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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Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models
Colony Machine
$11.95Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models Features: Split locknuts with 9/32"-32 thread Made in the U.S.A.$11.95 -
Drag Specialties - Rocker Box Kit - Fits '99-'17 Twin Cam Models
Drag Specialties
$326.43Drag Specialties Rocker Box Kit Fits '99-'17 Twin Cam Models With the Drag Rock Box Kit you will get a perfect, leakproof fit! Available in Chrome. Sold Each. Features: Quality construction with...$326.43 -
Jims - Rocker Box Alignment Screws
Jims
$103.10Jims Rocker Box Alignment Screws These alignment screws will ensure that the rocker cover alignment is right on. Misalignment can compromise the sealing surface and looks bad. They can also cause...$103.10 -
Kpmi - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem Valves
Kibblewhite
$184.99Kpmi - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem ValvesFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and...$184.99 -
V-Twin - 42-0118 - Chrome Cam Cover - Fits 1993-1998 Harley-Davidson FLT, FXST, 1993-1994 FXR, 1993-1998 FLST, FXD
V-Twin Mfg
MSRP: $72.13$71.41Chrome cam covers kit over stock cam cases on Big Twins. No need to remove the cam case or disturb the cam or gears. Covers are held in place by existing screws. Fits:FLT 1993-1998FXST 1993-1998FXR...MSRP: $72.13$71.41 -
V-Twin - 17-1487 - .060 Cam Lock Washers - Fits 1986-1999 Harley-Davidson FLT, FLST, 1986-1994 FXR, 1986-1999 FXST
V-Twin Mfg
$34.72.060 cam lock washers with side tab. Fits:FLT 1986-1999FLST 1986-1999FXR 1986-1994FXST 1986-1999Additional Information UOM5 -$34.72 -
V-Twin - 12-0001 - Big Twin Compensator Shim - Fits 2007-2016 Harley-Davidson FLST, 2011-2013 FLT, 2009-2013 FLHXXX, 2007-2016 FXST, 2006-2013 FXD
V-Twin Mfg
$13.79Big Twin compensator shim is 0.031" thick. Fits:FLST 2007-2016FLT 2011-2013FLHXXX 2009-2013FXST 2007-2016FXD 2006-2013Additional Information$13.79 -
V-Twin - 10-0487 - Cam Chain Guide - Fits 1999-2006 Harley-Davidson FLST, FXST, FLT, 1999-2005 FXD
V-Twin Mfg
$11.81Cam chain guide for TC-88 models is made to OEM specifications and is constructed of ABS plastic.The design of the cam chain guide helps reduce premature wearing of the chain and the guide. Fits:FLST...$11.81 -
S&S Cycle - 33-5058 - Camshaft - 600 - Evolution Big Twin
S&S Cycle
$255.95S&S Cycle - 33-5058 - Camshaft - 600 - Evolution Big Twin Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each...$255.95 -
S&S Cycle - 92-1412 - Piston Kit - For 113" Super Sidewinder® - 4.000" - +0.020"
S&S Cycle
$484.95S&S Cycle - 92-1412 - Piston Kit - For 113" Super Sidewinder® - 4.000" - +0.020"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor...$484.95 -
S&S Cycle - 106-0964 - Complete Gasket Kit - 4-1/8" - EVO Big Twin
S&S Cycle
$225.95S&S Cycle - 106-0964 - Complete Gasket Kit - 4-1/8" - EVO Big TwinFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be purchased...$225.95 -
Kibblewhite - 20-20364 - Valve Spring Kit - 0.600" Lift - 88"/96"/103" Twin Cam | Buell | XL | XR
Kibblewhite
$152.98Kibblewhite - 20-20364 - Valve Spring Kit - 0.600" Lift - 88"/96"/103" Twin Cam | Buell | XL | XRFeaturesDesigned for its specific application, taking into account several critical parameters...$152.98 -
James Gasket - JGI-25244-99-K - Cam Gear Quick Change - Twin Cam
James Gaskets
$56.95James Gasket - JGI-25244-99-K - Cam Gear Quick Change - Twin CamFeaturesKit includes all necessary gaskets, seals, O-rings and cork washers for doing a cam changeSpecs$56.95 -
Feuling Parts - 3001 - Cylinder Stud Kit - Twin Cam
Feuling
$169.95Feuling Parts - 3001 - Cylinder Stud Kit - Twin CamFeaturesPrecision J-form threads for optimum engagement, to prevent galling and promote more consistent torque loadingSuperior in strength and...$169.95 -
Figurati Designs - FD72-TC-5H-BLK - Timing Cover - 5 Hole - Green Line American Flag - Black
Figurati Designs
$132.95Figurati Designs - FD72-TC-5H-BLK - Timing Cover - 5 Hole - Green Line American Flag - BlackFeaturesTiming Cover for Harley Davidson applicationsMade from 316L stainless steel, polished to a perfect...$132.95 -
Feuling Parts - 7086 - Conversion Oil System - OE+ - Twin Cam
Feuling
$639.95Feuling Parts - 7086 - Conversion Oil System - OE+ - Twin CamFeaturesUpgrade to the stock oiling system, delivering increased oil pressure and return scavenging volumes from billet oil pump and...$639.95 -
Feuling Parts - 7010 - Oil Pump - OE+ - Twin Cam
Feuling
$319.95Feuling Parts - 7010 - Oil Pump - OE+ - Twin CamFeaturesMade of 6061 billet aluminum with high-flow 2" chromoly gerotor gearsOil pumps increase oil pressure and scavenge return volumeFeuling® OE+...$319.95 -
Feuling Parts - 8041 - Camshaft/Sprocket Thrust Washer Kit - Fits 2017-2025 M-Eight (except 121" VVT motors), 2007-2017 Twin Cam
Feuling
$45.95Feuling Parts - 8041 - Camshaft/Sprocket Thrust Washer KitFeaturesFits stock and stock replacement camshafts and conversion camshaft upgrades on '99-'06 engines to the hydraulic chain tensioner...$45.95 -
Feuling Parts - 8082 - Hydraulic Tensioner Kit - OE Style Cams - With Cam Position Sensor - Twin Cam '99-'01
Feuling
$399.95Feuling Parts - 8082 - Hydraulic Tensioner Kit - OE Style Cams - With Cam Position Sensor - Twin Cam '99-'01FeaturesThis kit is designed for installing or replacing hydraulic cam chain tensioners on...$399.95 -
Fuel-Tool - MC200 - Replacement O-Ring
Fuel Tool
$7.95Fuel-Tool - MC200 - Replacement O-RingFeaturesEliminates the need for replacing expensive check valve and fuel line when only an O-ring is neededMade from long-lasting, high-quality Dupont®...$7.95 -
Cometic - C10305 - Oil Pump Seal
Cometic
$10.95Cometic - C10305 - Oil Pump SealFeaturesReplacement Oil Pump SealReplacement Part for OEM Number(s): 62400205Specs$10.95 -
Andrews - 271100 - High-Lift Upper Spring Collars - Fits 1966-1984 Shovelhead
Andrews
$53.95Andrews - 271100 - High-Lift Upper Spring CollarsFeaturesCams with .600 lift can easily be accommodated when used with high-lift springsMade from T-6 aluminum, collars are lightweight, hard-coated...$53.95 -
S&S Cycle - 31-2321 - 3/8-16 x 6.680" Cylinder Studs - Fits '84-'99 Evolution Big Twin Models
S&S Cycle
$99.95S&S Cycle - 31-2321 - 3/8-16 x 6.680" Cylinder Studs - Fits '84-'99 Evolution Big Twin Models Fits: '84-'99 Evolution Big Twin Models. Full year/model list is on the Fitment tab. Features: Sold as a...$99.95 -
Colony - 8703-2 Relief Valve Plug Kit fits '81-'84 Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - 8703-2 Relief Valve Plug Kit fits '81-'84 Big Twin Models (OEM #26263-80) Features: Plug and plug kits designed for a variety of Harley-Davidson® oil systems Complete with washers (or...$10.95 -
James Gaskets - Retaining Rings for Exhaust Flange Kit
James Gaskets
$3.95James Gasket Retaining Rings for Exhaust Flange Kit These retaining rings are replacement parts for the Drag Specialties Exhaust Flange Kit for Harley Evo Big Twin 1984-Up (DBC-3480).$3.95 -
Colony - Ignition Cover Timer Stud Kit fits '70-'79 Big Twin as, '70-'79 Sportster Models (OEM #32601-78)
Colony Machine
$13.95Colony - Ignition Cover Timer Stud Kit fits '70-'79 Big Twin as, '70-'79 Sportster Models (OEM #32601-78) Features: Reproduction of original ignition timer cover studs Made in the U.S.A.$13.95 -
Drag Specialties - Cam Covers - fits Harley Twin Cam - Black or Chrome (See Desc.)
Drag Specialties
$129.27Drag Specialties Cam Covers for Harley Twin Cam The Drag Specialties Cam Covers are made to be tough and durable. As always Drag uses only high quality material to construct their products and...$129.27 -
Drag Specialties - Spherical Radius Points Cover fits '70-'99 Big Twin (Exc. Twin Cam) and '71-'21 Sportster Models (Exc. '21 Sportster S/RH1250S Models)
Drag Specialties
$24.33Drag Specialties - Spherical Radius Points Cover fits '70-'99 Big Twin (Exc. Twin Cam) and '71-'21 Sportster Models (Exc. '21 Sportster S/RH1250S Models) Available in your choice of a chrome, flat...$24.33 -
James Gasket - Rocker Cover Gasket fits '99-'17 Twin Cam Models (OEM #17386-99A)
James Gaskets
$29.95James Gasket - Rocker Cover Gasket fits '99-'17 Twin Cam Models (OEM #17386-99A) Features: Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal co$29.95 -
Hastings - 2M4941 - Piston Rings - 3.875" Standard - 95"/103" Big Bore - Twin Cam
Hastings
$102.95Hastings - 2M4941 - Piston Rings - 3.875" Standard - 95"/103" Big Bore - Twin CamFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are...$102.95 -
James Gasket - Intake Manifold Gasket Kit fits '66-'84 Shovelhead, '57-'78 Sportster Models w/ Bendix/Keihin (Butterfly Style (OEM #27002-57))
James Gaskets
$15.95James Gasket - Intake Manifold Gasket Kit fits '66-'84 Shovelhead, '57-'78 Sportster Models w/ Bendix/Keihin (Butterfly Style (OEM #27002-57)) Features: Kit contains carb-to-intake seal and two...$15.95 -
Thrashin Supply Co. - Harley Points Cover, Dished
Thrashin Supply
$64.95Thrashin Supply Co. Dished Points Cover for Harley Twin Cam Models The Thrashin Supply Co. Dished Points Cover is made of tough billet aluminum. Not only does this look super clean and sleek but...$64.95 -
Drag Specialties - Spherical Radius Points Cover fits '99-'17 Twin Cam Models
Drag Specialties
$28.57 - $29.63Drag Specialties - Spherical Radius Points Cover fits '99-'17 Twin Cam Models Available in your choice of a chrome, flat black or wrinkle black finish. Features Beautiful radiused points cover...$28.57 - $29.63 -
V-Twin - Black Nose Cone Cam Cover fits '73-'93 Big Twin Models OEM #25268-84A
V-Twin Mfg
$215.23V-Twin - Black Nose Cone Cam Cover fits '73-'93 Big Twin Models OEM #25268-84A V-Twin's Nose Cone Cam Cover is designed to fit Big Twin Models. The bushings are installed and a seal is included...$215.23 -
Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model
Feuling
$399.95Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model These cylinder head breathers are constructed from billet 6061 aluminum with square surfaces, guaranteeing outstanding umbrella...$399.95 -
Feuling - Lifter Block Dress Up Fastener Bolt Kit fits '99-'17 Twin Cam Models (8 Pieces)
Feuling
$39.95Feuling - Lifter Block Dress Up Fastener Bolt Kit fits '99-'17 Twin Cam Models (8 Pieces) This kit features precision-rolled threads for the utmost engagement in order to stop galling and deliver...$39.95 -
V-Twin - Chrome Top Engine Mount Stabilizer fits '92-'04 Dyna Models
V-Twin Mfg
$224.14V-Twin - Chrome Top Engine Mount Stabilizer fits '92-'04 Dyna Models V-Twin's Chrome Finish Top Motor Mount Stabilizer Kit comes with adjustable stabilizer links and all necessary hardware to ensure...$224.14 -
Feuling - Inner Cam Bearing fits '17-'22 M8 Model (Repl. OEM # 9215)
Feuling
$19.95Feuling - Inner Cam Bearing fits '17-'22 M8 Model (Repl. OEM # 9215) Feuling's bearings are heay-duty full-component style, built to accept the higher loads and demands of performance engines...$19.95 -
S&S Cycle - Quickee Pushrod Kit w/ Chrome Covers for Harley Twin Cam 1999-2017
S&S Cycle
$310.27S&S Quickee Pushrod Kit w/ Chrome Covers for Harley Twin Cam 1999-2017 Kits include four S&S Quickee pushrods, four pushrod covers, O-rings Pushrods are manufactured from chromoly steel for...$310.27 -
James Gasket - EVO Top End Gasket Kit fits '92-'99 80” Evolution Models (OEM #17040-92A)
James Gaskets
$141.95James Gasket - EVO Top End Gasket Kit fits '92-'99 80” Evolution Models (OEM #17040-92A) Features: Top-quality gaskets, oil seals and O-rings necessary to rebuild an engine$141.95
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.