Engine
8832 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
Ultracool - SMSP-1C - Side Mount Oil Cooler Kit - Chrome - Sportster
Ultracool
$549.99Ultracool - SMSP-1C - Side Mount Oil Cooler Kit - Chrome - SportsterFeaturesOil adapter and thermal switch with waterproof connectors automatically turns on the powerful dual fans when oil reaches...$549.99 -
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 - 33-5080 - 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 - 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 - 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 - 33-5180 - Camshaft Kit - 625G - Gear Drive - Twin Cam
S&S Cycle
$948.95S&S Cycle - 33-5180 - Camshaft Kit - 625G - Gear Drive - Twin Cam Features For 95/96/103 and 110 cubic inch engines with compression ratios from 10.0 to 10.75:1 Strongest from 3000-6000...$948.95 -
Out of stock
S&S Cycle - 92-1211 - Piston Kit - for 106" Stroker Kit - +.010"
S&S Cycle
$546.95S&S Cycle - 92-1211 - Piston Kit - for 106" Stroker Kit - +.010"FeaturesRequired for S&S 106" stock bore stroker kit with 4-1/2" stroke flywheelsCompatible with stock or S&S Super Stock® cylinder...$546.95 -
Out of stock
Roland Sands Design - 0177-2001-CH - Nostalgia Timing Cover - Chrome
Roland Sands Design
$438.95Rsd - 0177-2001-CH - Nostalgia Timing Cover - ChromeFeaturesMachined from billet aluminumIncludes all mounting hardwareMade in the U.S.A.For '01-'17 Twin Cam Models without Cam Position Sensor...$438.95 -
Out of stock
Roland Sands Design - 0177-2003-CH - Cam Cover - Clarity - Chrome - Twin Cam
Roland Sands Design
$571.95Rsd - 0177-2003-CH - Cam Cover - Clarity - Chrome - Twin CamFeaturesAllows for viewing of the internal moving engine componentsCNC-machined from billet aluminumHardware includedContrast Cut starts...$571.95 -
Out of stock
S&S Cycle - 106-3883 - Billet Tappet Covers - Chrome - Twin Cam
S&S Cycle
MSRP: $335.95$249.95S&S Cycle - 106-3883 - Billet Tappet Covers - Chrome - Twin CamFeaturesCNC-machined from 6061 T-6 billet aluminumBillet material provides extra strength and dimensional stability over a wide...MSRP: $335.95$249.95 -
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
S&S Cycle - 33-5601 - Billet Tappet Covers - Polished - Twin Cam
S&S Cycle
MSRP: $360.95$299.95S&S Cycle - 33-5601 - Billet Tappet Covers - Polished - Twin CamFeaturesCNC-machined from 6061 T-6 billet aluminumBillet material provides extra strength and dimensional stability over a wide...MSRP: $360.95$299.95 -
Out of stock
S&S Cycle - 900-0955 - Cylinder Head Gasket Kit - 4.250" - M8
S&S Cycle
$169.95S&S Cycle - 900-0955 - Cylinder Head Gasket Kit - 4.250" - M8 Features For standard 4.250” bore 0.030” Micropore head gaskets 0.014” Micropore base gaskets Includes two of each head, base and...$169.95 -
Out of stock
Revolution Performance, Llc - RP10181HB030014 - Gasket Kit - 124"/128" - M8
Revolution Performance
$89.95Revolution Performance, Llc - RP10181HB030014 - Gasket Kit - 124"/128" - M8Featuresrevolution performance logoMade in the U.S.A.revolution performance logoSpecs$89.95 -
Out of stock
S&S Cycle - 900-0822 - Gaskets - 4" - .045"
S&S Cycle
$91.95S&S Cycle - 900-0822 - Gaskets - 4" - .045"FeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick coatingMade...$91.95 -
Out of stock
S&S Cycle - 330-0737 - Cam Chain Tensioner - M8
S&S Cycle
$109.95S&S Cycle - 330-0737 - Cam Chain Tensioner - M8FeaturesPrecision-machined from 6061 billet aluminumLarger diameter piston and tighter tolerance fit for more consistent pressureThicker pad for longer...$109.95 -
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 - TIR-RB - Tappet Cover - Tap-It-Right Kit - Gloss Black with Red Base - M8
Revolution Performance
$575.95Revolution Performance, Llc - TIR-RB - Tappet Cover - Tap-It-Right Kit - Gloss Black with Red Base - M8Featuresrevolution performance logoEliminates the risk of the inside bolt on the anti-rotation...$575.95 -
Out of stock
S&S Cycle - 330-0627 - Pinion Gear - Oversized - M8
S&S Cycle
$129.95S&S Cycle - 330-0627 - Pinion Gear - Oversized - M8FeaturesA two-gear set is required for gear-driven cams that do not come with secondary cam gears; be sure to select the appropriate outer cam drive...$129.95 -
Out of stock
Rough Crafts - RC-610-000 - Rocker Box Covers - Black - Grooved
Rough Crafts
$699.95Rough Crafts - RC-610-000 - Rocker Box Covers - Black - GroovedFeaturesCNC machined from forged billet aluminumMounting hardware includedSold in pairsSpecs$699.95 -
Out of stock
Roland Sands Design - 0177-2003-SMB - Cam Cover - Clarity - Black Ops™ - Twin Cam
Roland Sands Design
$571.95Rsd - 0177-2003-SMB - Cam Cover - Clarity - Black Ops™ - Twin CamFeaturesAllows for viewing of the internal moving engine componentsCNC-machined from billet aluminumHardware includedContrast Cut...$571.95 -
Out of stock
S&S Cycle - 90-1906 - Gasket Set - 3.625" - V2 Big Twin
S&S Cycle
$67.95S&S Cycle - 90-1906 - Gasket Set - 3.625" - V2 Big TwinFeaturesContains head gaskets, base gaskets and exhaust pipe gaskets (rocker box gaskets are not included due to the variety of available rocker...$67.95 -
Out of stock
S&S Cycle - 310-0732 - Oil Pump with Cam - Plate Twin Cam
S&S Cycle
$836.95S&S Cycle - 310-0732 - Oil Pump with Cam - Plate Twin CamFeaturesPrecision CNC machined forged aluminumIncreased structural strengthDimensional stabilityFreedom for internal porositySeparate scavenge...$836.95 -
Out of stock
Revolution Performance, Llc - RP201-414W - Cylinder Kit - 1250 cc - Big Bore - Black with Highlighted Fins - XL883
Revolution Performance
$1,343.95Revolution Performance, Llc - RP201-414W - Cylinder Kit - 1250 cc - Big Bore - Black with Highlighted Fins - XL883Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,343.95 -
Out of stock
Revolution Performance, Llc - RP201-618W - Cylinder Kit - 143" - Black - 114"/117" M8
Revolution Performance
$1,899.95Revolution Performance, Llc - RP201-618W - Cylinder Kit - 143" - Black - 114"/117" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC)...$1,899.95 -
Out of stock
Revolution Performance, Llc - RP201-616W - Cylinder Kit - 143" - Black with Highlighted Fins - 114"/117" M8
Revolution Performance
$1,899.95Revolution Performance, Llc - RP201-616W - Cylinder Kit - 143" - Black with Highlighted Fins - 114"/117" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,899.95 -
Out of stock
Revolution Performance, Llc - RP201-613W - Cylinder Kit - 139" - Black - 107" M8
Revolution Performance
$1,899.95Revolution Performance, Llc - RP201-613W - Cylinder Kit - 139" - Black - 107" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC)...$1,899.95 -
Out of stock
Revolution Performance, Llc - RP201-135W - Cylinder Kit - 131" - Granite with Highlighted Fins - Twin Cam
Revolution Performance
$1,599.95Revolution Performance, Llc - RP201-135W - Cylinder Kit - 131" - Granite with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,599.95 -
Out of stock
Revolution Performance, Llc - RP201-129W - Cylinder Kit - 131" - Black with Highlighted Fins - Twin Cam
Revolution Performance
$1,599.95Revolution Performance, Llc - RP201-129W - Cylinder Kit - 131" - Black with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,599.95 -
Out of stock
Revolution Performance, Llc - RP201-130W - Cylinder Kit - 124" - Granite - Twin Cam
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-130W - Cylinder Kit - 124" - Granite - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC)...$1,529.95 -
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 - RP201-603W - Cylinder Kit - 124" - Big Bore - Black - 107" M8
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-603W - Cylinder Kit - 124" - Big Bore - Black - 107" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC)...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-607W - Cylinder Kit - 128" - Big Bore - Black Granite with Highlighted Fins - 114"/117" M8
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-607W - Cylinder Kit - 128" - Big Bore - Black Granite with Highlighted Fins - 114"/117" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-606W - Cylinder Kit - 128" - Big Bore - Black with Highlighted Fins - 114"/117" M8
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-606W - Cylinder Kit - 128" - Big Bore - Black with Highlighted Fins - 114"/117" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-601W - Cylinder Kit - 124" - Big Bore - Black with Highlighted Fins - 107" M8
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-601W - Cylinder Kit - 124" - Big Bore - Black with Highlighted Fins - 107" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Out of stock
Revolution Performance, Llc - RP201-177W - Cylinder Kit - 113" - Big Bore - Granite with Highlighted Fins - Screamin Eagle | CVO 110" Twin Cam
Revolution Performance
$1,479.95Revolution Performance, Llc - RP201-177W - Cylinder Kit - 113" - Big Bore - Granite with Highlighted Fins - Screamin Eagle | CVO 110" Twin CamFeaturesrevolution performance logoAerospace-grade...$1,479.95
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.