Engine
8271 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
Cometic - C9363 - Derby Cover Bolt Washer
Cometic
$5.20Cometic - C9363 - Derby Cover Bolt Washer Features High-quality products for long-term reliability Manufactured from premium fuel-resistant materials that will not creep, crack or become...$5.20 -
Cometic - C9166 - Valve Stem Seal - Viton
Cometic
$6.25Cometic - C9166 - Valve Stem Seal - VitonFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$6.25 -
Out of stock
Cometic - C9192 - Top End Gasket Kit - 883 - Fits 2007-2022 XL883 w/ 3.00" bore
Cometic
$229.90Cometic - C9192 - Top End Gasket Kit - 883FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$229.90 -
Out of stock
Cometic - C10123-030 - Complete Gasket Kit - 3.937" - '06-'17 Dyna
Cometic
$287.65Cometic - C10123-030 - Complete Gasket Kit - 3.937" - '06-'17 DynaFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head...$287.65 -
Out of stock
Cometic - C10113 - Complete Gasket Kit - 4.060" - '06-'17 Dyna
Cometic
$209.95Cometic - C10113 - Complete Gasket Kit - 4.060" - '06-'17 DynaFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$209.95 -
Out of stock
Cometic - C9196F5 - Gasket
Cometic
$12.55Cometic - C9196F5 - GasketFeaturesViton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides.Made in the U.S.A.Replacement Part for OEM Number(s):...$12.55 -
Cometic - C10081-030 - Head Gasket - Twin-Cooled/Air-Cooled - 3.875" x .030" - '14-'16 Twin Cam
Cometic
$59.80Cometic - C10081-030 - Head Gasket - Twin-Cooled/Air-Cooled - 3.875" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$59.80 -
Out of stock
Cometic - C10081-040 - Head Gasket - Twin-Cooled/Air-Cooled - 3.875" x .040" - '14-'16 Twin Cam
Cometic
$59.80Cometic - C10081-040 - Head Gasket - Twin-Cooled/Air-Cooled - 3.875" x .040" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$59.80 -
Out of stock
Cometic - C9976-030 - Top End Gasket Twin Cam - EST
Cometic
$150.10Cometic - C9976-030 - Top End Gasket Twin Cam - ESTFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$150.10 -
Cometic - C9190F5 - Transmission/Engine Case Gasket
Cometic
$23.05Cometic - C9190F5 - Transmission/Engine Case GasketFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$23.05 -
Out of stock
Cometic - C9205 - Head Gasket - Standard - .040" - '86-'07 XL 883
Cometic
$61.90Cometic - C9205 - Head Gasket - Standard - .040" - '86-'07 XL 883FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack...$61.90 -
Out of stock
Cometic - C9208 - Outer Rocker Gasket
Cometic
$22.00Cometic - C9208 - Outer Rocker GasketFeaturesViton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides.Made in the U.S.A.Replacement Part for OEM...$22.00 -
Out of stock
Cometic - C9197 - Inner Rocker Gasket
Cometic
$5.20Cometic - C9197 - Inner Rocker GasketFeaturesViton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides.Made in the U.S.A.Replacement Part for OEM...$5.20 -
Out of stock
Cometic - C9196 - Outer Rocker Gasket
Cometic
$22.00Cometic - C9196 - Outer Rocker GasketFeaturesViton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides.Made in the U.S.A.Replacement Part for OEM...$22.00 -
Out of stock
Cometic - C9190 - Transmission/Engine Case Gasket
Cometic
$25.15Cometic - C9190 - Transmission/Engine Case GasketFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$25.15 -
Out of stock
Cometic - C9180 - Head Gasket - Standard - .060" - '84-'99 EVO
Cometic
$90.25Cometic - C9180 - Head Gasket - Standard - .060" - '84-'99 EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$90.25 -
Out of stock
Cometic - C9177 - Top End Gasket - XL 1200
Cometic
$142.75Cometic - C9177 - Top End Gasket - XL 1200FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$142.75 -
Out of stock
Cometic - C9176 - Complete Gasket Kit - '07-'22 XL 1200
Cometic
$288.70Cometic - C9176 - Complete Gasket Kit - '07-'22 XL 1200FeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$288.70 -
Out of stock
Cometic - C9168 - Oil Pump Rebuild Gasket - Fits 1992-1999 Evolution Big Twin
Cometic
$28.30Cometic - C9168 - Oil Pump Rebuild GasketFeaturesIncludes correct amount of gaskets, seal, O-rings, retaining rings and keys for one applicationMeets or exceeds OEM qualityPremium vulcanized rubber...$28.30 -
Cometic - C9161 - Complete Gasket Kit - 95" Big Bore - .030" - '99-'06 Big Twin
Cometic
$209.95Cometic - C9161 - Complete Gasket Kit - 95" Big Bore - .030" - '99-'06 Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS)...$209.95 -
Cometic - C9850 - Top End Gasket - Standard - .030" - Fits 1992-1999 Evolution Big Twin, std. bore 0.030" head gaskets
Cometic
$142.75Cometic - C9850 - Top End Gasket - Standard - .030"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$142.75 -
Out of stock
Cometic - C9851 - Top End Gasket - Standard - .030" - Fits 1984-1991 Evolution Big Twin, std. bore, 0.030" head gaskets
Cometic
$142.75Cometic - C9851 - Top End Gasket - Standard - .030"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$142.75 -
Out of stock
Cometic - C9892 - Motor Gasket Kit - 1550
Cometic
$169.00Cometic - C9892 - Motor Gasket Kit - 1550FeaturesEvery gasket in these kits uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel Viton®-coated base...$169.00 -
Out of stock
Cometic - C9847F - Complete Gasket Kit - .030" - 4/5 Speed - '84-'88 Big Twin
Cometic
$356.95Cometic - C9847F - Complete Gasket Kit - .030" - 4/5 Speed - '84-'88 Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head...$356.95 -
Out of stock
Cometic - C9937 - Cylinder Base Gasket - 4" - .010" - Twin Cam
Cometic
$33.55Cometic - C9937 - Cylinder Base Gasket - 4" - .010" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.55 -
Out of stock
Cometic - C9101 - Cylinder Base Gasket - .010" - EVO
Cometic
$33.55Cometic - C9101 - Cylinder Base Gasket - .010" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$33.55 -
Cometic - C9845 - Top End Gasket - Standard - .030" - Fits 1999-2004 Twin Cam std. bore, w/ 0.030" head gaskets
Cometic
$150.10Cometic - C9845 - Top End Gasket - Standard - .030"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$150.10 -
Out of stock
Cometic - C9970 - Top End Gasket - 1200 XL
Cometic
$142.75Cometic - C9970 - Top End Gasket - 1200 XLFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$142.75 -
Out of stock
Cometic - C9951 - Top End Gasket -.045" - Fits 1999-2004 Twin Cam w/ 95" big bore kit and 0.045" head gaskets
Cometic
$150.10Cometic - C9951 - Top End Gasket -.045"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$150.10 -
Out of stock
Cometic - C9952 - Complete Gasket Kit - .040" - '04-'06 XL 1200
Cometic
$202.60Cometic - C9952 - Complete Gasket Kit - .040" - '04-'06 XL 1200FeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$202.60 -
Out of stock
Cometic - C9777F - Complete Gasket Kit - '99-'06 Softail and '99-'05 Dyna
Cometic
$287.65Cometic - C9777F - Complete Gasket Kit - '99-'06 Softail and '99-'05 DynaFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head...$287.65 -
Out of stock
Cometic - C9750F - Complete Gasket Kit - 5 Speed - '84-'91 FLT/FXR
Cometic
$356.95Cometic - C9750F - Complete Gasket Kit - 5 Speed - '84-'91 FLT/FXRFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head...$356.95 -
Out of stock
Cometic - C9879 - Head Gasket - 4.000" x .036" - TP and S&S EVO
Cometic
$61.90Cometic - C9879 - Head Gasket - 4.000" x .036" - TP and S&S EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$61.90 -
Cometic - C9726 - Head Gasket - 4.000" x .040" - 110 - '99-'13 Twin Cam
Cometic
$61.90Cometic - C9726 - Head Gasket - 4.000" x .040" - 110 - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep,...$61.90 -
Out of stock
Cometic - C9878 - Head Gasket - 4.000" x .030" - TP and S&S EVO
Cometic
$61.90Cometic - C9878 - Head Gasket - 4.000" x .030" - TP and S&S EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$61.90 -
Cometic - C9725 - Head Gasket - 4.000" x .030" - 110 - '99-'13 Twin Cam
Cometic
$61.90Cometic - C9725 - Head Gasket - 4.000" x .030" - 110 - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep,...$61.90 -
Cometic - C9865 - One Piece Rocker Base - Evo
Cometic
$22.00Cometic - C9865 - One Piece Rocker Base - EvoFeaturesViton gaskets feature a stainless steel core with a .001"-thick coating of Viton rubber on both sides.Made in the U.S.A.Specs$22.00 -
Out of stock
Andrews - 214080 - Y Grind Cams - XL
Andrews
$633.95Andrews - 214080 - Y Grind Cams - XLFeaturesBiggest available four-cam set that does not require head work; however, some 82 engines may require spring spacingUses stock springs and provides great...$633.95 -
Out of stock
Andrews - 214110 - Cams - R5 Grind - XL
Andrews
$633.95Andrews - 214110 - Cams - R5 Grind - XLFeaturesBiggest available four-cam set that does not require head work; however, some 82 engines may require spring spacingUses stock springs and provides great...$633.95 -
Out of stock
Andrews - 214014 - PB+ Grind Cam - XL
Andrews
$357.17Andrews - 214014 - PB+ Grind Cam - XLFeatures"PB+" exhaust cams only (#s 1 and 4)Use with stock P intake cams for bolt-in power with stock 1000cc engines; stock springs are okay and no head work is...$357.17
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.