Engine
8170 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 - 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 - C9100 - Cylinder Base Gasket - .010" - XL
Cometic
$33.95Cometic - C9100 - Cylinder Base Gasket - .010" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$33.95 -
Cometic - C9759 - Top End Gasket - 883 XL
Cometic
$152.95Cometic - C9759 - Top End Gasket - 883 XLFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$152.95 -
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 - C9854F - Top End Gasket - 1200 XL
Cometic
$151.95Cometic - C9854F - Top End Gasket - 1200 XLFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$151.95 -
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 - C9971 - Top End Gasket - 1200 XL
Cometic
$151.95Cometic - C9971 - Top End Gasket - 1200 XLFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$151.95 -
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 -
Covingtons - C3086-C - Dipstick Cover - Diamondback - Chrome - Touring/Trike
Covington's Customs
$64.95Covingtons - C3086-C - Dipstick Cover - Diamondback - Chrome - Touring/TrikeFeaturesCNC-machined from billet aluminumReplaces the existing cover on the OEM dipstickMade in the USAFitment notes:Must...$64.95 -
Covingtons - C3086-B - Dipstick Cover - Diamondback - Black - Touring/Trike
Covington's Customs
$64.95Covingtons - C3086-B - Dipstick Cover - Diamondback - Black - Touring/TrikeFeaturesCNC-machined from billet aluminumReplaces the existing cover on the OEM dipstickMade in the USAFitment notes:Must...$64.95 -
Covingtons - C3085-C - Dipstick Cover - Diamondback - Chrome - Dyna/Touring/Trike
Covington's Customs
$64.95Covingtons - C3085-C - Dipstick Cover - Diamondback - Chrome - Dyna/Touring/TrikeFeaturesCNC-machined from billet aluminumReplaces the existing cover on the OEM dipstickMade in the USAFitment...$64.95 -
Cometic - C9954 - Rocker Gasket Kit - XL
Cometic
$68.95Cometic - C9954 - Rocker Gasket Kit - XLFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals...$68.95 -
Cometic - C9955 - Tappet Block Gasket - XL
Cometic
$13.95Cometic - C9955 - Tappet Block Gasket - XLFeaturesMade in the U.S.A.Replacement Part for OEM Number(s): 1797604Specs$13.95 -
Cometic - C9857 - Complete Gasket Kit - Standard - '02-'07 XB9R Firebolt
Cometic
$215.95Cometic - C9857 - Complete Gasket Kit - Standard - '02-'07 XB9R FireboltFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head...$215.95 -
Cometic - C9953 - Complete Gasket Kit - .030" - '04-'06 XL 1200
Cometic
$215.95Cometic - C9953 - Complete Gasket Kit - .030" - '04-'06 XL 1200FeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$215.95 -
Cometic - C9778F - Complete Gasket Kit - '99-'06 FLHT/?FLTR/?FLHR
Cometic
$303.95Cometic - C9778F - Complete Gasket Kit - '99-'06 FLHT/?FLTR/?FLHRFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$303.95 -
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 - C9726 - Head Gasket - 4.000" x .040" - 110 - '99-'13 Twin Cam
Cometic
$64.95Cometic - 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,...$64.95 -
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
$64.95Cometic - 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,...$64.95 -
Cometic - C9865 - One Piece Rocker Base - Evo
Cometic
$22.95Cometic - 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$22.95 -
Andrews - 212320 - Cam - AB Grind - Shovelhead
Andrews
$251.95Andrews - 212320 - 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 - 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 - 291130 - Camshaft - EV3 - Evolution Big Twin
Andrews
$251.95Andrews - 291130 - Camshaft - EV3 - Evolution Big TwinFeaturesCapable of 6000+ rpm with stock springs and no valve floatA 6000+ rpm cam for stock heads and springs with hydraulic liftersBolt-in cam...$251.95 -
Andrews - 212310 - Cam - AB Grind - Big Twin
Andrews
$251.95Andrews - 212310 - Cam - AB Grind - 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 unaffected up to...$251.95 -
Andrews - 212020 - Cam - J Grind - Shovelhead
Andrews
$251.95Andrews - 212020 - Cam - J 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 to...$251.95 -
Andrews - 212011 - Cam - J Grind - Big Twin
Andrews
$251.95Andrews - 212011 - Cam - J Grind - 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 unaffected up to...$251.95 -
Andrews - 212440 - Cam - BH Grind - Shovelhead
Andrews
$251.95Andrews - 212440 - Cam - BH 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 - 212430 - Cam - BH Grind - Shovelhead
Andrews
$251.95Andrews - 212430 - Cam - BH 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 - 212130 - Low-Compression Cam - #1 Grind - Big Twin
Andrews
$251.95Andrews - 212130 - Low-Compression Cam - #1 Grind - Big TwinFeaturesDesigned with a combination of shorter durations and higher lifts to offer the advantages of a broad torque output through the...$251.95 -
Andrews - 288121G - Cam Set - 21G - Gear Drive - Twin Cam
Andrews
$476.95Andrews - 288121G - Cam Set - 21G - Gear Drive - Twin CamFeaturesManufactured with the help of a computer with cam design capabilitiesMade from alloy steel billets and heat-treated processes are...$476.95 -
Andrews - 288155G - Cam Set - 55G - Gear Drive - Twin Cam
Andrews
$463.95Andrews - 288155G - Cam Set - 55G - Gear Drive - Twin CamFeaturesManufactured with the help of a computer with cam design capabilitiesMade from alloy steel billets and heat-treated processes are...$463.95 -
Andrews - 288137G - Cam Set - 37G - Gear Drive - Twin Cam
Andrews
$463.95Andrews - 288137G - Cam Set - 37G - Gear Drive - Twin CamFeaturesManufactured with the help of a computer with cam design capabilitiesMade from alloy steel billets and heat-treated processes are...$463.95 -
Andrews - 298145 - N4 Grind Cam - XL
Andrews
$504.95Andrews - 298145 - N4 Grind Cam - XLFeaturesCams run to 6500 rpm with stock hydraulic lifters; recommend solids not be installedStock base circle sizes allow the use of stock pushrodsMade in the U.S...$504.95 -
Andrews - 288150 - Cam Set - TW50 - Chain Drive - Twin Cam
Andrews
$415.95Andrews - 288150 - Cam Set - TW50 - Chain Drive - Twin CamFeaturesManufactured with the help of a computer with cam design capabilitiesMade from alloy steel billets and heat-treated processes are...$415.95 -
Andrews - 288137 - Cam Set - TW37B - Chain Drive - Twin Cam
Andrews
$415.95Andrews - 288137 - Cam Set - TW37B - Chain Drive - Twin CamFeaturesManufactured with the help of a computer with cam design capabilitiesMade from alloy steel billets and heat-treated processes are...$415.95
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.