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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S&S Cycle - 930-0090 - Gaskets - 4" - Twin Cam
S&S Cycle
$45.95S&S Cycle - 930-0090 - Gaskets - 4" - Twin CamFeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick...$45.95 -
S&S Cycle - 930-0087 - Gaskets - 4" - Evo - .043"
S&S Cycle
$27.95S&S Cycle - 930-0087 - Gaskets - 4" - Evo - .043"FeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick...$27.95 -
S&S Cycle - 930-0097 - Gaskets - 3.625" - .062"
S&S Cycle
$52.95S&S Cycle - 930-0097 - Gaskets - 3.625" - .062"FeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick...$52.95 -
S&S Cycle - 930-0091 - Gaskets - 3.625" - .045"
S&S Cycle
$35.95S&S Cycle - 930-0091 - Gaskets - 3.625" - .045"FeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick...$35.95 -
S&S Cycle - 930-0098 - Gaskets - 3.5" - .045"
S&S Cycle
$50.95S&S Cycle - 930-0098 - Gaskets - 3.5" - .045"FeaturesHead gaskets are made from aramid fiber-reinforced premium graphite material with a steel core, stainless steel fire ring and anti-stick...$50.95 -
S&S Cycle - 910-0465 - Cylinder Gasket Kit - 3.927" - 97"/106" S&S Twin Cam
S&S Cycle
$102.95S&S Cycle - 910-0465 - Cylinder Gasket Kit - 3.927" - 97"/106" S&S Twin CamFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be...$102.95 -
S&S Cycle - 106-1020 - Complete Gasket Kit - 4" - EVO Big Twin
S&S Cycle
$224.95S&S Cycle - 106-1020 - Complete Gasket Kit - 4" - EVO Big TwinFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be purchased...$224.95 -
S&S Cycle - 90-1914 - Top End Gasket - 4.125"
S&S Cycle
$147.95S&S Cycle - 90-1914 - Top End Gasket - 4.125"FeaturesIncludes set of head and base gaskets, exhaust gaskets and O-ringsLayered steel head gasketsMade in the U.S.A.Kit does not include rocker box...$147.95 -
S&S Cycle - 90-4097 - Rocker Box Gasket Kit - Fits 1999-2011 Twin Cam w/ OEM rocker boxes
S&S Cycle
$144.95S&S Cycle - 90-4097 - Rocker Box Gasket KitFeaturesIncludes all required gaskets and O-rings for both rocker boxesSpecs$144.95 -
S&S Cycle - 90-9510 - Top End Gasket Kit - 4-1/8" - Big Twin
S&S Cycle
$181.95S&S Cycle - 90-9510 - Top End Gasket Kit - 4-1/8" - Big TwinFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be purchased separately...$181.95 -
S&S Cycle - 900-0798 - Top Mount - T143
S&S Cycle
$85.95S&S Cycle - 900-0798 - Top Mount - T143 Features Fits in stock chassis, no cutting or frame modifications necessary. B3 cylinder heads CNC-machined with two-bolt exhaust flanges. Super Stock™ T2...$85.95 -
S&S Cycle - 90-1905 - Gasket Set - 3.5" - V2 Big Twin
S&S Cycle
$75.95S&S Cycle - 90-1905 - Gasket Set - 3.5" - V2 Big TwinFeaturesContains head gaskets, base gaskets and exhaust pipe gaskets (rocker box gaskets are not included due to the variety of available rocker...$75.95 -
S&S Cycle - 900-0797 - Top Mount - T143
S&S Cycle
$71.95S&S Cycle - 900-0797 - Top Mount - T143 Features Fits in stock chassis, no cutting or frame modifications necessary. B3 cylinder heads CNC-machined with two-bolt exhaust flanges. Super Stock™ T2...$71.95 -
S&S Cycle - 310-0939A - Camplate - M8
S&S Cycle
MSRP: $406.95$395.95S&S Cycle - 310-0939A - Camplate - M8FeaturesPrecision machined from billet aluminumBlue anodized finishPassage plugs are removeable for servicingMade in U.S.A.SpecsMSRP: $406.95$395.95 -
S&S Cycle - 31-6278 - Oil Pump Rebuild Kit - Standard
S&S Cycle
$39.95S&S Cycle - 31-6278 - Oil Pump Rebuild Kit - StandardFeaturesMaster rebuild kit for S&S oil pumpMade in the U.S.A.Specs$39.95 -
S&S Cycle - 50-8113 - Elbow - 45° - 1/4"-18 NPTF x .375"
S&S Cycle
$15.95S&S Cycle - 50-8113 - Elbow - 45 - 1/4"-18 NPTF x .375"Features45 pipe fitting for oil and breather line connectionsUsed on big twin crankcase flywheel cavity breather lineSpecs$15.95 -
S&S Cycle - 31-6296 - Oil Pump with Gears - Standard Cover - Big Twin
S&S Cycle
$715.95S&S Cycle - 31-6296 - Oil Pump with Gears - Standard Cover - Big TwinFeaturesKit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft...$715.95 -
S&S Cycle - 31-6295 - Oil Pump with Gears - Universal Cover - Big Twin
S&S Cycle
$715.95S&S Cycle - 31-6295 - Oil Pump with Gears - Universal Cover - Big TwinFeaturesKit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft...$715.95 -
S&S Cycle - 31-6275 - Oil Pump Rebuild Kit
S&S Cycle
$31.95S&S Cycle - 31-6275 - Oil Pump Rebuild KitFeaturesMaster rebuild kit for S&S oil pumpMade in the U.S.A.Specs$31.95 -
S&S Cycle - 33-4249 - Breather Gear Spacing Shim Kit - Big Twin
S&S Cycle
$49.95S&S Cycle - 33-4249 - Breather Gear Spacing Shim Kit - Big TwinFeaturesShim kit includes one of each thickness: 0.100\Made in the USASpecs$49.95 -
S&S Cycle - 31-6205 - Oil Pump - Universal Cover
S&S Cycle
MSRP: $459.95$445.95S&S Cycle - 31-6205 - Oil Pump - Universal CoverFeaturesKit includes oil pump, universal cover with top and bottom feeds, mounting bolts, supply and return gears, drive shaft with keys and snap...MSRP: $459.95$445.95 -
S&S Cycle - 33-4242 - Breather Gear - +.03" - Fits 1984-1999 Evolution Big Twin (+0.030" )
S&S Cycle
$199.95S&S Cycle - 33-4242 - Breather Gear - +.03"FeaturesAll-steel constructionWelded-in screenHigher flow than stockElongated breather pocket scavenge hole for increased suctionSpecs$199.95 -
S&S Cycle - 33-4241 - Breather Gear - Big Twin
S&S Cycle
$125.95S&S Cycle - 33-4241 - Breather Gear - Big TwinFeaturesAll-steel constructionWelded-in screenHigher flow than stockElongated breather pocket scavenge hole for increased suctionSpecs$125.95 -
S&S Cycle - 310-0731 - Oil Pump with Cam Plate - Fits 1999-2006 Twin Cam (except 06 Dyna)
S&S Cycle
$836.95S&S Cycle - 310-0731 - Oil Pump with Cam PlateFeaturesPrecision CNC machined forged aluminumIncreased structural strengthDimensional stabilityFreedom for internal porositySeparate scavenge sections...$836.95 -
S&S Cycle - 910-0847 - 132" Big Bore Cylinder Kit - Black Granite/Highlighted Fins - For 114"/117" Engine - M8
S&S Cycle
MSRP: $1,649.95$1,599.95S&S Cycle - 910-0847 - 132" Big Bore Cylinder Kit - Black Granite/Highlighted Fins - For 114"/117" Engine - M8FeaturesBolt-on without requiring machining of the crankcaseOriginal engine serial...MSRP: $1,649.95$1,599.95 -
Revolution Performance, Llc - RP201-411W - Cylinder Kit - 90" - Black with Highlighted Fins - XL
Revolution Performance
$1,479.95Revolution Performance, Llc - RP201-411W - Cylinder Kit - 90" - Black with Highlighted Fins - XLFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide...$1,479.95 -
Revolution Performance, Llc - RP201-405W - Cylinder Kit - 1250 cc - Big Bore - Black with Highlighted Fins - XL1200
Revolution Performance
$1,343.95Revolution Performance, Llc - RP201-405W - Cylinder Kit - 1250 cc - Big Bore - Black with Highlighted Fins - XL1200Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,343.95 -
Revolution Performance, Llc - RP201-406W - Cylinder Kit - 1250 cc - Big Bore - Black - XL1200
Revolution Performance
$1,343.95Revolution Performance, Llc - RP201-406W - Cylinder Kit - 1250 cc - Big Bore - Black - XL1200Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with nickel-silicon-carbide (NSC)...$1,343.95 -
Revolution Performance, Llc - RP201-404W - Cylinder Kit - 1250 cc - Big Bore - Natural Silver - XL1200
Revolution Performance
$1,343.95Revolution Performance, Llc - RP201-404W - Cylinder Kit - 1250 cc - Big Bore - Natural Silver - XL1200Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,343.95 -
Revolution Performance, Llc - RP201-611W - Cylinder Kit - 139" - Black with Highlighted Fins - 107" M8
Revolution Performance
$1,899.95Revolution Performance, Llc - RP201-611W - Cylinder Kit - 139" - Black with Highlighted Fins - 107" M8Featuresrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,899.95 -
Revolution Performance, Llc - RP201-126W - Cylinder Kit - 124" - Black with Highlighted Fins - Twin Cam
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-126W - Cylinder Kit - 124" - Black with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Revolution Performance, Llc - RP201-172WB - Cylinder Kit - 117" - Black with Highlighted Fins - Twin Cam
Revolution Performance
$1,529.95Revolution Performance, Llc - RP201-172WB - Cylinder Kit - 117" - Black with Highlighted Fins - Twin CamFeaturesrevolution performance logoAerospace-grade all-aluminum cylinder with...$1,529.95 -
Revolution Performance, Llc - RP201-174W - Cylinder Kit - 113" - Big Bore - Black with Highlighted Fins - Screamin Eagle | CVO 110" Twin Cam
Revolution Performance
$1,479.95Revolution Performance, Llc - RP201-174W - Cylinder Kit - 113" - Big Bore - Black with Highlighted Fins - Screamin Eagle | CVO 110" Twin CamFeaturesrevolution performance logoAerospace-grade...$1,479.95 -
S&S Cycle - 90-4914 - Replacement Electric Compression Release Assembly
S&S Cycle
$193.95S&S Cycle - 90-4914 - Replacement Electric Compression Release AssemblyFeaturesElectric compression releases open when you press the start button and close when the button is releasedIncludes...$193.95 -
S&S Cycle - 90-1504 - Cylinder Head Kit - Big Twin
S&S Cycle
$1,799.95S&S Cycle - 90-1504 - Cylinder Head Kit - Big TwinFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and high-lift...$1,799.95 -
S&S Cycle - 90-1004 - Cylinder Head Kit - Big Twin
S&S Cycle
$1,949.95S&S Cycle - 90-1004 - Cylinder Head Kit - Big TwinFeaturesS&S heads give great performance, and work with additional upgradesKits are fully assembled, and include stainless steel valves and high-lift...$1,949.95 -
S&S Cycle - 330-0718 - Precision Tappet Set - Fits 2017-2025 M-Eight, 1999-2017 Twin Cam, 2000-2022 XL (except RH Sportster)
S&S Cycle
$279.95S&S Cycle - 330-0718 - Precision Tappet Set Features Reduced valve train noise from start up to shut down Close tolerances for low leak down rates Fast pump up and superior high rpm...$279.95 -
S&S Cycle - 90-1106 - Cylinder Heads - 89 cc - Super Stock® - Twin Cam
S&S Cycle
$1,795.95S&S Cycle - 90-1106 - Cylinder Heads - 89 cc - Super Stock® - Twin CamFeaturesHeads are fully assembled with springs and valvesDesigned for '99-'05 engines with stock crankcaseGood for touring bikes...$1,795.95 -
S&S Cycle - 33-5353 - Lifters with HL?T Kit
S&S Cycle
$409.95S&S Cycle - 33-5353 - Lifters with HL?T KitFeaturesRollers have a larger-than-stock inner bearing race that reduces stress and increases axle lifeEach lifter body and plunger assembly is hand-fit and...$409.95 -
S&S Cycle - 330-0378 - High-Quality Tappet Roller Kit - Fits 1986-1990 XL; 1984-1999 80" Evolution Big Twin
S&S Cycle
$183.95S&S Cycle - 330-0378 - High-Quality Tappet Roller KitFeaturesMade from 52100 bearing materialInclude 4340 chromoly axlesSpecs$183.95
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.