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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V-Twin - 8520 - Engine Dress Up Cap Kit Chrome
Colony Machine
$105.15V-Twin - 8520 - Engine Dress Up Cap Kit ChromeDescriptionChrome caps for show bike dress up kit. Fits:FXST 1987-1988Additional Information$105.15 -
V-Twin - 8518 - Engine Dress Up Cap Kit Chrome
Colony Machine
$105.15V-Twin - 8518 - Engine Dress Up Cap Kit ChromeDescriptionChrome caps for show bike dress up kit. Fits:XL 1985-1986 Evolution 5-SpeedAdditional Information$105.15 -
V-Twin - 8495-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread Cadmium
Colony Machine
$15.72V-Twin - 8495-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread CadmiumDescriptionTransmission engine drain plug 1/2" X 13 thread, cadmium. Fits:XL 1957-1976 Engine and transmissionFL 1941-1984...$15.72 -
V-Twin - 8494-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread Chrome
Colony Machine
MSRP: $14.72$14.56V-Twin - 8494-1 - Transmission Engine Drain Plug 1/2 inch X 13 Thread ChromeDescriptionTransmission engine drain plug, 1/2" X 13 thread, chrome. Fits:XL 1957-1976 Engine and transmissionFL 1941-1984...MSRP: $14.72$14.56 -
V-Twin - 8474-8 - Cylinder Base Hex Cap Nut Chrome Milled
Colony Machine
MSRP: $38.11$37.35V-Twin - 8474-8 - Cylinder Base Hex Cap Nut Chrome MilledDescriptionCylinder base hex cap nut, chrome milled finish. Fits:FLT 1979-1983FXR 1982-1983FL 1978-1984FL 1979-1983FX 1978-1984Additional...MSRP: $38.11$37.35 -
V-Twin - 8449-22 - Rocker Box Nut Kit Cap Style
Colony Machine
$65.60V-Twin - 8449-22 - Rocker Box Nut Kit Cap StyleDescriptionRocker box nut kit, cap style. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information$65.60 -
V-Twin - 8437-16 - Cylinder Base Nut Kit Cap Chrome
Colony Machine
$29.45V-Twin - 8437-16 - Cylinder Base Nut Kit Cap ChromeDescriptionCylinder base nut kit cap, chrome 8 piece Fits:FX 1971-1977EL 1936-1940FL 1941-1977Additional Information$29.45 -
V-Twin - 8400-8 - Rocker Shaft Chrome End Cap Type Nut with Washers
Colony Machine
MSRP: $21.52$12.95V-Twin - 8400-8 - Rocker Shaft Chrome End Cap Type Nut with WashersDescriptionRocker arm shaft end nut kit contains 4 cap nuts and washers with chrome finish. Fits:FLT 1979-1983FX 1971-1984FXR...MSRP: $21.52$12.95 -
V-Twin - 8321 CHR - Stock Style Hardware Kit Chrome
Colony Machine
$250.93V-Twin - 8321 CHR - Stock Style Hardware Kit ChromeDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$250.93 -
V-Twin - 8321 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$225.28V-Twin - 8321 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$225.28 -
V-Twin - 8320 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$230.74V-Twin - 8320 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$230.74 -
V-Twin - 8319 CAD - Hardware Dress Up Kit Cadmium
Colony Machine
$237.33V-Twin - 8319 CAD - Hardware Dress Up Kit CadmiumDescriptionCadmium hardware dress up kit for side valve models. Fits:XL 1971-1973Additional Information$237.33 -
V-Twin - 8318 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$299.33V-Twin - 8318 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$299.33 -
V-Twin - 8317 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$251.54V-Twin - 8317 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$251.54 -
V-Twin - 8316 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$247.16V-Twin - 8316 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$247.16 -
V-Twin - 8315 CAD - Stock Style Hardware Kit Cadmium
Colony Machine
$246.07V-Twin - 8315 CAD - Stock Style Hardware Kit CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$246.07 -
V-Twin - 8313 CAD - Stock Style Hardware Kit Standard Cadmium
Colony Machine
$273.19V-Twin - 8313 CAD - Stock Style Hardware Kit Standard CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine, STD.Includes primary cover...$273.19 -
V-Twin - 8312 CHR - Chrome Stock Style Hardware Kit
Colony Machine
$392.99V-Twin - 8312 CHR - Chrome Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$392.99 -
V-Twin - 8311 CAD - Stock Style Hardware Kit HD Cadmium
Colony Machine
$297.01V-Twin - 8311 CAD - Stock Style Hardware Kit HD CadmiumDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine, HD.Includes primary cover screws,...$297.01 -
V-Twin - 8309 CAD - Cadmium Stock Style Hardware Kit for Aluminum Heads
Colony Machine
$326.26V-Twin - 8309 CAD - Cadmium Stock Style Hardware Kit for Aluminum HeadsDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine with aluminum...$326.26 -
V-Twin - 8308 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$300.73V-Twin - 8308 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$300.73 -
V-Twin - 8307 CHR - Chrome Stock Style Hardware Kit
Colony Machine
$383.72V-Twin - 8307 CHR - Chrome Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$383.72 -
V-Twin - 8307 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$287.58V-Twin - 8307 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$287.58 -
V-Twin - 8306 CAD - Cadmium Stock Style Hardware Kit for Aluminum Heads
Colony Machine
$336.68V-Twin - 8306 CAD - Cadmium Stock Style Hardware Kit for Aluminum HeadsDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine with aluminum...$336.68 -
V-Twin - 8304 CAD - Cadmium Stock Style Hardware Kit for Cast Ironheads
Colony Machine
$303.24V-Twin - 8304 CAD - Cadmium Stock Style Hardware Kit for Cast IronheadsDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine with cast...$303.24 -
V-Twin - 8303 CHR - Chrome Stock Style Hardware Kit
Colony Machine
$312.24V-Twin - 8303 CHR - Chrome Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$312.24 -
V-Twin - 8303 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$228.16V-Twin - 8303 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$228.16 -
V-Twin - 8302 CHR - Chrome Stock Style Hardware Kit
Colony Machine
$305.45V-Twin - 8302 CHR - Chrome Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$305.45 -
V-Twin - 8302 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$223.50V-Twin - 8302 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$223.50 -
V-Twin - 8301 CHR - Chrome Stock Style Hardware Kit
Colony Machine
$362.42V-Twin - 8301 CHR - Chrome Stock Style Hardware KitDescriptionStock hardware kit contains all the stock style engine nuts, bolts, washers and studs for your engine.Includes primary cover screws,...$362.42 -
V-Twin - 8301 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$292.44V-Twin - 8301 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine.Includes primary cover screws, lifter...$292.44 -
V-Twin - 8300 CAD - Cadmium Stock Style Hardware Kit
Colony Machine
$294.17V-Twin - 8300 CAD - Cadmium Stock Style Hardware KitDescriptionStock hardware kit contains all the stock engine nuts, bolts, washers and studs for your engine. Fits:EL 1936-1939Additional Information$294.17 -
V-Twin - 8230-2 - Cadmium Top Motor Mount Headbolt Spacer
Colony Machine
$24.34V-Twin - 8230-2 - Cadmium Top Motor Mount Headbolt SpacerDescriptionCadmium top motor mount headbolt spacerfor spacing out the two longest head bolts on aluminum head models. Fits:G 1941-1973WL...$24.34 -
V-Twin - 8229-2 - Chrome Top Motor Mount Headbolt Spacer
Colony Machine
$24.34V-Twin - 8229-2 - Chrome Top Motor Mount Headbolt SpacerDescriptionChrome top motor mount headbolt spacer for spacing out the two longest head bolts on aluminum head models. Fits:G 1941-1973WL...$24.34 -
V-Twin - 8225-8 - Rocker Shaft End Plug and Cap Nut Cadmium
Colony Machine
MSRP: $42.22$41.37V-Twin - 8225-8 - Rocker Shaft End Plug and Cap Nut CadmiumDescriptionRocker shaft end plug and cap nut, cadmium finish. Fits:FL 1971-1984XL 1971-1985FLT 1979-1983FX 1971-1984FXR 1982-1983Additional...MSRP: $42.22$41.37 -
V-Twin - 8224-8T - Rocker Shaft End Nut Stock Allen Type Chrome - Fits 1971-1984 Harley-Davidson FL, 1971-1985 XL, 1979-1983 FLT, 1971-1984 FX, 1982-1983 FXR
V-Twin Mfg
$50.16When restoring your Big Twin, don't overlook your rocker boxes. Replace the old rocker caps with our V-Twin chrome rocker shaft end nuts. These end nuts have a allen style head and are for 1971-1984...$50.16 -
V-Twin - 8223-8 - Cadmium Rocker Shaft End Cap Nut Slot Type
Colony Machine
MSRP: $42.22$41.37V-Twin - 8223-8 - Cadmium Rocker Shaft End Cap Nut Slot TypeDescriptionRocker arm shaft nut cap, slot type, cadmium finish. Fits:FL 1966-1970XL 1957-1970Additional InformationMSRP: $42.22$41.37 -
V-Twin - 8222-8 - Chrome Rocker Shaft End Cap Nut Slot Type
Colony Machine
$51.48V-Twin - 8222-8 - Chrome Rocker Shaft End Cap Nut Slot TypeDescriptionRocker arm shaft nut cap, slot type, chrome finish. Fits:FL 1966-1970XL 1957-1970Additional Information$51.48 -
V-Twin - 8221-20 - Chrome Stock Head Bolt with Washer
Colony Machine
$88.78V-Twin - 8221-20 - Chrome Stock Head Bolt with WasherDescriptionStock head bolt with washers in chrome. Fits:FX 1971-1984FL 1948-1984Additional Information$88.78 -
V-Twin - 8220-20 - Chrome Head Bolt with Washer
Colony Machine
$88.78V-Twin - 8220-20 - Chrome Head Bolt with WasherDescriptionChrome head bolt with washer Fits:FL 1940-1947Additional Information UO$88.78
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.