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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Out of stock
S&S Cycle - 310-1107B - 128" Power Package Engine Performance Kit - Chain Drive
S&S Cycle
MSRP: $3,265.95$3,109.95S&S Cycle - 310-1107B - 128" Power Package Engine Performance Kit - Chain DriveFeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore...MSRP: $3,265.95$3,109.95 -
Out of stock
S&S Cycle - 310-1108A - 128" Power Package Engine Performance Kit - Gear Drive
S&S Cycle
MSRP: $3,427.95$3,359.95S&S Cycle - 310-1108A - 128" Power Package Engine Performance Kit - Gear DriveFeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore...MSRP: $3,427.95$3,359.95 -
Out of stock
S&S Cycle - 310-1101B - 128" Power Package Engine Performance Kit - Chain Drive
S&S Cycle
$3,265.95S&S Cycle - 310-1101B - 128" Power Package Engine Performance Kit - Chain DriveFeaturesBig-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required4-1/4" bore...$3,265.95 -
Out of stock
S&S Cycle - 310-1102A - 128" Power Package Engine Performance Kit - Gear Drive
S&S Cycle
MSRP: $3,460.95$3,289.95S&S Cycle - 310-1102A - 128" Power Package Engine Performance Kit - Gear Drive Features Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight with no case machining required 4-1/4"...MSRP: $3,460.95$3,289.95 -
Out of stock
Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XL
Kibblewhite
$37.55Kibblewhite - 20-20090 - Valve - Intake - 1.585" - Standard - 883XLFeaturesOne-piece stainless-steel, stellite-tipped valve is fortified by a special nitrided process with .002" depth and .0002"...$37.55 -
Out of stock
Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big Bore
KB Performance
$307.95Kb Performance - KB411.010 - Piston Kit - 3.875" +0.010" - 10.5:1 CR - 95" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter...$307.95 -
Out of stock
Kb Performance - KB272.010 - Piston Kit - 3.498" +0.010" - 10.0:1 CR - XL883 to 1200 Conversion
KB Performance
$246.95Kb Performance - KB272.010 - Piston Kit - 3.498" +0.010" - 10.0:1 CR - XL883 to 1200 ConversionFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a...$246.95 -
Out of stock
Kb Performance - KB305.020 - Piston Kit - Evolution
KB Performance
$246.95Kb Performance - KB305.020 - Piston Kit - EvolutionFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring...$246.95 -
Out of stock
Kb Performance - KB272.005 - Piston Kit - 3.498" +0.005" - 10.0:1 CR - XL883 to 1200 Conversion
KB Performance
$234.43Kb Performance - KB272.005 - Piston Kit - 3.498" +0.005" - 10.0:1 CR - XL883 to 1200 ConversionFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a...$234.43 -
Out of stock
Kb Performance - KB272.STD - Piston Kit - 3.498" Standard - 10.0:1 CR - XL883 to 1200 Conversion
KB Performance
$234.43Kb Performance - KB272.STD - Piston Kit - 3.498" Standard - 10.0:1 CR - XL883 to 1200 ConversionFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a...$234.43 -
Out of stock
Kb Performance - KB266.030 - Piston Kit
KB Performance
$246.95Kb Performance - KB266.030 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined...$246.95 -
Out of stock
Kb Performance - KB266.010 - Piston Kit
KB Performance
$246.95Kb Performance - KB266.010 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined...$246.95 -
Out of stock
Kb Performance - KB295.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - XL1200
KB Performance
$227.95Kb Performance - KB295.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer...$227.95 -
Out of stock
Kb Performance - KB295.020 - Piston Kit - 3.498" +0.020" - 9.0:1 CR - XL1200
KB Performance
$227.95Kb Performance - KB295.020 - Piston Kit - 3.498" +0.020" - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer...$227.95 -
Out of stock
Kb Performance - KB295.005 - Piston Kit - 3.498" +0.005" - 9.0:1 CR - XL1200
KB Performance
$216.29Kb Performance - KB295.005 - Piston Kit - 3.498" +0.005" - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer...$216.29 -
Out of stock
Kuryakyn - KUR8136 - Oil Pressure Sending Unit Cover - 80" Evo Big Twin
Kuryakyn
$44.99Kuryakyn - KUR8136 - Oil Pressure Sending Unit Cover - 80" Evo Big TwinFeaturesHigh-quality, chromed, die-cast coverRequires the sending unit to be removed for installationFor single-terminal...$44.99 -
Out of stock
Kibblewhite - 20-23850 - Dual Spring Kit - M8
Kibblewhite
$528.57Kibblewhite - 20-23850 - Dual Spring Kit - M8FeaturesDesigned for maximum performanceFeatures interference-wound, double-chrome silicone springs; heat-treated steel base washersAll spring kits should...$528.57 -
Out of stock
Kibblewhite - 20-23950 - Beehive Shim Spring Kit
Kibblewhite
$471.02Kibblewhite - 20-23950 - Beehive Shim Spring KitFeaturesBeehive Shim Spring Kit for M8 enginesSpecsUnits$471.02 -
Out of stock
Kibblewhite - 20-23900 - Beehive Shim Spring Kit
Kibblewhite
$422.95Kibblewhite - 20-23900 - Beehive Shim Spring KitFeaturesBeehive Shim Spring Kit for M8 enginesSpecsUnits$422.95 -
Out of stock
Kibblewhite - 10-HC510 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC510 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as...$14.47 -
Out of stock
Kibblewhite - 10-HC447 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC447 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as...$14.47 -
Out of stock
Kibblewhite - 10-HC445 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC445 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as...$14.47 -
Out of stock
Kibblewhite - 10-HC440 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC440 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as...$14.47 -
Kibblewhite - 10-HC360 - Valve Seat
Kibblewhite
$14.47Kibblewhite - 10-HC360 - Valve SeatFeaturesCopper-based material designed specifically for use with titanium valves in high performance applicationsGive the seat excellent thermal characteristics as...$14.47 -
Out of stock
Kibblewhite - 20-23650 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XR
Kibblewhite
$373.06Kibblewhite - 20-23650 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XRFeaturesDesigned for its specific application, taking into account several critical parameters...$373.06 -
Out of stock
Kibblewhite - 20-23600 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XR
Kibblewhite
$226.58Kibblewhite - 20-23600 - Valve Spring Kit - 0.675" Lift - 88"/96"/103" Twin Cam | Buell | XL | XRFeaturesDesigned for its specific application, taking into account several critical parameters...$226.58 -
Out of stock
Kb Performance - KB576LCA.STD - Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8
KB Performance
$446.95Kb Performance - KB576LCA.STD - Piston Kit - 4.250" Standard - 11.4:1 CR - 124" Big Bore - 107" M8FeaturesUpdates stock 107\Valve pockets are designed to accept up to +4.00 mm oversized intake and...$446.95 -
Out of stock
Kb Performance - KB661LCA.010 - Piston Kit - 4.00" +0.010" - 10.0:1 CR - 96"-103" Twin Cam Bored to 110 ci w/SE 95 cc Heads
KB Performance
$442.95Kb Performance - KB661LCA.010 - Piston Kit - 4.00" +0.010" - 10.0:1 CR - 96"-103" Twin Cam Bored to 110 ci w/SE 95 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness of...$442.95 -
Out of stock
Kb Performance - KB542LCA.STD - Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8
KB Performance
$427.95Kb Performance - KB542LCA.STD - Piston Kit - 4.125" Standard - 11.0:1 CR - 114"/117" Bored to 120" - M8FeaturesNew skirt coating technology is applied to the entire thickness of the piston-to-wall...$427.95 -
Out of stock
Kb Performance - KB660LCA.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads
KB Performance
$390.86Kb Performance - KB660LCA.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness...$390.86 -
Out of stock
Kb Performance - KB660C.005 - Piston Kit - 3.875" +0.005" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads
KB Performance
$322.95Kb Performance - KB660C.005 - Piston Kit - 3.875" +0.005" - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc HeadsFeaturesOffset pin design for quiet operationEach kit contains two...$322.95 -
Out of stock
Kb Performance - KB909LCA.STD - Piston Kit - 3.875" Standard - 11.0:1 CR - 103" Twin Cam | Big Bore 96" to 103" w/ 85 cc Heads
KB Performance
$410.95Kb Performance - KB909LCA.STD - Piston Kit - 3.875" Standard - 11.0:1 CR - 103" Twin Cam | Big Bore 96" to 103" w/ 85 cc HeadsFeaturesNew skirt coating technology is applied to the entire thickness...$410.95 -
Out of stock
Kb Performance - KB661C.005 - Piston Kit - 4.000" +0.005" - 10.0:1 CR - 96"/103" Twin Cam Bored to 110 CI w/SE 95 cc Heads
KB Performance
$322.95Kb Performance - KB661C.005 - Piston Kit - 4.000" +0.005" - 10.0:1 CR - 96"/103" Twin Cam Bored to 110 CI w/SE 95 cc HeadsFeaturesOffset pin design for quiet operationEach kit contains two pistons,...$322.95 -
Out of stock
Kb Performance - KB258.STD - Piston Kit
KB Performance
$222.43Kb Performance - KB258.STD - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined...$222.43 -
Out of stock
Kb Performance - KB258.040 - Piston Kit
KB Performance
$222.43Kb Performance - KB258.040 - Piston KitFeaturesManufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloyAllow a tighter fit and longer piston and ring lifeDiamond-machined...$222.43 -
Out of stock
Kb Performance - KB922C.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - Conversion to 1200 - XL883
KB Performance
$285.57Kb Performance - KB922C.STD - Piston Kit - 3.498" Standard - 9.0:1 CR - Conversion to 1200 - XL883FeaturesOffset pin design for quiet operationEach kit contains two pistons, pins, spiral-lock pin...$285.57 -
Out of stock
Kb Performance - KB409C.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Twin Cam Big Bore
KB Performance
$236.95Kb Performance - KB409C.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum...$236.95 -
Out of stock
Kibblewhite - 20-21032 - Valve Guide -Exhaust - 0.4770" OD - M8
Kibblewhite
$26.89Kibblewhite - 20-21032 - Valve Guide -Exhaust - 0.4770" OD - M8FeaturesPrecision-machined from copper based C63000 nickel-aluminum bronzeCompatible with no-lead fuel and accept any type of valve-stem...$26.89 -
Out of stock
Kibblewhite - 20-21205 - Beehive Spring Kit - 0.550" Lift - M8 | CVO
Kibblewhite
MSRP: $416.95$416.13Kibblewhite - 20-21205 - Beehive Spring Kit - 0.550" Lift - M8 | CVOFeaturesProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot...MSRP: $416.95$416.13 -
Out of stock
Kibblewhite - 20-21000 - Beehive Spring Kit - 0.465" Lift - M8 | CVO
Kibblewhite
$313.38Kibblewhite - 20-21000 - Beehive Spring Kit - 0.465" Lift - M8 | CVOFeaturesProgressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot...$313.38
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.