Engine
2243 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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Cometic - C10088-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.250" x .030" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10088-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.250" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10086-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.125" x .040" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10086-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.125" x .040" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10086-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.125" x .030" - '14-'16 Twin Cam
Cometic
$63.07Cometic - C10086-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.125" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$63.07 -
Cometic - C10085-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.060" x .040" - '14-'16 Twin Cam
Cometic
$63.07Cometic - C10085-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.060" x .040" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$63.07 -
Cometic - C10085-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.060" x .030" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10085-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.060" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10084-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.000" x .040" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10084-040 - Head Gasket - Twin-Cooled/Air-Cooled - 4.000" x .040" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10084-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.000" x .030" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10084-030 - Head Gasket - Twin-Cooled/Air-Cooled - 4.000" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10083-040 - Head Gasket - Twin-Cooled/Air-Cooled - 3.937" x .040" - '14-'16 Twin Cam
Cometic
$63.07Cometic - C10083-040 - Head Gasket - Twin-Cooled/Air-Cooled - 3.937" x .040" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$63.07 -
Cometic - C10083-030 - Head Gasket - Twin-Cooled/Air-Cooled - 3.937" x .030" - '14-'16 Twin Cam
Cometic
$64.95Cometic - C10083-030 - Head Gasket - Twin-Cooled/Air-Cooled - 3.937" x .030" - '14-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant...$64.95 -
Cometic - C10081-040 - Head Gasket - Twin-Cooled/Air-Cooled - 3.875" x .040" - '14-'16 Twin Cam
Cometic
$63.07Cometic - 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...$63.07 -
Cometic - C9976 - Top End Gasket - Twin Cam - 4-1/8"
Cometic
MSRP: $150.10$136.26Cometic - C9976 - Top End Gasket - Twin Cam - 4-1/8"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...MSRP: $150.10$136.26 -
Cometic - C9184 - Complete Gasket Kit - 3.875” - '07-'17 Softail
Cometic
$309.95Cometic - C9184 - Complete Gasket Kit - 3.875” - '07-'17 SoftailFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$309.95 -
Cometic - C9171 - Complete Gasket Kit - 3.750" - '07-'17 Softail
Cometic
$309.95Cometic - C9171 - Complete Gasket Kit - 3.750" - '07-'17 SoftailFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$309.95 -
Cometic - C9157 - Head Gasket - Standard - 3.750" x .051" - 88"/96" - '99-'13 Twin Cam
Cometic
$64.95Cometic - C9157 - Head Gasket - Standard - 3.750" x .051" - 88"/96" - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that...$64.95 -
Cometic - C9164 - Complete Gasket Kit - 3-5/8" - '84-'91 Big Twin
Cometic
$374.77Cometic - C9164 - Complete Gasket Kit - 3-5/8" - '84-'91 Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$374.77 -
Cometic - C9161 - Complete Gasket Kit - 95" Big Bore - .030" - '99-'06 Big Twin
Cometic
$220.47Cometic - 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)...$220.47 -
Cometic - C9155 - S&S Rocker Box Gasket Kit
Cometic
$78.95Cometic - C9155 - S&S Rocker Box Gasket KitFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals...$78.95 -
Cometic - C9146 - Top End Gasket - Twin Cam
Cometic
$156.31Cometic - C9146 - Top End Gasket - Twin CamFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$156.31 -
Cometic - C9748F - Complete Gasket Kit - '92-'99 EVO Big Twin
Cometic
$374.77Cometic - C9748F - Complete Gasket Kit - '92-'99 EVO Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$374.77 -
Cometic - C9920 - Complete Gasket Kit - 95" Big Bore - .040" - '99-'06 Big Twin
Cometic
$220.47Cometic - C9920 - Complete Gasket Kit - 95" Big Bore - .040" - '99-'06 Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS)...$220.47 -
Cometic - C9846F - Complete Gasket Kit - '92-'99 EVO Big Twin
Cometic
$382.95Cometic - C9846F - Complete Gasket Kit - '92-'99 EVO Big TwinFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$382.95 -
Cometic - C9910 - Head Gasket - 4.125" x .030" - '99-'13 Twin Cam
Cometic
$63.07Cometic - C9910 - Head Gasket - 4.125" x .030" - '99-'13 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack...$63.07 -
Cometic - C9739 - Cylinder Base Gasket - 4.125" - .020" - Twin Cam
Cometic
$33.95Cometic - C9739 - Cylinder Base Gasket - 4.125" - .020" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack...$33.95 -
Cometic - C9532 - Cylinder Base Gasket - 3.625" - .010" - EVO
Cometic
$33.95Cometic - C9532 - Cylinder Base Gasket - 3.625" - .010" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.95 -
Cometic - C9938 - Cylinder Base Gasket - 4.125" - .010" - Twin Cam
Cometic
$33.95Cometic - C9938 - Cylinder Base Gasket - 4.125" - .010" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack...$33.95 -
Cometic - C9738 - Cylinder Base Gasket - 4" - .020" - Twin Cam
Cometic
$33.95Cometic - C9738 - Cylinder Base Gasket - 4" - .020" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$33.95 -
Cometic - C9845 - Top End Gasket - Standard - .030" - Fits 1999-2004 Twin Cam std. bore, w/ 0.030" head gaskets
Cometic
$159.95Cometic - 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...$159.95 -
Cometic - C9768 - Top End Gasket - 3-13/16" - Fits 1992-1999 Evolution Big Twin w/ 3 3/16 (" bore)
Cometic
$183.95Cometic - C9768 - Top End Gasket - 3-13/16"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$183.95 -
Cometic - C9771 - Top End Gasket - 3-3/4" - Big Twin
Cometic
$151.95Cometic - C9771 - Top End Gasket - 3-3/4" - Big TwinFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$151.95 -
Cometic - C9951 - Top End Gasket -.045" - Fits 1999-2004 Twin Cam w/ 95" big bore kit and 0.045" head gaskets
Cometic
$156.31Cometic - 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...$156.31 -
Cometic - C9777F - Complete Gasket Kit - '99-'06 Softail and '99-'05 Dyna
Cometic
$302.69Cometic - 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...$302.69 -
Cometic - C9880 - Head Gasket - 4.000" x .040" - TP and S&S EVO
Cometic
$64.95Cometic - C9880 - Head Gasket - 4.000" x .040" - TP and S&S EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$64.95 -
Cometic - C9870 - Cylinder Base Gasket - 3.8125" - .020" - EVO
Cometic
$34.95Cometic - C9870 - Cylinder Base Gasket - 3.8125" - .020" - EVOFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$34.95 -
Cometic - C9872 - Cylinder Base Gasket - 4" - .020" - Big Twin
Cometic
$34.95Cometic - C9872 - Cylinder Base Gasket - 4" - .020" - Big TwinFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$34.95 -
Cometic - C9871 - Cylinder Base Gasket - 4" - .010" - Big Twin
Cometic
$34.95Cometic - C9871 - Cylinder Base Gasket - 4" - .010" - Big TwinFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$34.95 -
Cometic - C9725 - Head Gasket - 4.000" x .030" - 110 - '99-'13 Twin Cam
Cometic
$63.07Cometic - 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,...$63.07 -
Cometic - C9865 - One Piece Rocker Base - Evo
Cometic
MSRP: $22.00$21.55Cometic - 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.SpecsMSRP: $22.00$21.55 -
Andrews - 212335 - Cam - AB Grind - Shovelhead
Andrews
$251.95Andrews - 212335 - Cam - AB Grind - ShovelheadFeaturesMore mid-range and top-end power for street and drag bikes. These cams work with solid or hydraulic lifters, and the idle remains unaffected up...$251.95 -
Andrews - 291146 - Cam - EV46 Grind - Evolution Big Twin
Andrews
$251.95Andrews - 291146 - Cam - EV46 Grind - Evolution Big TwinFeaturesMore mid-range and top-end power for street and drag bikes. These cams work with solid or hydraulic lifters, and the idle remains...$251.95 -
Andrews - 291113 - Camshaft - EV13 - Evolution Big Twin
Andrews
$251.95Andrews - 291113 - Camshaft - EV13 - Evolution Big TwinFeaturesCapable of 6000+ rpm with stock springs and no valve floatBolt-in cam for street or touring use with more mid-range and upper-end power...$251.95
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.