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 - 8740-19 - Oil Pump Mount Hex Kit Chrome
Colony Machine
MSRP: $42.24$41.39V-Twin - 8740-19 - Oil Pump Mount Hex Kit Chrome Description Oil pump mount hex kit, chrome finish. Fits: FL 1941-1967 EL 1936-1940 Additional InformationMSRP: $42.24$41.39 -
V-Twin - 8735-24 - Rocker Box Valve Cover Screws Short Cadmium
Colony Machine
$46.23V-Twin - 8735-24 - Rocker Box Valve Cover Screws Short Cadmium Description Rocker box valve cover short screws with cadmium finish in a pack of 24.Use with steel D rings. Fits: FL...$46.23 -
V-Twin - 8734-24 - Rocker Box Valve Cover Screw Short Chrome
Colony Machine
$52.29V-Twin - 8734-24 - Rocker Box Valve Cover Screw Short Chrome Description Rocker box valve cover screw, short, chrome finish.Use with steel D rings. Fits: FL 1948-1965 Additional...$52.29 -
V-Twin - 8733-24 - Rocker Box Valve Cover Screw Long Cadmium
Colony Machine
MSRP: $44.56$43.67V-Twin - 8733-24 - Rocker Box Valve Cover Screw Long Cadmium Description Rocker box valve cover screw, long, cadmium finish.Use with aluminum D rings. Fits: FL 1948-1965 Additional...MSRP: $44.56$43.67 -
V-Twin - 8732-24 - Rocker Box Valve Cover Screw Long Chrome
Colony Machine
$52.29V-Twin - 8732-24 - Rocker Box Valve Cover Screw Long Chrome Description Rocker box valve cover screw, long, chrome finish.Use with aluminum D rings. Fits: FL 1954-1965 Additional...$52.29 -
V-Twin - 8729-12 - V-Twin Pushrod Cover Seal Kit Rubber
Colony Machine
MSRP: $9.86$9.76V-Twin - 8729-12 - V-Twin Pushrod Cover Seal Kit Rubber Description Pushrod cover seal kit, rubber. Fits: XL 1957-1979 EL 1936-1940 FL 1941-1947 Additional InformationMSRP: $9.86$9.76 -
V-Twin - 8721-1 - Oil Pump Mount Kit Cadmium
Colony Machine
MSRP: $14.72$14.56V-Twin - 8721-1 - Oil Pump Mount Kit Cadmium Description Cadmium short oil pump mount kit with 1/4-24 threads on Side Valve models. Fits: WL 1929-1952 G 1929-1973 Additional InformationMSRP: $14.72$14.56 -
V-Twin - 8714-20 - Big Bore 12 Pt Head Bolt Kit Chrome
Colony Machine
MSRP: $69.68$68.98V-Twin - 8714-20 - Big Bore 12 Pt Head Bolt Kit Chrome Description Big Bore 12 pt headbolt kit in Chrome. Fits: FX 1971-1984 FL 1948-1984 Additional InformationMSRP: $69.68$68.98 -
V-Twin - 8707-6 - Oil Screen Relief and Check Valve Plugs
Colony Machine
$34.95V-Twin - 8707-6 - Oil Screen Relief and Check Valve PlugsDescriptionOil screen relief and check valve plugs.Oil pump check valve and relief plugs install in the top on the oil pump. The tappet oil...$34.95 -
V-Twin - 8706-6 - Oil Pump Screen Relief Plug Set Chrome
Colony Machine
MSRP: $38.11$37.35V-Twin - 8706-6 - Oil Pump Screen Relief Plug Set ChromeDescriptionOil pump screen relief plug set contains 3 plugs, chrome. Fits:FX 1971-1980FL 1970-1980Additional InformationMSRP: $38.11$37.35 -
V-Twin - 8705-2 - Tappet Oil Screen Plug
Colony Machine
MSRP: $20.18$18.86V-Twin - 8705-2 - Tappet Oil Screen PlugDescriptionTappet oil screen plug. Fits:FL 1966-1969Additional Information OEM No.MSRP: $20.18$18.86 -
V-Twin - 8704-2 - Tappet Oil Screen Plug
Colony Machine
MSRP: $20.18$18.86V-Twin - 8704-2 - Tappet Oil Screen PlugDescriptionTappet oil screen plug. Fits:FL 1952-1965Additional Information OEM No.MSRP: $20.18$18.86 -
V-Twin - 8702-2 - Oil Plump Check Valve Plug
Colony Machine
MSRP: $17.86$17.68V-Twin - 8702-2 - Oil Plump Check Valve PlugDescriptionOil pump check valve plug. Fits:FX 1971-1980EL 1936-1940FL 1941-1980Additional InformationMSRP: $17.86$17.68 -
V-Twin - 8701-2 - Tappet Oil Screen Plug
Colony Machine
MSRP: $19.26$19.06V-Twin - 8701-2 - Tappet Oil Screen PlugDescriptionTappet oil screen plug. Fits:FX 1971-1980FL 1970-1980FLT 1979-1980Additional InformationMSRP: $19.26$19.06 -
V-Twin - 8630-1 - Rocker Box Feed Line Nipple Cadmium
Colony Machine
MSRP: $19.26$19.06V-Twin - 8630-1 - Rocker Box Feed Line Nipple CadmiumDescriptionCadmium rocker box feed line nipple Fits:EL 1936-1940FL 1941-1941Additional InformationMSRP: $19.26$19.06 -
V-Twin - 8629-1 - Slotted Nut Driver Tool
Colony Machine
$24.19V-Twin - 8629-1 - Slotted Nut Driver ToolDescriptionSlotted nut driver tool for all pre-1930 engine cases. Fits:Special application on pre 1930 casesAdditional Information$24.19 -
V-Twin - 8628-6 - Slotted 1/4 inch - 24 Thread Engine Case Nut
Colony Machine
$26.06V-Twin - 8628-6 - Slotted 1/4 inch - 24 Thread Engine Case NutDescriptionEngine case nut, slotted 1/4" - 24 thread. Fits:Special application on pre 1930 casesAdditional Information$26.06 -
V-Twin - 8620-17 - Engine Case Bolt Kit Cadmium
Colony Machine
$45.42V-Twin - 8620-17 - Engine Case Bolt Kit CadmiumDescriptionCadmium engine case bolt kit for side valve models Fits:WL 1937-1952G 1937-1973Additional Information$45.42 -
V-Twin - 8619-17 - Engine Case Bolt Kit Chrome
Colony Machine
$48.25V-Twin - 8619-17 - Engine Case Bolt Kit ChromeDescriptionChrome engine case bolt kit for side valve models Fits:WL 1937-1952G 1937-1973Additional Information$48.25 -
V-Twin - 8618-20 - Cylinder Head Bolt Set 12 Point Black
Colony Machine
$59.55V-Twin - 8618-20 - Cylinder Head Bolt Set 12 Point BlackDescriptionBlack 12 point cylinder head bolt kit includes ten 7/16"-20 x 2-3/8" 12 point head bolts and ten 7/16" flat washers.These bolts are...$59.55 -
V-Twin - 8609-36 - Cadmium Rocker Box Hex Nuts
Colony Machine
$24.34V-Twin - 8609-36 - Cadmium Rocker Box Hex NutsDescriptionRocker box hex nut, cadmium finish. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information$24.34 -
V-Twin - 8608-36 - Chrome Rocker Box Hex Nuts
Colony Machine
$26.48V-Twin - 8608-36 - Chrome Rocker Box Hex NutsDescriptionRocker box hex nuts, chrome finish. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information$26.48 -
V-Twin - 8601-8 - High Torque 7/16 inch Cylinder Base Nut Black
Colony Machine
MSRP: $41.00$40.18V-Twin - 8601-8 - High Torque 7/16 inch Cylinder Base Nut BlackDescriptionHigh torque 7/16" cylinder base nut features a black finish.Nut measures 7/16". Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL...MSRP: $41.00$40.18 -
V-Twin - 8600-8 - High Torque 7/16 inch Big Bore Cylinder Base Nut Chrome
Colony Machine
MSRP: $42.22$41.37V-Twin - 8600-8 - High Torque 7/16 inch Big Bore Cylinder Base Nut ChromeDescriptionChrome high torque 7/16" cylinder base nut is for 1966-1984 FL, 1971-1984 FX, 1979-1983 FLT and 1982-1983 FXR...MSRP: $42.22$41.37 -
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
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.