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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On Sale
Colony - Rocker Shaft End Caps - Chrome fits Harley FL, FX, and XL (see desc.)
Colony Machine
Now: $41.99Was: $46.23Rocker shaft end caps, chrome finish. Fits: FL 1971-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1971-1985Now: $41.99Was: $46.23 -
Colony - Rocker Shaft End Plugs - fits '66-'70 FL, '57-'70 XL
Colony Machine
$39.99The chrome rocker arm shaft end plug makes installation and removal a much easier job than with the original slotted part. Includes 4 plugs per set. Fits: FL 1966-1970 XL 1957-1970$39.99 -
On Sale
Colony - Hex Head Bolts - Chrome fits '57-'72 XL
Colony Machine
MSRP: $69.95Now: $64.99Was: $71.97Hex head bolt, chrome finish. Fits: XL 1957-1972MSRP: $69.95Now: $64.99Was: $71.97 -
V-Twin - Blacked Out Rocker Box Cover Set fits '07-'12 XL Sportster
V-Twin Mfg
$492.45Harley Sportster Rocker box cover set with black finish. Fits: XL 2007-2012$492.45 -
Spectro - 311472 - Full Oil Service Kit XL Synthetic - Fits 1986-2022 Harley-Davidson Sportster
Spectro Oils
$99.00Spectro - 311472 - Full Oil Service Kit XL Synthetic - Fits 1986-2022 Harley-Davidson SportsterDescriptionFull service kit for Sportsters: engine oil, primary/transmission oil, a filter and drain...$99.00 -
Spectro - 311473 - Full Oil Service Kit XL Premium - Fits 1986-2022 Harley-Davidson Sportster
Spectro Oils
$79.50Spectro - 311473 - Full Oil Service Kit XL Premium - Fits 1986-2022 Harley-Davidson SportsterDescriptionFull service kit for Sportsters using Spectro's petroleum Premium line: engine oil, primary...$79.50 -
Spectro - 311474 - Full Oil Service Kit M8 Synthetic - Fits 2017-2026 Harley-Davidson M8 Touring & 2018-2026 M8 Softail
Spectro Oils
$142.50Spectro - 311474 - Full Oil Service Kit M8 Synthetic - Fits 2017-2026 Harley-Davidson M8 Touring & 2018-2026 M8 SoftailDescriptionEverything you need to service all three holes on a Milwaukee-Eight...$142.50 -
Spectro - 311476 - Full Oil Service Kit Twin Cam Synthetic - Fits 1999-2017 Harley-Davidson Twin Cam
Spectro Oils
$125.00Spectro - 311476 - Full Oil Service Kit Twin Cam Synthetic - Fits 1999-2017 Harley-Davidson Twin CamDescriptionFull service kit for Twin Cam Big Twins: engine oil, primary oil, transmission oil, a...$125.00 -
Spectro - 311477 - Full Oil Service Kit Evo Premium - Fits 1984-1999 Harley-Davidson Evo Big Twin
Spectro Oils
$102.50Spectro - 311477 - Full Oil Service Kit Evo Premium - Fits 1984-1999 Harley-Davidson Evo Big TwinDescriptionFull service kit for Evo Big Twins using Spectro's petroleum Premium line: engine oil,...$102.50 -
Spectro - 311887 - Engine Oil Change Kit M8 Synthetic - Fits 2017-2026 Harley-Davidson M8 Touring & 2018-2026 M8 Softail
Spectro Oils
$92.20Spectro - 311887 - Engine Oil Change Kit M8 Synthetic - Fits 2017-2026 Harley-Davidson M8 Touring & 2018-2026 M8 SoftailDescriptionEngine-only oil change kit for Milwaukee-Eight bikes: engine oil, a...$92.20 -
V-Twin - 42-1250 - Black Wrinkle Cam Cover w/o Sensor Hole - Fits 2001-2017 Harley-Davidson Twin Cam FXD/FLT/FXST/FLST
V-Twin Mfg
$179.59V-Twin - 42-1250 - Black Wrinkle Cam Cover w/o Sensor Hole - Fits 2001-2017 Harley-Davidson Twin Cam FXD/FLT/FXST/FLSTDescriptionCam cover without sensor hole features a wrinkle black finish...$179.59 -
Drag Specialties - 224376 - Full Synthetic 20W-50 Oil Change Kit - Chrome Filter - Fits Evo Big Twin & Sportster
Drag Specialties
$123.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Evo Big Twin & Sportster — Chrome Filter Fits: Harley-Davidson Evolution Big Twins (1984-1999 Softail, Dyna, FXR, Touring) and 1986-up...$123.95 -
Drag Specialties - 224377 - Full Synthetic 20W-50 Oil Change Kit - Black Filter - Fits Evo Big Twin & Sportster
Drag Specialties
$123.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Evo Big Twin & Sportster — Black Filter Fits: Harley-Davidson Evolution Big Twins (1984-1999 Softail, Dyna, FXR, Touring) and 1986-up Evolution...$123.95 -
Drag Specialties - 224381 - Full Synthetic 20W-50 Oil Change Kit - Black Filter - Fits Milwaukee-Eight M8
Drag Specialties
$161.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Milwaukee-Eight M8 — Black Filter Fits: 2017-up Harley-Davidson Milwaukee-Eight (M8 Softail, Touring, Trike). 5 quarts. Everything for the...$161.95 -
Drag Specialties - 224379 - Full Synthetic 20W-50 Oil Change Kit - Black Filter - Fits Twin Cam
Drag Specialties
$128.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Twin Cam — Black Filter Fits: 1999-2017 Harley-Davidson Twin Cam (Softail, Dyna, Touring, Trike). 4 quarts. Everything for the engine oil...$128.95 -
Drag Specialties - 224380 - Full Synthetic 20W-50 Oil Change Kit - Chrome Filter - Fits Milwaukee-Eight M8
Drag Specialties
$165.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Milwaukee-Eight M8 — Chrome Filter Fits: 2017-up Harley-Davidson Milwaukee-Eight (M8 Softail, Touring, Trike). 5 quarts. Everything for the...$165.95 -
Drag Specialties - 224378 - Full Synthetic 20W-50 Oil Change Kit - Chrome Filter - Fits Twin Cam
Drag Specialties
$132.95Drag Specialties Full Synthetic 20W-50 Oil Change Kit — Twin Cam — Chrome Filter Fits: 1999-2017 Harley-Davidson Twin Cam (Softail, Dyna, Touring, Trike). 4 quarts. Everything for the engine oil...$132.95 -
S&S Cycle - 310-1395A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1395A - Power Pack - Oil Cooled - 496 Chain Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil...$3,294.95 -
S&S Cycle - 310-1400A - Power Package - Water Cooled - 496 Chain Drive - Black Granite w/Highlight - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1400A - Power Package - Water Cooled - 496 Chain Drive - Black Granite w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,294.95 -
S&S Cycle - 310-1393A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1393A - Power Package - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases your 114"/117" with 4.50" stroke M8 to 132" with no case...$3,497.95 -
S&S Cycle - 310-1238D - Power Pack - Oil Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,497.95S&S Cycle - 310-1238D - Power Pack - Oil Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,497.95 -
S&S Cycle - 310-1398A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1398A - Power Pack - Oil Cooled - 496 Gear Drive - Wrinkle Black w/Highlight - M8FeaturesBig bore bolt-on kit increases 107" M8 to 129" with no case machining requiredS&S oil pump/cam...$3,497.95 -
S&S Cycle - 310-1109D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1109D - Power Pack - Oil Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,294.95 -
S&S Cycle - 310-1108D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1108D - Power Pack - Water Cooled - 550G - Black Granite w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1104D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1104D - Power Pack - Oil Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1235D - Power Pack - Water Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8
S&S Cycle
$3,294.95S&S Cycle - 310-1235D - Power Pack - Water Cooled - 550C - Black Granite w/Highlight - Chrome Pushrod Tubes - 114"/117" M8FeaturesUpdated profile4.32" bore cylinders with 11.0:1 compression ratio...$3,294.95 -
S&S Cycle - 310-1105D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1105D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,294.95 -
S&S Cycle - 310-1102D - Power Pack - Water Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8
S&S Cycle
$3,497.95S&S Cycle - 310-1102D - Power Pack - Water Cooled - 550G - Wrinkle Black w/Highlight - Chrome Pushrod Tubes - M8FeaturesUpdated profileForged pistonsMade in the USAIncludes oil pump/cam plate,...$3,497.95 -
S&S Cycle - 310-1057D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Black Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1057D - Power Pack - Oil Cooled - 550C - Wrinkle Black w/o Highlight - Black Pushrod Tubes - M8FeaturesUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil...$3,294.95 -
S&S Cycle - 310-1054D - Power Pack - Water Cooled - 550C - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8
S&S Cycle
$3,294.95S&S Cycle - 310-1054D - Power Pack - Water Cooled - 550C - Wrinkle Black w/Highlight - Black Pushrod Tubes - M8FeaturesUpdated finsNo case machining requiredForged pistonsMade in the USAIncludes oil...$3,294.95 -
S&S Cycle - 310-1259A - Cam Chest - Oil Cooled - Gear Drive - Chrome Pushrod Tubes - M8
S&S Cycle
$1,623.95S&S Cycle - 310-1259A - Cam Chest - Oil Cooled - Gear Drive - Chrome Pushrod Tubes - M8FeaturesPrecision machined from billet aluminumPassage plugs removable for servicingIndependent scavenge section...$1,623.95 -
S&S Cycle - 310-1383A - Cam Chest Kit - Oil Cooled - Gear Drive - 496 Cam - Black Pushrod Tubes - M8
S&S Cycle
$1,695.95S&S Cycle - 310-1383A - Cam Chest Kit - Oil Cooled - Gear Drive - 496 Cam - Black Pushrod Tubes - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...$1,695.95 -
S&S Cycle - 310-1009B - Cam Chest Kit - Water Cooled - Gear Drive - 465 Cam - Black Pushrod Tubes - M8
S&S Cycle
$1,924.95S&S Cycle - 310-1009B - Cam Chest Kit - Water Cooled - Gear Drive - 465 Cam - Black Pushrod Tubes - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...$1,924.95 -
S&S Cycle - 310-1261A - Cam Chest - Water Cooled - Gear Drive - Chrome Pushrod Tubes - M8
S&S Cycle
$1,623.95S&S Cycle - 310-1261A - Cam Chest - Water Cooled - Gear Drive - Chrome Pushrod Tubes - M8FeaturesPrecision machined from billet aluminumPassage plugs removable for servicingIndependent scavenge...$1,623.95 -
S&S Cycle - 310-1258A - Cam Chest - Oil Cooled - Gear Drive - Black Pushrod Tubes - M8
S&S Cycle
$1,623.95S&S Cycle - 310-1258A - Cam Chest - Oil Cooled - Gear Drive - Black Pushrod Tubes - M8FeaturesPrecision machined from billet aluminumPassage plugs removable for servicingIndependent scavenge section...$1,623.95 -
S&S Cycle - 310-1262A - Cam Chest - Oil Cooled - Chain Drive - Black Pushrod Tubes - M8
S&S Cycle
$1,522.95S&S Cycle - 310-1262A - Cam Chest - Oil Cooled - Chain Drive - Black Pushrod Tubes - M8FeaturesOil Pump/Cam Plate:Precision machined from billet aluminumPassage plugs are removable for...$1,522.95 -
S&S Cycle - 310-1013B - Cam Chest Kit - Oil Cooled - Gear Drive - 465 Cam - Black Pushrod Tubes - M8
S&S Cycle
$1,924.95S&S Cycle - 310-1013B - Cam Chest Kit - Oil Cooled - Gear Drive - 465 Cam - Black Pushrod Tubes - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...$1,924.95 -
S&S Cycle - 310-1006B - Cam Chest Kit - Oil Cooled - Gear Drive - 475 Cam - Chrome Pushrod Tubes - M8
S&S Cycle
$1,924.95S&S Cycle - 310-1006B - Cam Chest Kit - Oil Cooled - Gear Drive - 475 Cam - Chrome Pushrod Tubes - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...$1,924.95 -
S&S Cycle - 310-1387A - Cam Chest Kit - Water Cooled - Gear Drive - 496 Cam - Black Pushrod Tubes - M8
S&S Cycle
$1,695.95S&S Cycle - 310-1387A - Cam Chest Kit - Water Cooled - Gear Drive - 496 Cam - Black Pushrod Tubes - M8FeaturesAll parts in each kit are matched to ensure superior quality, fit, finish and...$1,695.95 -
S&S Cycle - 310-1116B - Cam Chest Kit - Water Cooled - Chain Drive - 450 Cam - Chrome Pushrod Tubes - M8
S&S Cycle
$1,721.95S&S Cycle - 310-1116B - Cam Chest Kit - Water Cooled - Chain Drive - 450 Cam - Chrome Pushrod Tubes - M8FeaturesPassage plugs are removable for servicingIndependent scavenge sections for the flywheel...$1,721.95
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.