Engine
8832 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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Wiseco - K1682 - Piston Kit - Standard - 883 XL Bored to 1200 cc
Wiseco
$488.04Wiseco - K1682 - Piston Kit - Standard - 883 XL Bored to 1200 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$488.04 -
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 - K1643 - Piston Kit - +0.030" - Evolution Big Twin 1340 cc
Wiseco
$460.38Wiseco - K1643 - 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...$460.38 -
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 - K1662 - Piston Kit - +0.020" - XL 1200 | Buell with OEM 1200 Heads
Wiseco
$447.95Wiseco - K1662 - Piston Kit - +0.020" - XL 1200 | Buell with OEM 1200 HeadsFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer...$447.95 -
Wiseco - K1660 - Piston Kit - Standard - XL 1200 | Buell with OEM 1200 Heads
Wiseco
$447.95Wiseco - K1660 - Piston Kit - Standard - XL 1200 | Buell with OEM 1200 HeadsFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer...$447.95 -
Wiseco - K1656 - Piston Kit - +0.010 - 883 XL Bored to 1200 cc
Wiseco
$487.94Wiseco - K1656 - Piston Kit - +0.010 - 883 XL Bored to 1200 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 - K1655 - Piston Kit - Standard - 883 XL Bored to 1200 cc
Wiseco
$409.95Wiseco - K1655 - Piston Kit - Standard - 883 XL Bored to 1200 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and...$409.95 -
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 - K1640 - Piston Kit - Standard - Evolution Big Twin 1340 cc
Wiseco
$435.36Wiseco - K1640 - Piston Kit - Standard - Evolution Big Twin 1340 ccFeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips...$435.36 -
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 -
Wiseco - 3507X - Ring Set
Wiseco
$52.95Wiseco - 3507X - Ring SetFeaturesInclude rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3504X - Ring Set
Wiseco
$52.95Wiseco - 3504X - Ring SetFeaturesInclude rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3885VMF - Ring Set
Wiseco
$52.95Wiseco - 3885VMF - Ring SetFeaturesReplacement ring set for pistonsWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3875VMF - Ring Set
Wiseco
$52.95Wiseco - 3875VMF - Ring SetFeaturesReplacement ring set for pistonsWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 4250VMF - Ring Set
Wiseco
$52.95Wiseco - 4250VMF - Ring SetFeaturesReplacement ring set for pistonsWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 4125VMF - Ring Set
Wiseco
$52.95Wiseco - 4125VMF - Ring SetFeaturesReplacement ring set for pistonsWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3895VM - Piston Ring Set
Wiseco
$52.95Wiseco - 3895VM - Piston Ring SetFeaturesReplacement rings include rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3885VM - Piston Ring Set
Wiseco
$52.95Wiseco - 3885VM - Piston Ring SetFeaturesReplacement rings include rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3875VM - Piston Ring Set
Wiseco
$52.95Wiseco - 3875VM - Piston Ring SetFeaturesReplacement rings include rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3937VMF - Ring Set
Wiseco
$52.95Wiseco - 3937VMF - Ring SetFeaturesReplacement ring set for pistonsWiseco rings fit only Wiseco pistons.Specs$52.95 -
Wiseco - 3875XK - Piston Ring Set
Wiseco
$46.95Wiseco - 3875XK - Piston Ring SetFeaturesReplacement rings include rings for one piston onlyWiseco rings fit only Wiseco pistons.Specs$46.95 -
Wossner - K4083D478-2 - Piston Kit - 4.500" Stroke - 120 CID - M8 CVO
Wossner
$448.00Wossner - K4083D478-2 - Piston Kit - 4.500" Stroke - 120 CID - M8 CVOFeaturesCrown is anodized to improve resistance to extreme heatTested and proven to improve thermal diffusivity by up to...$448.00 -
Wossner - K4074D554-2 - Piston Kit - 4.375" Stroke - 119 CID - M8
Wossner
$448.00Wossner - K4074D554-2 - Piston Kit - 4.375" Stroke - 119 CID - M8FeaturesCrown is anodized to improve resistance to extreme heatTested and proven to improve thermal diffusivity by up to 10%Hardcoat...$448.00 -
Wossner - K4084D478-2 - Piston Kit - 4.375" Stroke - 117 CID - M8
Wossner
$448.00Wossner - K4084D478-2 - Piston Kit - 4.375" Stroke - 117 CID - M8FeaturesCrown is anodized to improve resistance to extreme heatTested and proven to improve thermal diffusivity by up to 10%Hardcoat...$448.00 -
Wossner - K4082D200-2 - Piston Kit - 4.500" Stroke - 114 CID - M8 CVO
Wossner
$448.00Wossner - K4082D200-2 - Piston Kit - 4.500" Stroke - 114 CID - M8 CVO Features Crown is anodized to improve resistance to extreme heat Tested and proven to improve thermal diffusivity by up to...$448.00 -
Wossner - K4081DA-2 - Piston Kit - 4.375" Stroke - 107 CID - M8
Wossner
$448.00Wossner - K4081DA-2 - Piston Kit - 4.375" Stroke - 107 CID - M8FeaturesCrown is anodized to improve resistance to extreme heatTested and proven to improve thermal diffusivity by up to 10%Hardcoat...$448.00 -
Wiseco - K2793 - Piston Kit - 3.885" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin Cam
Wiseco
$576.95Wiseco - K2793 - Piston Kit - 3.885" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin CamFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion...$576.95 -
Wiseco - K2792 - Piston Kit - 3.875" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin Cam
Wiseco
$576.95Wiseco - K2792 - Piston Kit - 3.875" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin CamFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion...$576.95 -
Wiseco - K2789 - Piston Kit - 3.885" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin Cam
Wiseco
$576.95Wiseco - K2789 - Piston Kit - 3.885" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin CamFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion...$576.95 -
Wiseco - K2802 - Piston Kit - M8
Wiseco
$576.95Wiseco - K2802 - Piston Kit - M8FeaturesFeature ArmorX™ piston coating for superior protection in extreme conditions and reduced wearArmorFit™ skirt coating auto-adjusts to the cylinder wall so...$576.95 -
Wiseco - K2806 - Piston Kit - M8 - 121" - 4.135" Bore
Wiseco
$576.95Wiseco - K2806 - Piston Kit - M8 - 121" - 4.135" BoreFeaturesFeature ArmorX™ piston coating for superior protection in extreme conditions and reduced wearArmorFit™ skirt coating auto-adjusts to the...$576.95 -
Wiseco - K2788 - Piston Kit - 3.875" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin Cam
Wiseco
$576.95Wiseco - K2788 - Piston Kit - 3.875" - 103 Cubic Inch | 96 Cubic Inch Bored to 103 Cubic Inch - Twin CamFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion...$576.95 -
Wiseco - K1757 - Piston Kit - 4.000" - 96/103 Cubic Inch Bored to 110 Cubic Inch - Twin Cam
Wiseco
$489.95Wiseco - K1757 - Piston Kit - 4.000" - 96/103 Cubic Inch Bored to 110 Cubic Inch - Twin CamFeaturesWiseco's high-tech manufacturing ensures greater operating strength and lower expansion at high...$489.95 -
Wiseco - K2804 - Piston Kit - M8 - 117" - 4.075" Bore
Wiseco
$576.95Wiseco - K2804 - Piston Kit - M8 - 117" - 4.075" BoreFeaturesFeature ArmorX™ piston coating for superior protection in extreme conditions and reduced wearArmorFit™ skirt coating auto-adjusts to the...$576.95
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.