Engine
2191 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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Ciro - 70007 - Caps - Rocker Box/Bolt - Peaked - Chrome
Ciro
$39.99Ciro - 70007 - Caps - Rocker Box/Bolt - Peaked - ChromeFeaturesPrecision fit and simple press-on installationCover up old, dull or rusty boltsMade from stamped steelFor Twin Cam engines.Specs$39.99 -
S&S Cycle - Stock Heads Intake Manifold O-Ring fits '84-'16 Big Twin, '86-'16 Sportster Models (OEM #26992-99, 26995-86A)
S&S Cycle
$10.95S&S Cycle - Stock Heads Intake Manifold O-Ring fits '84-'16 Big Twin, '86-'16 Sportster Models (OEM #26992-99, 26995-86A) Features: Sold Each Made from the highest-quality materials available$10.95 -
S&S Cycle - Billet Oil Pump fits '70-'91 Big Twin Models
S&S Cycle
MSRP: $499.95$445.95S&S Cycle - Billet Oil Pump fits '70-'91 Big Twin Models Features: Kit includes an oil pump with cover, mounting bolts, supply and return gears, drive shaft with keys and snap rings, check ball...MSRP: $499.95$445.95 -
S&S Cycle - Replacement Billet Oil Pump Gasket Kit
S&S Cycle
$17.95S&S Cycle - Replacement Billet Oil Pump Gasket Kit Features: Made in the U.S.A. Fitment$17.95 -
Colony - 8931-16 Rocker Box Cover Allen Screw fits '84-'98 FXST/FLT, '86-'UP XL, '91-'98 FXD Models - Chrome
Colony Machine
$26.48Colony - 8931-16 Rocker Box Cover Allen Screw fits '84-'98 FXST/FLT, '86-'UP XL, '91-'98 FXD Models - Chrome Chrome rocker box cover allen screw kit Fitment: FXST 1984-1998 FLT 1984-1998 XL...$26.48 -
Colony - 9634-4 Chrome Oil Pump Check and Relief Valve Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models
Colony Machine
$29.45Colony - 9634-4 Chrome Oil Pump Check and Relief Valve Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models Oil pump check and relief valve plug with a chrome finish. Fitment: FLT...$29.45 -
S&S - Harley Oil Filter fits '99-Up Harley Twin Cam, '17-Up M8 - Black or Chrome
S&S Cycle
$20.95 - $23.95S&S - Harley Oil Filter (Chrome or Black) - fits '99-Up Harley Twin Cam, '17-Up M8 Features Sturdy steel canister houses the finest filtering media and internal components available Canister is...$20.95 - $23.95 -
S&S Harley Oil Filter fits '84-'99 Big Twin & '86-Up XL Sportsters - Black or Chrome
S&S Cycle
$20.95 - $23.95S&S Harley Oil Filter fits '84-'99 Big Twin & '86-Up XL Sportsters - Black or Chrome This S&S Oil Filter fits '84-'99 Big Twin & '86-Up XL Sportsters and is available in Black or...$20.95 - $23.95 -
La Choppers - Torque Cones
LA Choppers
$47.99 - $74.99LA Choppers Torque Cones LA Choppers Torque Cones available as normal torque cones, or the new Vortex design which increases back pressure to improve torque and horsepower...$47.99 - $74.99 -
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 -
James Gaskets - Pushrod Seal Kit W/ Tappet Cover Gaskets and O-Ring fits '99-'17 Twin Cam Models
James Gaskets
$19.95James Gaskets - Pushrod Seal Kit W/ Tappet Cover Gaskets and O-Ring fits '99-'17 Twin Cam Models This kit provides a simple and effective method to properly sell the right amount of seals or O-rings...$19.95 -
Colony - Ignition Cover Timer Stud Kit fits '80-'99 Big Twin, '80-'85 Sportster Models (OEM #32601-80, 32606-82)
Colony Machine
$13.95Colony - Ignition Cover Timer Stud Kit fits '80-'99 Big Twin, '80-'85 Sportster Models (OEM #32601-80, 32606-82) Features: Reproduction of original ignition timer cover studs Made in the U.S.A...$13.95 -
S&S Cycle - Quickee Pushrod Kit w/ Black Covers for Harley Twin Cam 1999-2017
S&S Cycle
$336.95S&S Quickee Pushrod Kit w/ Black 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...$336.95 -
Feuling - Cylinder Stud Kit - fits '99-'16 Twin Cam , '85-'99 Evo Big Twin
$130.95 - $159.95The Feuling Cylinder Stud Kit: The stongest studs available Feuling studs are installed to a torque spec can be reused and carry a lifetime warranty Heat-treated 8740 chrome moly studs Stock...$130.95 - $159.95 -
PC Racing - Flo® "Spin-On" Oil Filter fits '17-'23 M-Eight, '99-'17 Twin Cam, '86-'22 XL Models (Except RH Sportsters); '09-'12 XR1200
PC Racing
$159.95PC Racing - Flo® "Spin-On" Oil Filter fits '17-'23 M-Eight, '99-'17 Twin Cam, '86-'22 XL Models (Except RH Sportsters); '09-'12 XR1200 Features: Flows 7 times more than paper or synthetic filters...$159.95 -
S&S Cycle - Lower Rocker Box Gasket Kit fits '99-'17 Twin Cam OEM Rocker Boxes Used on S&S Heads
S&S Cycle
$40.95S&S Cycle - Lower Rocker Box Gasket Kit fits '99-'17 Twin Cam OEM Rocker Boxes Used on S&S Heads S&S's Lower Rocker Box Gasket Kit must be used when installing OEM stock rocker boxes on S&S heads...$40.95 -
Feuling - 12-Point Engine Fastener Cam/Pinion Shaft Bolt Kit fits '99-'17 Twin Cam Models
Feuling
$39.95Feuling - 12-Point Engine Fastener Cam/Pinion Shaft Bolt Kit fits '99-'17 Twin Cam Models This kit comes with bolts, hardened washers and a camshaft retaining ring (black oxide). The tensile...$39.95 -
Feuling - 12-Point Rocker Box Engine Fastener Kit fits '01-'16 Touring, '02-'17 Softail and '01-'17 Dyna Models
Feuling
$149.95Feuling - 12-Point Rocker Box Engine Fastener Kit fits '01-'16 Touring, '02-'17 Softail and '01-'17 Dyna Models This kit comes with rocker supports, breathers, rocker housings and moly lube (qty...$149.95 -
S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '78-'91 Harley Big Twin
S&S Cycle
$31.95S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '78-'91 Harley Big Twin Features: Master rebuild kit for S&S oil pump. Made in the U$31.95 -
Trask - TM-017-RK - Assault Cam Cover Repair Kit - Twin Cam
Trask Performance
$39.95Trask - TM-017-RK - Assault Cam Cover Repair Kit - Twin CamFeaturesIncludes everything to repair Trask Assault Series Cam CoversMade in the USACam covers (sold separately).Specs$39.95 -
Feuling Parts - 2074 - Inner Cam Bearing - Big Twin
Feuling
$18.95Feuling Parts - 2074 - Inner Cam Bearing - Big TwinFeaturesBearings are heavy-duty full-complement style designed to accept the higher loads and demands of performance enginesManufactured by Koyo®...$18.95 -
Eastern Motorcycle Parts - A-8977 - Bearing
Eastern Motorcycle Parts
$41.95Eastern Motorcycle Parts - A-8977 - BearingFeaturesReplacement mainshaft bearing for 5-speed Big TwinsReplacement Part for OEM Number(s): 8977Specs$41.95 -
Cometic - C9588 - Rocker Box Gasket Kit - Twin Cam
Cometic
$47.95Cometic - C9588 - Rocker Box Gasket Kit - Twin CamFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality...$47.95 -
Cometic - C10127 - Cylinder Base Gasket O-Ring Kit - 110" - Twin Cam
Cometic
$10.95Cometic - C10127 - Cylinder Base Gasket O-Ring Kit - 110" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep,...$10.95 -
Andrews - 291127 - Camshaft - EV27 - Evolution Big Twin
Andrews
$251.95Andrews - 291127 - Camshaft - EV27 - Evolution Big TwinFeaturesCapable of 6000+ rpm with stock springs and no valve floatBolt-in street cam with fast open and close rampsUses stock springs; works...$251.95 -
V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models
V-Twin Mfg
$27.12V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models Manifold seal kit is to reseal late model manifolds with CV carburetor Fitment: FLST 1990-2017 FXD 1991-2017 FXST...$27.12 -
Colony - Cylinder Base Spacer Kit fits '78-'84 Big Twin Models (OEM #16836-78)
Colony Machine
$24.95Colony - Cylinder Base Spacer Kit fits '78-'84 Big Twin Models (OEM #16836-78) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A.$24.95 -
Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors
Feuling
$99.95Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors This kit features precision-rolled threads for the utmost engagement in order to stop galling and deliver better...$99.95 -
Feuling - Gorilla Rocker Shaft and Bolt Kit fits '01-'17 Harley Model
Feuling
$269.95Feuling - Gorilla Rocker Shaft and Bolt Kit fits '01-'17 Harley Model This kit is recommended for all Twin Cam engines, especially for engines running higher lift camshafts and heavier valve...$269.95 -
S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads)
S&S Cycle
$1,489.95S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads) The cylinders featured in this kit are built with premium...$1,489.95 -
S&S Cycle - Stock Bore Cylinder and Stroker Piston Kit fits '66-'84 Shovelhead Engines
S&S Cycle
MSRP: $1,999.95$1,995.95S&S Cycle - Stock Bore Cylinder and Stroker Piston Kit fits '66-'84 Shovelhead Engines This cylinder and piston kit can be used to create 84", 86" or 88" stroker engines, or to replace the cylinders...MSRP: $1,999.95$1,995.95 -
S&S Cycle - Headbolt Kit fits '84-'17 Big Twin & '86-'03 XL Models W/ S&S Heads
S&S Cycle
$149.95S&S Cycle - Headbolt Kit fits '84-'17 Big Twin & '86-'03 XL Models W/ S&S Heads Features Set of 8 Head Bolts & Washers 4 Head Bolts: 12 pt, 3/8-16 x 3.384" x .950" TD Installation Instructions$149.95 -
James Gaskets - Complete Gasket Set fits '66-'84 Shovelhead 4-Speed; Repl. OEM #17029-70/17029-66
James Gaskets
$128.95James Gaskets - Complete Gasket Set fits '66-'84 Shovelhead 4-Speed; Repl. OEM #17029-70/17029-66 This top-quality complete gasket set comes with the gaskets, oil seals and O-rings required to...$128.95 -
James Gaskets - Cam Cover Gasket Seal Kit - fits '70-'92 FL, FLH, FLT, FXR, Softail
James Gaskets
$34.95James Gaskets Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '70-'92 FL, FLH, FLT, FXR, Softail$34.95 -
James Gaskets - Evo Motor Gasket Kit w/ MLS Head Gaskets - fits '84-'91 Evo
James Gaskets
$164.95James Gaskets Evo Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '84-'91 Evo$164.95 -
Arlen Ness - 12-Point Titanium Rocker Box Bolt Kit
Arlen Ness
$139.95Arlen Ness - 12-Point Titanium Rocker Box Bolt Kit Features: 12-Point rocker box bolt kits that are CNC machined from solid titanium Each titanium 12-Point bolt is meticulously CNC machined,...$139.95 -
Arlen Ness - 12-Point Titanium Cam Cover/Point Cover Bolt Kit
Arlen Ness
$99.95Arlen Ness - 12-Point Titanium Cam Cover/Point Cover Bolt Kit Features: 12-point bolts feature a spot drilled bolt head & lightning hole design on the bolt flange M8 kits include all needed...$99.95 -
V-Twin - 37-0585 - Rocker Box Cover Screw Cover Set Chrome - Fits 1999-2016 Harley-Davidson FLT, 1999-2017 FLST, FXST, FXD
V-Twin Mfg
$32.31Chrome screw cover set for grooved rocker box cover.Sold as a 4 piece set. Fits:FLT 1999-2016FLST 1999-2017FXST 1999-2017FXD 1999-2017Additional Information$32.31 -
V-Twin - 31-0212 - Chrome Heavy Duty Two Piece Top Motor Mount Kit - Fits 1984-1998 Harley-Davidson FXST, 1986-1998 FLST
V-Twin Mfg
$72.50Chrome heavy duty motor mount kit includes 2 mounts constructed of 1/4" thick steel, horn, and choke mount. This mount has provisions to direct mount two bolt ignition coils. Fits:FXST 1984-1998FLST...$72.50 -
V-Twin - 15-1458 - Twin Cam Rocker Box Gasket Set - Fits 1999-2016 Harley-Davidson FLT, 1999-2017 FLST, FXST, FXD
V-Twin Mfg
$72.50Rocker box gasket set, coated for maximum sealing, features a metal backing for Twin Cam models.Sold as a 4 piece set including two of the rocker cover base gaskets and two of the rocker cover...$72.50
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.