.043" Tk All Sh 66/84 3-5/8" Big Bore Fiber,Rpls 16770-66B C9712-1

• CM-20 is a perforated steel core gasket which allows heat to be drawn away from the combustion ring while dissipating heat evenly across the gasket surface
• Hot spots that lead to head gasket failure are eliminated
• CM-20's elastomer surface provides maximum sealing characteristics and sealing around passages that carry oil
• All gaskets listed are .043 thick and feature a steel fire ring at the combustion area to help prevent blown head gaskets

Cometic
Head Gasket (Each)
3 5/8 (Big Bore)
Fits Shovelhead 1966/1984
Replaces HD# 16770-66B