Engine
2207 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 - C10358-036 - Head Gasket - 4.125" - .036" - MLX - Twin Cam
Cometic
$86.05Cometic - C10358-036 - Head Gasket - 4.125" - .036" - MLX - Twin CamFeaturesManufactured from premium fuel-resistant materials that will not creep, crack or become brittle4.125" big bore is a popular...$86.05 -
Cometic - C10348-036 - Head Gasket - 4.500" x 0.036" - M8
Cometic
$86.05Cometic - C10348-036 - Head Gasket - 4.500" x 0.036" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10347-036 - Head Gasket - 4.430" x 0.036" - M8
Cometic
$86.05Cometic - C10347-036 - Head Gasket - 4.430" x 0.036" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10336-040 - Head Gasket - 4.320" x 0.040" - M8
Cometic
$86.05Cometic - C10336-040 - Head Gasket - 4.320" x 0.040" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10336-036 - Head Gasket - 4.320" x 0.036" - M8
Cometic
$86.05Cometic - C10336-036 - Head Gasket - 4.320" x 0.036" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10336-032 - Head Gasket - 4.320" x 0.032" - M8
Cometic
$86.05Cometic - C10336-032 - Head Gasket - 4.320" x 0.032" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10345-036 - Head Gasket - 3.937" x 0.036" - M8
Cometic
$86.05Cometic - C10345-036 - Head Gasket - 3.937" x 0.036" - M8FeaturesMLX Gasket (Multi-Layer-Xtreme) features an extra “stopper” fold-over layer providing a torque limiting surface that prevents yielding...$86.05 -
Cometic - C10256 - Motor Gasket Kit - M8
Cometic
$267.70Cometic - C10256 - Motor Gasket Kit - M8FeaturesEvery gasket in these kit uses the best materials possible for its intended applicationMade in the USASpecs$267.70 -
Cometic - C10252 - Motor Gasket Kit - M8
Cometic
$259.30Cometic - C10252 - Motor Gasket Kit - M8FeaturesEvery gasket in these kit uses the best materials possible for its intended applicationMade in the USASpecs$259.30 -
Cometic - C10223 - Top End Gasket Kit with 0.040" Head Gasket - M8
Cometic
$240.40Cometic - C10223 - 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 -
Cometic - C10167-HB-030 - Cylinder Head/Base Gasket - M8
Cometic
$81.85Cometic - C10167-HB-030 - Cylinder Head/Base Gasket - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner steel layer to...$81.85 -
Cometic - C10167-036 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167-036 - Cylinder Head Gasket - 4.145" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10167-030 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167-030 - Cylinder Head Gasket - 4.145" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10167 - Cylinder Head Gasket - 4.145" - M8
Cometic
$61.90Cometic - C10167 - Cylinder Head Gasket - 4.145" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Cometic - C10166-HB-030 - Cylinder Head/Base Gasket - M8
Cometic
$81.85Cometic - C10166-HB-030 - Cylinder Head/Base Gasket - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner steel layer to...$81.85 -
Cometic - C10166-030 - Cylinder Head Gasket - 4.075" - M8
Cometic
$61.90Cometic - C10166-030 - Cylinder Head Gasket - 4.075" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10166 - Cylinder Head Gasket - 4.095" - M8
Cometic
$61.90Cometic - C10166 - Cylinder Head Gasket - 4.095" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Cometic - C10164-HB-030 - Cylinder Head/Base Gasket - M8
Cometic
$81.85Cometic - C10164-HB-030 - Cylinder Head/Base Gasket - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner steel layer to...$81.85 -
Cometic - C10165 - Cylinder Head Gasket - 4.000" - M8
Cometic
$61.90Cometic - C10165 - Cylinder Head Gasket - 4.000" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Cometic - C10165-030 - Cylinder Head Gasket - 4.000" - M8
Cometic
$61.90Cometic - C10165-030 - Cylinder Head Gasket - 4.000" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10157-030 - Complete Gasket Kit - 0.030" - 110" Air Cooled Engine - 4.030" I.D. - '07-'16 CVO
Cometic
$287.65Cometic - C10157-030 - Complete Gasket Kit - 0.030" - 110" Air Cooled Engine - 4.030" I.D. - '07-'16 CVOFeaturesEvery gasket in the kit uses the best materials possible for its intended...$287.65 -
Cometic - C10164-030 - Cylinder Head Gasket - 3.937" - M8
Cometic
$61.90Cometic - C10164-030 - Cylinder Head Gasket - 3.937" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10157 - Complete Gasket Kit - 0.040" - 110" Air Cooled Engine - 4.030" I.D. - '07-'16 CVO
Cometic
$287.65Cometic - C10157 - Complete Gasket Kit - 0.040" - 110" Air Cooled Engine - 4.030" I.D. - '07-'16 CVOFeaturesEvery gasket in the kit uses the best materials possible for its intended...$287.65 -
Cometic - C10128-040 - Complete Gasket Kit - 110"
Cometic
$169.00Cometic - C10128-040 - Complete Gasket Kit - 110"FeaturesEvery gasket in these kits uses the best materials possible for its intended applicationMulti-Layer Steel (MLS) head gasketsSteel...$169.00 -
Cometic - C9949-030 - Top End Gasket Kit - Twin Cam
Cometic
$146.95Cometic - C9949-030 - Top End Gasket Kit - Twin CamFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary...$146.95 -
Cometic - C9949 - Top End Gasket Kit - Twin Cam
Cometic
$153.25Cometic - C9949 - Top End Gasket Kit - Twin CamFeaturesEST (Extreme Sealing Technology) gasket kit includes embossed stainless steel head, base, and rocker gaskets covered with a proprietary rubber...$153.25 -
Cometic - C10178-FP - Cam Change Gasket Kit - M8
Cometic
$60.85Cometic - C10178-FP - Cam Change Gasket Kit - M8FeaturesComponents made from premium materials for long life and correct fitmentIncludes all necessary gaskets, seals, O-rings and cork washers to do a...$60.85 -
Cometic - C10226 - Rocker Gasket Kit - M8
Cometic
$77.65Cometic - C10226 - Rocker Gasket Kit - M8FeaturesKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxes.Made in the U.S.A.Specs$77.65 -
Cometic - C10195 - Cylinder Base Gasket - M8
Cometic
$33.55Cometic - C10195 - 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 -
Cometic - C10193-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8
Cometic
$81.85Cometic - C10193-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner...$81.85 -
Cometic - C10192-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8
Cometic
$81.85Cometic - C10192-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner...$81.85 -
Cometic - C10191-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8
Cometic
$81.85Cometic - C10191-HB - Cylinder Head/Base Gasket - Liquid Cooled Heads - M8FeaturesKit features Multi-Layer Steel (MLS) gaskets and two outer Viton®-coated embossed spring steel layers with an inner...$81.85 -
Cometic - C10181HB030014 - Cylinder Head/Base Gasket - Oil Cooled Heads - M8
Cometic
$78.70Cometic - C10181HB030014 - 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...$78.70 -
Cometic - C10181HB030020 - Cylinder Head/Base Gasket - Oil Cooled Heads - M8
Cometic
$78.70Cometic - C10181HB030020 - 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...$78.70 -
Cometic - C10182 - Cylinder Head Gasket - 4.320" - M8
Cometic
$61.90Cometic - C10182 - 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 -
Cometic - C10181-030 - Cylinder Head Gasket - 4.250" - M8
Cometic
$61.90Cometic - C10181-030 - Cylinder Head Gasket - 4.250" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even...$61.90 -
Cometic - C10181 - Cylinder Head Gasket - 4.250" - M8
Cometic
$61.90Cometic - C10181 - Cylinder Head Gasket - 4.250" - M8FeaturesQuality materials developed for maximum performance tolerances and longevityMLS (Mutli-Layer Steel) head gaskets promote an even torque...$61.90 -
Cometic - C10179-2 - Upper Rocker Box Gasket
Cometic
$26.20Cometic - C10179-2 - 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...$26.20 -
Cometic - C10177-020 - Cylinder Base Gasket - M8
Cometic
$33.55Cometic - C10177-020 - 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 -
Cometic - C10177 - Cylinder Base Gasket - M8
Cometic
$33.55Cometic - C10177 - 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
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.