Engine
2332 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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- Qty in Cart
- Quantity
- Price
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Drag Specialties - 07120390 - Oil Filter Mount - Black
Drag Specialties
$95.50Drag Specialties - 07120390 - Oil Filter Mount - BlackFeaturesDesigned to replace the OEM cast mountIncludes 3/4"-16 oil filter adapterMount with OEM hardware11/16" threads accept OEM hard...$95.50 -
Drag Specialties - 07110245 - Oil Drain Elbow - Softail
Drag Specialties
$7.37Drag Specialties - 07110245 - Oil Drain Elbow - SoftailFeaturesHigh-quality rubberReplacement Part for OEM Number(s):6362800Specs$7.37 -
Drag Specialties - 07110244 - Oil Line - Vent - Chrome - Softail
Drag Specialties
$93.23Drag Specialties - 07110244 - Oil Line - Vent - Chrome - SoftailFeaturesOEM-style replacement componentAccepts all OEM connectors and retainersReplacement Part for OEM Number(s):4580607Specs$93.23 -
Drag Specialties - 07110243 - Oil Line - Return - Chrome - Softail
Drag Specialties
$114.43Drag Specialties - 07110243 - Oil Line - Return - Chrome - SoftailFeaturesOEM-style replacement componentAccepts all OEM connectors and retainersReplacement Part for OEM Number(s):3353100Specs$114.43 -
Drag Specialties - 07110242 - Oil Line - Return - Chrome - Softail
Drag Specialties
$111.25Drag Specialties - 07110242 - Oil Line - Return - Chrome - SoftailFeaturesOEM-style replacement componentAccepts all OEM connectors and retainersReplacement Part for OEM Number(s):3353107Specs$111.25 -
Drag Specialties - 07110241 - Oil Line - Feed - Chrome - Softail
Drag Specialties
$44.47Drag Specialties - 07110241 - Oil Line - Feed - Chrome - SoftailFeaturesOEM-style replacement componentAccepts all OEM connectors and retainersReplacement Part for OEM Number(s):3352507Specs$44.47 -
S&S Cycle - 900-1186 - Billet Head Breather Kit - Anodized Blue - M8
S&S Cycle
$299.95S&S Cycle - 900-1186 - Billet Head Breather Kit - Anodized Blue - M8Features6061 billet aluminum head breathers replace the OEM plastic partsDual O-ring for a better seal in the headUnique Labyrinth...$299.95 -
Namz - NOSC-VO1-P - Oil Sending Unit Cover - Vertical - Milled - Polished
Namz Custom Cycle
$59.95Namz - NOSC-VO1-P - Oil Sending Unit Cover - Vertical - Milled - PolishedFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs<$59.95 -
Namz - NOSC-SO1-P - Oil Sending Unit Cover - Vertical - Smooth - Polished
Namz Custom Cycle
$59.95Namz - NOSC-SO1-P - Oil Sending Unit Cover - Vertical - Smooth - PolishedFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs<$59.95 -
Namz - NOSC-HO1-P - Oil Sending Unit Cover - Horizontal - Milled - Polished
Namz Custom Cycle
$59.95Namz - NOSC-HO1-P - Oil Sending Unit Cover - Horizontal - Milled - PolishedFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs$59.95 -
Namz - NOSC-VO1-B - Oil Sending Unit Cover - Vertical - Milled - Black
Namz Custom Cycle
$59.95Namz - NOSC-VO1-B - Oil Sending Unit Cover - Vertical - Milled - BlackFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs$59.95 -
Namz - NOSC-SO1-B - Oil Sending Unit Cover - Horizontal - Smooth - Black
Namz Custom Cycle
$59.95Namz - NOSC-SO1-B - Oil Sending Unit Cover - Horizontal - Smooth - BlackFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs$59.95 -
Namz - NOSC-HO1-B - Oil Sending Unit Cover - Horizontal - Milled - Black
Namz Custom Cycle
$59.95Namz - NOSC-HO1-B - Oil Sending Unit Cover - Horizontal - Milled - BlackFeaturesFits over sensor and connectorMade from billet aluminumMade in the USASpecs$59.95 -
Kb Performance - KB426C.STD - Piston Kit - 3.750" Standard - 10.5:1 CR - 88" Twin Cam
KB Performance
$295.95Kb Performance - KB426C.STD - Piston Kit - 3.750" Standard - 10.5:1 CR - 88" Twin CamFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit...$295.95 -
Kb Performance - KB426C.020 - Piston Kit - 3.750" +0.020" - 10.5:1 CR - 88" Twin Cam
KB Performance
$295.95Kb Performance - KB426C.020 - Piston Kit - 3.750" +0.020" - 10.5:1 CR - 88" Twin CamFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and...$295.95 -
Kb Performance - KB425C.030 - Piston Kit - 3.750" +0.030" - 8.8:1 CR - 88" Twin Cam
KB Performance
$287.95Kb Performance - KB425C.030 - Piston Kit - 3.750" +0.030" - 8.8:1 CR - 88" Twin CamFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and...$287.95 -
Kb Performance - KB425C.020 - Piston Kit - 3.750" +0.020" - 8.8:1 CR - 88" Twin Cam
KB Performance
$287.95Kb Performance - KB425C.020 - Piston Kit - 3.750" +0.020" - 8.8:1 CR - 88" Twin CamFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and...$287.95 -
Kb Performance - KB425C.010 - Piston Kit - 3.750" +0.010" - 8.8:1 CR - 88" Twin Cam
KB Performance
$287.95Kb Performance - KB425C.010 - Piston Kit - 3.750" +0.010" - 8.8:1 CR - 88" Twin CamFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and...$287.95 -
Hastings - 2M6164030 - Piston Rings - 3.498" + 0.030" - Evolution Big Twin
Hastings
$52.52Hastings - 2M6164030 - Piston Rings - 3.498" + 0.030" - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$52.52 -
Hastings - 2M6164020 - Piston Rings - 3.498" + 0.020" - Evolution Big Twin
Hastings
$55.21Hastings - 2M6164020 - Piston Rings - 3.498" + 0.020" - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$55.21 -
Hastings - 2M6164010 - Piston Rings - 3.498" + 0.010" - Evolution Big Twin
Hastings
$52.52Hastings - 2M6164010 - Piston Rings - 3.498" + 0.010" - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$52.52 -
Hastings - 2M6164 - Piston Rings - 3.498" Standard - Evolution Big Twin
Hastings
$52.52Hastings - 2M6164 - Piston Rings - 3.498" Standard - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$52.52 -
Hastings - 2M6127020 - Piston Rings - 3.498" + 0.020" - 80" Big Twin
Hastings
$87.21Hastings - 2M6127020 - Piston Rings - 3.498" + 0.020" - 80" Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel FaceHelps...$87.21 -
Hastings - 2M6127040 - Piston Rings - 3.498" + 0.040" - 80" Big Twin
Hastings
$87.21Hastings - 2M6127040 - Piston Rings - 3.498" + 0.040" - 80" Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel FaceHelps...$87.21 -
Hastings - 2M6127010 - Piston Rings - 3.498" + 0.010" - 80" Big Twin
Hastings
$87.21Hastings - 2M6127010 - Piston Rings - 3.498" + 0.010" - 80" Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel FaceHelps...$87.21 -
Hastings - 2M6164005 - Piston Rings - 3.498" + 0.005" - Evolution Big Twin
Hastings
$52.52Hastings - 2M6164005 - Piston Rings - 3.498" + 0.005" - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$52.52 -
Feuling Parts - 1462 - Cam Kit - 487 - Chain Drive - Race Series Lifters - M8
Feuling
$699.95Feuling Parts - 1462 - Cam Kit - 487 - Chain Drive - Race Series Lifters - M8Features487 Reaper Chain Drive Camshaft, Cam Installation Kit and Race Series Lifters are included in this kit487 Reaper...$699.95 -
Hastings - 2M6164040 - Piston Rings - 3.498" + 0.040" - Evolution Big Twin
Hastings
$55.21Hastings - 2M6164040 - Piston Rings - 3.498" + 0.040" - Evolution Big TwinFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel...$55.21 -
Cometic - C10348-052 - Head Gasket - 4.500" - .052" - 4.515" ID Coolant - MLX - M8
Cometic
$86.00Cometic - C10348-052 - Head Gasket - 4.500" - .052" - 4.515" ID Coolant - MLX - M8FeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will...$86.00 -
Wiseco - 3497X - Ring Set
Wiseco
$52.95Wiseco - 3497X - Ring SetFeaturesInclude rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - K1716 - Piston Kit - +0.020" - Evolution Big Twin 1340 cc
Wiseco
$447.95Wiseco - K1716 - Piston Kit - +0.020" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$447.95 -
Wiseco - K1668 - Piston Kit - +0.030" - Evolution Big Twin 1340 cc
Wiseco
$447.95Wiseco - K1668 - Piston Kit - +0.030" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$447.95 -
Wiseco - K1675 - Piston Kit - +0.005" - Evolution Big Twin 1340 cc
Wiseco
$447.95Wiseco - K1675 - Piston Kit - +0.005" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$447.95 -
Wiseco - K1667 - Piston Kit - +0.020" - Evolution Big Twin 1340 cc
Wiseco
$447.95Wiseco - K1667 - Piston Kit - +0.020" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$447.95 -
Wiseco - K1665 - Piston Kit - Standard - Evolution Big Twin 1340 cc
Wiseco
$447.95Wiseco - K1665 - Piston Kit - Standard - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips...$447.95 -
Wiseco - K1666 - Piston Kit - +0.010" - Evolution Big Twin 1340 cc
Wiseco
$487.94Wiseco - K1666 - Piston Kit - +0.010" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$487.94 -
Wiseco - K1642 - Piston Kit - +0.020" - Evolution Big Twin 1340 cc
Wiseco
$422.95Wiseco - K1642 - Piston Kit - +0.020" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$422.95 -
Wiseco - K1641 - Piston Kit - +0.010" - Evolution Big Twin 1340 cc
Wiseco
$422.95Wiseco - K1641 - Piston Kit - +0.010" - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$422.95 -
Wiseco - 3527X - Ring Set
Wiseco
$52.95Wiseco - 3527X - Ring SetFeaturesInclude rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3517X - Ring Set
Wiseco
$52.95Wiseco - 3517X - Ring SetFeaturesInclude rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95
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.