Engine
8284 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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K & N - KN-172C - Oil Filter - Chrome
K&N
$20.99K & N - KN-172C - Oil Filter - ChromeFeaturesK&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oilsA...$20.99 -
K & N - KN-170C - Oil Filter - Chrome
K&N
$19.99K & N - KN-170C - Oil Filter - ChromeFeaturesK&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oilsA...$19.99 -
K & N - KN-170 - Oil Filter - Black
K&N
$17.99K & N - KN-170 - Oil Filter - BlackFeaturesK&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oilsA...$17.99 -
Hiflofiltro - HF173C - Oil Filter - Chrome
Hiflofiltro
$17.34Hiflofiltro - HF173C - Oil Filter - ChromeFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$17.34 -
Hiflofiltro - HF174C - Oil Filter - Chrome
Hiflofiltro
$12.37Hiflofiltro - HF174C - Oil Filter - ChromeFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$12.37 -
Hiflofiltro - HF171C - Oil Filter - Chrome
Hiflofiltro
$12.34Hiflofiltro - HF171C - Oil Filter - ChromeFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$12.34 -
Hiflofiltro - HF172C - Oil Filter - Chrome
Hiflofiltro
$12.87Hiflofiltro - HF172C - Oil Filter - ChromeFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$12.87 -
Hiflofiltro - HF170C - Oil Filter - Chrome
Hiflofiltro
$12.34Hiflofiltro - HF170C - Oil Filter - ChromeFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$12.34 -
Hiflofiltro - HF171B - Oil Filter - Black
Hiflofiltro
$8.74Hiflofiltro - HF171B - Oil Filter - BlackFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$8.74 -
Hiflofiltro - HF170B - Oil Filter - Black
Hiflofiltro
$8.61Hiflofiltro - HF170B - Oil Filter - BlackFeaturesThe original HifloFiltro® factory was founded in 1955 and has been manufacturing filters for the OEM motor industry since 1963With the experience of...$8.61 -
Joker Machine - 921016L - Inspection Cover - Lucky 7
Joker Machine
$109.95Joker Machine - 921016L - Inspection Cover - Lucky 7FeaturesChrome-plated with machined silver accentsCNC machined from 6061-T6 billet aluminumIncludes mounting hardwareMade in the USASpecs$109.95 -
Joker Machine - 921016HHC - Inspection Cover - Hothead
Joker Machine
$109.95Joker Machine - 921016HHC - Inspection Cover - HotheadFeaturesChrome-plated with machined silver accentsCNC machined from 6061-T6 billet aluminumIncludes mounting hardwareMade in the USASpecs$109.95 -
Gardner-Westcott - 7-116PSE-4 - Breather Fitting - 1/4" NPT - 90 Degree
Gardner-Westcott
$13.95Gardner-Westcott - 7-116PSE-4 - Breather Fitting - 1/4" NPT - 90 DegreeFeaturesHighly polished and plated fittingsMade in the USASpecs$13.95 -
Jims - 1370 - Valve Keepers - Big Twin
Jims
$29.95Jims - 1370 - Valve Keepers - Big TwinFeaturesMade from the highest grade materials and heat-treated to JIMS strict standardsFeature a 10 lock angleWork well with JIMS titanium valve spring...$29.95 -
Jims - 24023-54 - Gear-Side Pinion Shaft Nut - Fits 1954-1989 Big Twin; repl. OEM #24023-54 (Gear-side pinion shaft nut, 1966-1984)
Jims
MSRP: $22.95$22.55Jims - 24023-54 - Gear-Side Pinion Shaft Nut Features 5/8"-24 left-hand threads Specs TypeMSRP: $22.95$22.55 -
Jims - 24017-80 - Sprocket Shaft Nut - Fits 72-E85 Big Twin (rod clearance must be checked on 72-E81 models) and JIMS big tapered motor sprocket shafts (ea.)
Jims
MSRP: $39.95$39.55Jims - 24017-80 - Sprocket Shaft NutFeaturesHeavy-duty nut fits flywheel-side of sprocket shaft1-1/8"-16 threadsMade in the U.S.A.SpecsMSRP: $39.95$39.55 -
Jims - 25581-70 - Cam Bushing - Big Twin
Jims
MSRP: $39.95$39.35Jims - 25581-70 - Cam Bushing - Big Twin Features Bushings are made from solid bronze bar stock Machined in one operation with a tolerance of .0002" Feature a lead-in for ease of...MSRP: $39.95$39.35 -
Jims - 25586-37 - Cam Bushing - XL
Jims
MSRP: $42.95$42.35Jims - 25586-37 - Cam Bushing - XL Features Bushings are made from solid bronze bar stock Machined in one operation with a tolerance of .0002" Feature a lead-in for ease of installation Made...MSRP: $42.95$42.35 -
Jims - 24335-36 - Wrist Pin Bushing - Big Twin
Jims
MSRP: $51.95$51.45Jims - 24335-36 - Wrist Pin Bushing - Big Twin Features Machined from solid bronze bar stock Hold concentricity to less than .0002" Lead-in edge for easy installation Made in the U.S.A...MSRP: $51.95$51.45 -
Jims - 26346-69/70 - Oil Pump Shaft - Big Twin
Jims
$43.05Jims - 26346-69/70 - Oil Pump Shaft - Big TwinFeaturesOil Pump Component for Big Twin modelsSpecsProduct Name$43.05 -
Jims - 3998K - Wrist Pin Bushing - Twin Cam
Jims
$60.25Jims - 3998K - Wrist Pin Bushing - Twin Cam Features Machined from solid bronze bar stock Hold concentricity to less than .0002" Lead-in edge for easy installation Made in the U.S.A...$60.25 -
Jims - 23961-80A3 - Crank Pin - Big Twin
Jims
$145.50Jims - 23961-80A3 - Crank Pin - Big TwinFeaturesQuality replacement that equals or exceeds OEM specificationsMade in the U.S.A.Specs$145.50 -
Jims - 1045RR - Rocker Arms - Big Twin/XL
Jims
$959.85Jims - 1045RR - Rocker Arms - Big Twin/XLFeaturesThe lightest rocker arm available, but still has superior strength characteristics due to its designThe strength of 660 bronze bushings and...$959.85 -
Jims - 17428-57K - Rocker Arm Bushings - Big Twin/XL
Jims
$83.95Jims - 17428-57K - Rocker Arm Bushings - Big Twin/XLFeaturesQuality, American-made rocker arm shafts and bushingsReplacement Part for OEM Number(s): 1742857Specs$83.95 -
Jims - 17611-83 - Rocker Arm Shaft - Evolution/Twin Cam
Jims
$51.25Jims - 17611-83 - Rocker Arm Shaft - Evolution/Twin CamFeaturesMade in the U.S.A.Replacement Part for OEM Number(s): 1761183Specs$51.25 -
Gardner-Westcott - P-74-26 - Bolts - Lifter Base - Allen
Gardner-Westcott
$14.95Gardner-Westcott - P-74-26 - Bolts - Lifter Base - Allen Features Includes eight chrome socket-head screws Made in the U.S.A. Specs$14.95 -
Gardner-Westcott - C-80-115Y - Rocker Box Bolt Kit - 80" - Fits 1986-2003 XL; 1984-1999 Evolution Big Twin
Gardner-Westcott
$56.95Gardner-Westcott - C-80-115Y - Rocker Box Bolt Kit - 80"FeaturesKit contains all necessary hex-head bolts, Allen-head bolts and washers needed to install a pair of rocker boxes on a motorMade in the...$56.95 -
Jims - 1800 - Hydrosolid Tappet - Fits 1986-1990 XL (0.8425" OD); repl. OEM #18523-86; 1984-1999 Evolution Big Twin; repl. OEM #18523-86 (0.8425" OD)
Jims
$163.05Jims - 1800 - Hydrosolid TappetFeaturesPerform like a hydraulic tappet up to 5500 rpm, then turn into a solid tappetWhen they turn into solid tappets, it adds approximately three to six more usable...$163.05 -
Jims - 25582-54/73 - Pinion Shaft Bushing - Fits 1954-1992 Big Twin; repl. OEM #25582-54, 73; 1954-1992 Big Twin; repl. OEM #s 25582-54, 25582-73 (Pinion shaft bushing, 1966-1984)
Jims
MSRP: $57.95$57.35Jims - 25582-54/73 - Pinion Shaft Bushing Features Quality pinion shaft bushings Made in the U.S.A. SpecsMSRP: $57.95$57.35 -
Jims - 25582-93 - Pinion Shaft Bushing - Fits 1993-1999 Evolution Big Twin; repl. OEM #25582-93
Jims
$46.00Jims - 25582-93 - Pinion Shaft Bushing Features Quality pinion shaft bushings Made in the U.S.A. Specs$46.00 -
Jims - 2456-1 - Large Axle Tappet - Evolution
Jims
$146.15Jims - 2456-1 - Large Axle Tappet - EvolutionFeaturesMicro-finish bore allows a running fit of .0002"Big Axle™ rollers are designed around three working partsThe outer wheel/roller has a 27% greater...$146.15 -
Gardner-Westcott - SP-88-98 - Bolt Kit - Motor Set - Socket-Head
Gardner-Westcott
$334.95Gardner-Westcott - SP-88-98 - Bolt Kit - Motor Set - Socket-HeadFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A.Specs$334.95 -
Gardner-Westcott - SP-88-79 - Bolt Kit - Motor Set - Socket-Head
Gardner-Westcott
$284.95Gardner-Westcott - SP-88-79 - Bolt Kit - Motor Set - Socket-HeadFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A.Specs$284.95 -
Gardner-Westcott - P-80-88 - Bolt Kit - Motor Set - Socket-Head
Gardner-Westcott
$312.95Gardner-Westcott - P-80-88 - Bolt Kit - Motor Set - Socket-HeadFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A.Specs$312.95 -
Gardner-Westcott - P-88-26 - Bolt Kit - Lifter Base - Socket-Head - Twin Cam
Gardner-Westcott
$27.95Gardner-Westcott - P-88-26 - Bolt Kit - Lifter Base - Socket-Head - Twin CamFeaturesMade in the U.S.A.SpecsUnits<$27.95 -
Gardner-Westcott - P-88-98 - Bolt Kit - Motor Set - Socket-Head - FLT
Gardner-Westcott
$371.95Gardner-Westcott - P-88-98 - Bolt Kit - Motor Set - Socket-Head - FLTFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A...$371.95 -
Gardner-Westcott - P-88-99 - Bolt Kit - Motor Set - Socket-Head - FXD
Gardner-Westcott
$390.95Gardner-Westcott - P-88-99 - Bolt Kit - Motor Set - Socket-Head - FXDFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A...$390.95 -
James Gasket - JGI-17047-98 - Head/Base Gasket Kit - Twin Cam
James Gaskets
$78.95James Gasket - JGI-17047-98 - Head/Base Gasket Kit - Twin CamFeaturesGenuine James kit includes matching head and base gaskets and O-rings where applicableAvailable in standard or big bore styleMade...$78.95 -
Feuling Parts - 9015 - Crankshaft Runout Measuring Tool - Twin Cam/EVO
Feuling
$129.95Feuling Parts - 9015 - Crankshaft Runout Measuring Tool - Twin Cam/EVO Features Mounts to the cam chest side of the engine case using the designated mounting holes of the tool combined with the...$129.95 -
Gardner-Westcott - P-96-77 - Bolt Kit - Motor Set - Socket-Head - FLHT
Gardner-Westcott
$357.95Gardner-Westcott - P-96-77 - Bolt Kit - Motor Set - Socket-Head - FLHTFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A...$357.95
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.