Engine
8284 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 - C9553 - Cylinder Base Gasket - .020" - XL
Cometic
$33.55Cometic - C9553 - Cylinder Base Gasket - .020" - XLFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$33.55 -
Out of stock
Comp Cams - EVL-3030 - V-Thunder Cam
Comp Cams
MSRP: $314.95$309.95Comp Cams - EVL-3030 - V-Thunder CamFeaturesProvide the ultimate in arm-stretching power on the street or in competitionPower proven and backed by hundreds of exhaustive hours on V-Thunder's dyno and...MSRP: $314.95$309.95 -
Out of stock
Comp Cams - EVL-3010 - V-Thunder Cam
Comp Cams
$314.95Comp Cams - EVL-3010 - V-Thunder CamFeaturesProvide the ultimate in arm-stretching power on the street or in competitionPower proven and backed by hundreds of exhaustive hours on V-Thunder's dyno and...$314.95 -
Out of stock
Comp Cams - 7002R-KIT - Fast Times Push Rods
Comp Cams
$229.95Comp Cams - 7002R-KIT - Fast Times Push RodsFeaturesSpecial adjustment system allows installation without removing the rocker boxesMade from 4130 chromoly steel tubing with a .049" wall thicknessThe...$229.95 -
Out of stock
Colony - 7508-20 - Pushrod Kit - Shovelhead/Evolution/Big Twin
Colony Machine
$55.95Colony - 7508-20 - Pushrod Kit - Shovelhead/Evolution/Big TwinFeaturesThese kits contain exact OEM duplicate parts for proper fitmentUpper cover kit contains chrome clips, chrome cups, springs,...$55.95 -
Out of stock
Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin Cam
Cometic
$61.90Cometic - C9722 - Head Gasket - 3.875" x .040" - 95"/103" - '99-'16 Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not...$61.90 -
Out of stock
Cometic - C9586-M8 - Pushrod O-Ring with Tappet Gaskets - M8
Cometic
$15.70Cometic - C9586-M8 - Pushrod O-Ring with Tappet Gaskets - M8 Features Viton® rubber O-ring seals Include proper quantity for one engine Made in the U.S.A. Specs$15.70 -
Out of stock
Cometic - C9215 - Main Drive Gear Seal - Big Twin/M8
Cometic
$14.65Cometic - C9215 - Main Drive Gear Seal - Big Twin/M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$14.65 -
Out of stock
Cometic - C9262 - Main Shaft Seal - EVO
Cometic
$10.95Cometic - C9262 - Main Shaft Seal - EVO Features High-quality products for long-term reliability Manufactured from premium fuel-resistant materials that will not creep, crack or become...$10.95 -
Out of stock
Cometic - C10358-032 - Head Gasket - 4.125" - .032" - MLX - Twin Cam
Cometic
$86.05Cometic - C10358-032 - Head Gasket - 4.125" - .032" - MLX - Twin CamFeaturesManufactured from premium fuel-resistant materials that will not creep, crack or become brittle4.125" big bore is a popular...$86.05 -
Out of stock
Cometic - C10260 - Complete Engine/Primary Gasket Kit - Fits 2017-2023 M-Eight Touring, 3.937" bore, 0.040" head gaskets
Cometic
$330.70Cometic - C10260 - Complete Engine/Primary Gasket KitFeaturesEvery gasket in the kit uses the best materials possible for its intended applicationComplete kit includes motor gasket kit plus primary,...$330.70 -
Out of stock
Cometic - C10250 - Motor Gasket Kit - M8
Cometic
$267.70Cometic - C10250 - Motor Gasket Kit - M8FeaturesEvery gasket in these kit uses the best materials possible for its intended applicationMade in the USASpecs$267.70 -
Out of stock
Cometic - C10219 - Top End Gasket Kit with 0.040" Head Gasket - M8
Cometic
$240.40Cometic - C10219 - Top End Gasket Kit with 0.040" Head Gasket - M8FeaturesHead gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to...$240.40 -
Out of stock
Cometic - C10217 - Top End Gasket Kit with 0.040" Head Gasket - M8
Cometic
$240.40Cometic - C10217 - Top End Gasket Kit with 0.040" Head Gasket - M8FeaturesHead gasket material allows heat to be drawn away from the combustion ring and dissipated evenly across the gasket surface to...$240.40 -
Out of stock
Cometic - C10242 - Base Gasket - Gen-2 Embossing - M8
Cometic
$33.55Cometic - C10242 - Base Gasket - Gen-2 Embossing - M8FeaturesCenter or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirementsOuter layers are...$33.55 -
Out of stock
Cometic - C10164 - Cylinder Head Gasket - 3.937" - M8
Cometic
$61.90Cometic - C10164 - Cylinder Head Gasket - 3.937" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Out of stock
Cometic - C10146F1 - Cam Cover Gasket
Cometic
$17.80Cometic - C10146F1 - Cam Cover GasketFeaturesHigh-quality products for long-term reliabilityGaskets available in multiple types to best suit the intended applicationManufactured from premium...$17.80 -
Out of stock
Cometic - C10128 - Complete Gasket Kit - 110"
Cometic
$169.00Cometic - C10128 - Complete Gasket Kit - 110"FeaturesEvery gasket in these kits uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel Viton®-coated...$169.00 -
Out of stock
Cometic - C10138 - Top End Gasket Kit - Twin Cooled - .040" - Fits 2014-2016 Twin Cooled Twin Cam 4.00" bore
Cometic
$183.70Cometic - C10138 - Top End Gasket Kit - Twin Cooled - .040"FeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a...$183.70 -
Out of stock
Cometic - C10214 - Transmission/Engine Gasket - M8
Cometic
$12.95Cometic - C10214 - Transmission/Engine Gasket - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become...$12.95 -
Out of stock
Cometic - C10197 - Oil Pan Rebuild Gasket Kit - M8 - Touring
Cometic
$102.85Cometic - C10197 - Oil Pan Rebuild Gasket Kit - M8 - TouringFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or...$102.85 -
Out of stock
Cometic - C10194 - Cylinder Base Gasket - M8
Cometic
$33.55Cometic - C10194 - Cylinder Base Gasket - M8FeaturesCenter or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirementsOuter layers are embossed and...$33.55 -
Out of stock
Cometic - C10192 - Cylinder Head Gasket - 4.320" - M8
Cometic
$61.90Cometic - C10192 - Cylinder Head Gasket - 4.320" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Out of stock
Cometic - C10183 - Lower Rocker Box Gaskets
Cometic
$27.25Cometic - C10183 - Lower Rocker Box GasketsFeaturesViton 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...$27.25 -
Out of stock
Cometic - C10182-030 - Cylinder Head Gasket - 4.320" - M8
Cometic
$61.90Cometic - C10182-030 - Cylinder Head Gasket - 4.320" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Out of stock
Cometic - C10181-HB - Cylinder Head/Base Gasket - Oil Cooled Heads - M8
Cometic
$79.75Cometic - C10181-HB - Cylinder Head/Base Gasket - Oil Cooled Heads - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner...$79.75 -
Out of stock
Cometic - C10179 - Upper Rocker Box Gasket
Cometic
$13.60Cometic - C10179 - Upper Rocker Box 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...$13.60 -
Out of stock
Cometic - C10177-010 - Cylinder Base Gasket - M8
Cometic
$33.55Cometic - C10177-010 - Cylinder Base Gasket - M8FeaturesCenter or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirementsOuter layers are embossed...$33.55 -
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 -
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 -
Out of stock
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 - 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 -
Out of stock
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
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.