Engine
8284 parts
Harley engine parts for Evo, Twin Cam, Milwaukee-Eight and Sportster motors. Jump to cams, big bore kits, heads, gaskets and seals or engine covers. Free US shipping over $100.
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Out of stock
Alloy Art - CRA-3 - Compression Release Adapter - 12 mm x 3/4"
Alloy Art
$20.95Alloy Art - CRA-3 - Compression Release Adapter - 12 mm x 3/4"FeaturesDesigned to be used in twin plug headsAccept .650”/10mm x 1.0 compression release valvesSold eachMade in the U.S.A.Specs$20.95 -
Out of stock
Wiseco - S534 - Wrist Pin
Wiseco
$25.95Wiseco - S534 - Wrist PinFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high temperaturesSpecs$25.95 -
Out of stock
Wiseco - K1700 - Piston Kit - Standard - S1 Buell 1200 cc
Wiseco
$409.95Wiseco - K1700 - Piston Kit - Standard - S1 Buell 1200 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and chrome...$409.95 -
Out of stock
Wiseco - K1687 - Piston Kit - +0.020" - XL 1200
Wiseco
$447.95Wiseco - K1687 - Piston Kit - +0.020" - XL 1200FeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and chrome piston...$447.95 -
Out of stock
Wiseco - K1669 - Piston Kit - +0.040" - Evolution Big Twin 1340 cc
Wiseco
$409.95Wiseco - K1669 - Piston Kit - +0.040" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$409.95 -
Out of stock
Tp Engineering - 45-0245-23 - Pro Series Rocker Arms
Tp Engineering
$732.95Tp Engineering - 45-0245-23 - Pro Series Rocker ArmsFeaturesPremium rocker arms are forged from 4140 steel and CNC-machined for a perfect fitFeature a roller tip for less drag and a solid bushing for...$732.95 -
Out of stock
Tp Engineering - 45-0151-12 - Oil Pump Big Twin
Tp Engineering
$524.95Tp Engineering - 45-0151-12 - Oil Pump Big TwinFeaturesConstructed of high-quality billet aluminum with a polished finishUnique three-valve system delivers 8-10 lb. of oil pressure to the crankshaft...$524.95 -
Out of stock
Tp Engineering - 45-0150-12 - Oil Pump Big Twin
Tp Engineering
$524.95Tp Engineering - 45-0150-12 - Oil Pump Big TwinFeaturesConstructed of high-quality billet aluminum with a polished finishUnique three-valve system delivers 8-10 lb. of oil pressure to the crankshaft...$524.95 -
Out of stock
S&S Cycle - 92-1201 - Piston Kit - For 95" Big Bore Kit - 3.875" - +0.010"
S&S Cycle
$530.95S&S Cycle - 92-1201 - Piston Kit - For 95" Big Bore Kit - 3.875" - +0.010"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in...$530.95 -
Out of stock
S&S Cycle - 33-5175 - Cam Install Kit - Chain Drive
S&S Cycle
$164.95S&S Cycle - 33-5175 - Cam Install Kit - Chain Drive Features Kits include all required parts needed when servicing or changing gear- or chain-drive cams in a Twin Cam motor Made in the U.S.A...$164.95 -
Out of stock
S&S Cycle - 33-5080 - 631 Cam - Evolution
S&S Cycle
MSRP: $299.95$249.95S&S Cycle - 33-5080 - 631 Cam - EvolutionFeaturesS&S Cams are tested on the dyno, street and track before being offered to the publicWith hundreds of hours of testing on each cam, you know you are...MSRP: $299.95$249.95 -
Out of stock
S&S Cycle - 33-4146 - Pinion Gear
S&S Cycle
$112.95S&S Cycle - 33-4146 - Pinion GearFeaturesHigh-quality pinion gears are carefully machined, heat-treated and then finish groundMade in the U.S.A.Specs$112.95 -
Out of stock
S&S Cycle - 34-7800 - Connecting Rod Assembly - XL
S&S Cycle
MSRP: $1,199.95$995.95S&S Cycle - 34-7800 - Connecting Rod Assembly - XLFeaturesHigh-quality, heavy duty rod sets come complete and ready to installSet includes front and rear rods, crankpin and nuts, steel cages and...MSRP: $1,199.95$995.95 -
Out of stock
S&S Cycle - 33-4232 - Oil Pump Drive Gear
S&S Cycle
$69.95S&S Cycle - 33-4232 - Oil Pump Drive Gear Features Must be used as a set or with OEM equivalents Made in the U.S.A. Specs$69.95 -
Out of stock
S&S Cycle - 94-1302X - Replacement Piston Rings - 4.000" - +0.020"
S&S Cycle
$65.95S&S Cycle - 94-1302X - Replacement Piston Rings - 4.000" - +0.020"FeaturesReplacement ring sets for S&S pistons onlyRings come as sets for two pistonsMade in the USASpecs$65.95 -
Out of stock
S&S Cycle - 31-2067 - Lower End Gasket Kit - Super Stock - EVO Big Twin
S&S Cycle
$52.95S&S Cycle - 31-2067 - Lower End Gasket Kit - Super Stock - EVO Big TwinFeaturesContain the best quality gaskets availableMade in the U.S.A.Specs$52.95 -
Out of stock
S&S Cycle - 31-2066 - Lower End Gasket Kit - Super Stock - Big Twin
S&S Cycle
$71.95S&S Cycle - 31-2066 - Lower End Gasket Kit - Super Stock - Big TwinFeaturesContain the best quality gaskets availableMade in the U.S.A.Specs$71.95 -
Out of stock
S&S Cycle - 106-5428 - Billet Tappet Guides - Chrome - Big Twin
S&S Cycle
$504.95S&S Cycle - 106-5428 - Billet Tappet Guides - Chrome - Big TwinFeaturesMachined from solid billet aluminum with chrome finishPart of S&S's top-of-the-line engine kitsAvailable for engines with...$504.95 -
Out of stock
Revolution Performance, Llc - RP10193HB027014 - Gasket Kit - 139"/143" - M8
Revolution Performance
$89.95Revolution Performance, Llc - RP10193HB027014 - Gasket Kit - 139"/143" - M8Featuresrevolution performance logoMade in the U.S.A.revolution performance logoSpecs$89.95 -
Out of stock
S&S Cycle - 310-0911 - Cam Cover Gasket - M8
S&S Cycle
$21.95S&S Cycle - 310-0911 - Cam Cover Gasket - M8FeaturesCam cover gasket for M8Replacement Part for OEM Number(s): 25700370Specs$21.95 -
Out of stock
S&S Cycle - 50-7015-12 - Top Rubber Washer
S&S Cycle
$15.95S&S Cycle - 50-7015-12 - Top Rubber WasherFeaturesReplacement rocker box screw sealing washers.SpecsMaterial$15.95 -
Out of stock
Rocker Lockers - DK-RL-SPT-8606 - Rocker Lockers - XL
Rocker Lockers
$24.95Rocker Lockers - DK-RL-SPT-8606 - Rocker Lockers - XLFeaturesCenters the rocker plate eliminating different wear patterns on the rocker arm valveTapered design so that they lock themselves in and...$24.95 -
Out of stock
Revolution Performance, Llc - RP201-171WG - Cylinder Kit - 117" - Granite with Highlighted Fins - Twin Cam
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-171WG - Cylinder Kit - 117" - Granite with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-171W - Cylinder Kit - 117" - Black with Highlighted Fins - Twin Cam
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-171W - Cylinder Kit - 117" - Black with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-608W - Cylinder Kit - 128" - Big Bore - Black - 114"/117" M8
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-608W - Cylinder Kit - 128" - Big Bore - Black - 114"/117" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-111W - Cylinder Kit - 98" - Big Bore - Black with Highlighted Fins - Twin Cam
Revolution Performance
$1,479.95Revolution Performance, Llc - RP201-111W - Cylinder Kit - 98" - Big Bore - Black with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,479.95 -
Out of stock
S&S Cycle - 93-5095 - Adjustable Pushrod Cover Kit - Twin Cam
S&S Cycle
$249.95S&S Cycle - 93-5095 - Adjustable Pushrod Cover Kit - Twin CamFeaturesKit includes four S&S adjustable pushrods, four pushrod covers and O-ringsPushrods are manufactured from chromoly steel for...$249.95 -
Out of stock
S&S Cycle - 900-4119RA - Forged Standard Rocker Arm
S&S Cycle
MSRP: $122.95$84.95S&S Cycle - 900-4119RA - Forged Standard Rocker ArmFeaturesAn economical solution for stock rebuilds, and mild performance upgradesForged from 8620 steel for greater strength than stock or cast...MSRP: $122.95$84.95 -
Out of stock
S&S Cycle - 90-4006 - Rocker Arm Shaft - Twin Cam/XL
S&S Cycle
$16.95S&S Cycle - 90-4006 - Rocker Arm Shaft - Twin Cam/XLFeaturesMade in the U.S.A.SpecsRiding StyleStreet$16.95 -
Out of stock
S&S Cycle - 310-1272 - Cam Chest Kit without Cams - Chain Drive - Black Pushrods - Twin Cam
S&S Cycle
$1,522.95S&S Cycle - 310-1272 - Cam Chest Kit without Cams - Chain Drive - Black Pushrods - Twin CamFeaturesOil Pump/Cam Plate:Precision machined from billet aluminumPassage plugs are removable for...$1,522.95 -
Out of stock
S&S Cycle - 310-1271 - Cam Chest Kit without Cams - Chain Drive - Chrome Pushrods - Twin Cam
S&S Cycle
$1,522.95S&S Cycle - 310-1271 - Cam Chest Kit without Cams - Chain Drive - Chrome Pushrods - Twin CamFeaturesOil Pump/Cam Plate:Precision machined from billet aluminumPassage plugs are removable for...$1,522.95 -
Out of stock
S&S Cycle - 310-1270 - Cam Chest Kit without Cams - Chain Drive - Black Pushrods - Twin Cam
S&S Cycle
$1,522.95S&S Cycle - 310-1270 - Cam Chest Kit without Cams - Chain Drive - Black Pushrods - Twin CamFeaturesOil Pump/Cam Plate:Precision machined from billet aluminumPassage plugs are removable for...$1,522.95 -
Out of stock
S&S Cycle - 330-0715 - Camshaft Kit - 540G Gear Drive - M8
S&S Cycle
$465.95S&S Cycle - 330-0715 - Camshaft Kit - 540G Gear Drive - M8 Features Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm when combined with 124" and...$465.95 -
Out of stock
S&S Cycle - 320-0397 - Flywheel Assembly - Twin Cam
S&S Cycle
$1,794.95S&S Cycle - 320-0397 - Flywheel Assembly - Twin CamFeaturesS&S 3-piece flywheels with integral main shafts are the strongest yet, made from 4140 steel and feature a larger 1.671" crankpinFlywheel...$1,794.95 -
Out of stock
S&S Cycle - 310-1326 - Crankcase - MK-Series "B" - Black - M8 Softail
S&S Cycle
$2,849.95S&S Cycle - 310-1326 - Crankcase - MK-Series "B" - Black - M8 SoftailFeaturesStock deck heightLarge volume sumpMachined, close-fitting oil scraper (stock is as cast)A solid foundation for building a...$2,849.95 -
Out of stock
S&S Cycle - 920-0115 - High Compression Piston Kit - +0.010" - 110" Twin Cam CVO Motor
S&S Cycle
MSRP: $587.95$521.95S&S Cycle - 920-0115 - High Compression Piston Kit - +0.010" - 110" Twin Cam CVO MotorFeaturesDeck height is 1.0985"Wristpin diameter is .927"Piston features a 12.5cc raised dome to achieve a...MSRP: $587.95$521.95 -
Out of stock
S&S Cycle - 31-6510 - Oil Filter Mounting Bracket Kit - Polished
S&S Cycle
MSRP: $239.95$195.95S&S Cycle - 31-6510 - Oil Filter Mounting Bracket Kit - PolishedFeaturesNo voids or other casting defects in the material to cause leaksPosition of the filter has been shifted slightly to give...MSRP: $239.95$195.95 -
Out of stock
Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XL
Kibblewhite
$37.55Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XLFeaturesOne-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002" depth and .0002"...$37.55 -
Out of stock
Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big Bore
KB Performance
$307.95Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter...$307.95 -
Out of stock
Kb Performance - KB348.STD - Piston Kit - 3.875" Standard - 9.3:1 CR - 95" Twin Cam Big Bore
KB Performance
$295.95Kb Performance - KB348.STD - Piston Kit - 3.875" Standard - 9.3:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter...$295.95
About Engine
Harley Engine Parts for Rebuilds and Performance
From a fresh gasket set to a full big bore build, we stock the Harley engine parts you need to rebuild, maintain or wake up your motor. Match parts to your engine: Evo, Twin Cam, Milwaukee-Eight and Sportster parts don't swap across.
Shop Engine Parts
- Camshafts
- Big bore kits
- Cylinders
- Heads
- Pushrods
- Lifters
- Rockers
- Gaskets & seals
- Oil pumps
- Oil filters
- Motor mounts
- Engine covers
We carry engine parts from S&S Cycle, Drag Specialties, V-Twin Mfg, Alloy Art, HardDrive and Rocker Lockers. Pair your build with an air cleaner and exhaust that let it breathe.
Not Sure It Fits?
Year, model and engine all matter, and plenty of parts look the same but aren't. If you can't tell whether something fits your bike, hit us up with your year and model and we'll check it before you order.