Engine
8832 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 - 12-0609 - Jims Pinion Shaft Nut 3/4 inch-20
Jims
$51.49V-Twin - 12-0609 - Jims Pinion Shaft Nut 3/4 inch-20DescriptionJims pinion shaft nut measures 3/4"-20. Fits:FXST 1984-1989FLT 1981-1989FXR 1982-1989FLST 1986-1989FL 1981-1984FX 1981-1984Additional...$51.49 -
V-Twin - 12-0606 - Jims Crank Pin Nut Set 1 inch x 20
Jims
$85.64V-Twin - 12-0606 - Jims Crank Pin Nut Set 1 inch x 20DescriptionJims crank pin nut set measures 1" x 20.Sold as a pair Fits:FXR 1982-1994FX 1983-1984FXD 1991-1998FLST 1984-1998FLT 1983-1984FL...$85.64 -
V-Twin - 12-0604 - Jims Crank Pin Nut Set 1 inch x 20
Jims
$74.16V-Twin - 12-0604 - Jims Crank Pin Nut Set 1 inch x 20DescriptionJims crank pin nut set measures 1" x 20.Sold as a pair Fits:XL 1957-1980Additional Information$74.16 -
V-Twin - 12-0603 - Jims Crank Pin Nut Set 1 inch x 18
Jims
$85.64V-Twin - 12-0603 - Jims Crank Pin Nut Set 1 inch x 18DescriptionJims crank pin nut set measures 1" x 18. Nut is used to install or remove crank pin nut.Sold as a pair Fits:FX 1971-1984FL...$85.64 -
V-Twin - 12-0602 - Jims Crank Pin Nut Set 7/8 inch x 18
Jims
$67.49V-Twin - 12-0602 - Jims Crank Pin Nut Set 7/8 inch x 18DescriptionJims crank pin nut set measures 7/8" x 18.Sold as a pair Fits:UL 1937-1948EL 1936-1952Additional Information$67.49 -
V-Twin - 12-0599 - Engine Case 1/2 inch Welch Plug
Motorshop
MSRP: $19.86$19.66V-Twin - 12-0599 - Engine Case 1/2 inch Welch PlugDescriptionEngine case 1/2" Welch plug for early cases.Welch plug is used to seal passages created for internal oiling, on oil pump body and engine...MSRP: $19.86$19.66 -
V-Twin - 12-0596 - Engine Case 3/8 inch Welch Plug
Motorshop
$26.05V-Twin - 12-0596 - Engine Case 3/8 inch Welch PlugDescriptionEngine case 3/8" Welch plug for early cases features a raw finish.Welch plug is used to seal passages created for internal oiling, on oil...$26.05 -
V-Twin - 12-0595 - Engine Case 9/16 inch Welch Plug
Motorshop
MSRP: $19.86$19.66V-Twin - 12-0595 - Engine Case 9/16 inch Welch PlugDescriptionSteel 9/16" welch plug for early engine cases are used to form the internal cavities in the engine case, forming a coolant passage.Welch...MSRP: $19.86$19.66 -
V-Twin - 12-0593 - Oil Pump Screw Kit - Fits 1965-1969 Harley-Davidson FL
V-Twin Mfg
$21.63Oil pump screw kit includes a screw, nut and brass washer. Fits:FL 1965-1969Additional Information UOM1 - KIT$21.63 -
V-Twin - 12-0584 - Oil Pump Oiler Screw
Motorshop
MSRP: $19.64$19.44V-Twin - 12-0584 - Oil Pump Oiler ScrewDescriptionOil pump oiler screw for 1954-1965 Big Twin models includes the hex nut. Long type adjustment screw with slotted head.Includes "heavy" hex nut (7630)...MSRP: $19.64$19.44 -
V-Twin - 12-0577 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
$33.56V-Twin - 12-0577 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1991-up XL and 1993-up Big Twin models. Fits:FLT 1993-1998FXST 1993-1998XL 1991-UPFLST 1993-1998FXD...$33.56 -
V-Twin - 12-0573 - Crank Pin Nut Set
Eastern Motorcycle Parts
MSRP: $40.65$39.84V-Twin - 12-0573 - Crank Pin Nut SetDescriptionCrank pin nut set.Set of two. Fits:FL 1941-1953Additional Information OEM NoMSRP: $40.65$39.84 -
V-Twin - 12-0571 - Flexloc Nut for Rocker Arm Stud Cadmium
Motorshop
$32.07V-Twin - 12-0571 - Flexloc Nut for Rocker Arm Stud CadmiumDescriptionReplica rocker arm stud flex jam nuts are all metal, are cadmium plated, and are 5/16-24. Fits:FL 1948-1965Additional Information$32.07 -
V-Twin - 12-0565 - Crank Pin Nut Set
Eastern Motorcycle Parts
$26.05V-Twin - 12-0565 - Crank Pin Nut SetDescriptionCrank pin nut set.Sold as a pair Fits:XL 1981-UPAdditional Information OEM N$26.05 -
V-Twin - 12-0560 - Pinion/Sprocket 45 inch Shaft Nut
Eastern Motorcycle Parts
$36.53V-Twin - 12-0560 - Pinion/Sprocket 45 inch Shaft NutDescriptionPinion/sprocket 45" Shaft NutNut is for use on pinion and sprocket shaft on 45 W & G models. Fits:WL 1937-1952DL 1929-1931WL 1932-1936G...$36.53 -
V-Twin - 12-0558 - Crank Pin Nut Set
Eastern Motorcycle Parts
$35.40V-Twin - 12-0558 - Crank Pin Nut SetDescriptionCrank pin nut set.Set of two. Fits:FL 1981-1983FLT 1981-1983FX 1981-1983Additional Information$35.40 -
V-Twin - 12-0536 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
$31.60V-Twin - 12-0536 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1977-1990 XL models. Fits:XL 1977-1990Additional Information$31.60 -
V-Twin - 12-0535 - Crank Pin Nut Set
Eastern Motorcycle Parts
$42.67V-Twin - 12-0535 - Crank Pin Nut SetDescriptionCrank pin nut set for overhead and side valve models.Set of two. Fits:UL 1936-1948EL 1936-1952Additional Information$42.67 -
V-Twin - 12-0532 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
$49.80V-Twin - 12-0532 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut with 3/4" X 18 TPI for tapered end shafts. Fits:EL 1936-1940FX 1971-1981FL 1941-1981Additional Information$49.80 -
V-Twin - 12-0525 - Red Rocker Arm Shaft End Caps
Motorshop
$22.96V-Twin - 12-0525 - Red Rocker Arm Shaft End CapsDescriptionReplica Red Rocker Shaft End Caps are 1/2" X 20 thread pitch and come with a high chrome finish. Fits:FX 1971-1984FXR 1982-1983FL...$22.96 -
V-Twin - 12-0524 - Tappet Nut without Split
Eastern Motorcycle Parts
$31.67V-Twin - 12-0524 - Tappet Nut without SplitDescriptionEastern tappet nut without split has a thread size of 9/32-32. Fits:Replacement application for Eastern TappetsAdditional Information$31.67 -
V-Twin - 12-0523 - Split Tappet Nut
Eastern Motorcycle Parts
$37.28V-Twin - 12-0523 - Split Tappet NutDescriptionSplit tappet nut Fits:WL 1938-1952EL 1936-1940XL 1957-1985FL 1941-1952UL 1938-1948Additional Information$37.28 -
V-Twin - 12-0522 - Crank Pin Nut Set
Eastern Motorcycle Parts
$26.05V-Twin - 12-0522 - Crank Pin Nut SetDescriptionCrank pin nut set.Sold as a pair Fits:XL 1957-1981K 1954-1956Additional Information$26.05 -
V-Twin - 12-0521 - Crank Pin Nut Set - Fits 1937-1948 Harley-Davidson UL, 1936-1952 EL
V-Twin Mfg
$28.01Crank pin nut set.Sold as a pair. Fits:UL 1937-1948EL 1936-1952Additional Information OEM No.23966-54A$28.01 -
V-Twin - 12-0520 - Crank Pin Nut Set
Eastern Motorcycle Parts
$30.70V-Twin - 12-0520 - Crank Pin Nut SetDescriptionCrank pin nut set only.Set of two. ...$30.70 -
V-Twin - 12-0517 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
$47.54V-Twin - 12-0517 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut Fits:FXST 1984-1998FLT 1979-1998FXD 1991-1998FL 1981-1984FXR 1984-1994FLST 1986-1998FX 1981-1984Additional Information$47.54 -
V-Twin - 12-0516 - Pinion Shaft Gear End Nut
Eastern Motorcycle Parts
$37.28V-Twin - 12-0516 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut Fits:XL 1981-UPAdditional Information OEM No.$37.28 -
V-Twin - 12-0512 - Pinion Shaft Gear End Nut
Alto Products
$20.45V-Twin - 12-0512 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1990-1992 Big Twin models. Fits:FLT 1990-1992FXR 1990-1992FXD 1991-1992FXST 1990-1992FLST 1990-1992Additional...$20.45 -
V-Twin - 12-0507 - Pinion Shaft Gear End Nut
Motorshop
MSRP: $16.30$16.14V-Twin - 12-0507 - Pinion Shaft Gear End NutDescriptionPinion shaft gear end nut fits 1954-1989 Big Twin models. Fits:FXST 1984-1989FX 1954-1984FXR 1982-1989FLST 1986-1989FL 1954-1984FLT...MSRP: $16.30$16.14 -
V-Twin - 12-0499 - Engine Case 1/4 inch Welch Plug - Fits 1948-1969 Harley-Davidson FL
V-Twin Mfg
$5.82Engine case 1/4" welch plug for early cases.Welch plug is used to seal passages created for internal oiling, on oil pump body and engine case. The welch plug expands for a permanent seal when hit...$5.82 -
V-Twin - 12-0479 - 1936 Oil Pump Assembly
Motorshop
$723.95V-Twin - 12-0479 - 1936 Oil Pump Assembly Description Oil pump assembly for 1936 only. Body accepts steel line for gauge mounted in dash. Fits: EL 1936-1936 Additional Information$723.95 -
V-Twin - 12-0477 - Knucklehead Oil Pump Assembly - Fits 1937-1940 Harley-Davidson EL
Motorshop
MSRP: $696.03$591.16V-Twin - 12-0477 - Knucklehead Oil Pump Assembly Description Knucklehead oil pump assembly is for 1936-1940 EL but accurate for late 1938-1940 EL. Assembly accepts replica oil pressure sending unit...MSRP: $696.03$591.16 -
V-Twin - 12-0464 - Replica Oil Pump Rebuild Kit
Motorshop
$380.73V-Twin - 12-0464 - Replica Oil Pump Rebuild KitDescriptionReplica oil pump rebuild kit includes all components to assemble a bare body. Fits:FL 1952-1964Additional Information$380.73 -
V-Twin - 12-0456 - Knucklehead Oil Pump Body Silver
Motorshop
$285.12V-Twin - 12-0456 - Knucklehead Oil Pump Body SilverDescriptionKnucklehead oil pump body has oil pressure switch threaded hole on extreme right side and is painted silver.Accepts scavenger gear,...$285.12 -
V-Twin - 12-0452 - Knucklehead Oil Pump Body - Fits 1936-1940 Harley-Davidson EL
Motorshop
$293.76V-Twin - 12-0452 - Knucklehead Oil Pump Body Description Knucklehead oil pump body has oil pressure switch threaded hole on extreme right side.Accepts scavenger gear, scavenger idler gear, feed...$293.76 -
V-Twin - 12-0434 - Left Crankcase Oversize Main Bearing Cup and Cone
Timken
$58.36V-Twin - 12-0434 - Left Crankcase Oversize Main Bearing Cup and ConeDescriptionTimken left crankcase oversize bearing cup and cone is .112 oversize. Use when cast in steel insert in left case is...$58.36 -
V-Twin - 12-0431 - Left Crankcase Main Bearing Set
Motorshop
$58.67V-Twin - 12-0431 - Left Crankcase Main Bearing SetDescriptionV-twin left crankcase main bearing set is factory assembled with correct spacer for proper end play.Sold as a pair. Fits:XL...$58.67 -
V-Twin - 12-0430 - Left Crankcase Main Bearing Set
Motorshop
$87.15V-Twin - 12-0430 - Left Crankcase Main Bearing SetDescriptionV-Twin left crankcase main bearing set is factory assembled with correct spacer for proper end play.Sold as a pair. Fits:XL...$87.15 -
V-Twin - 12-0428 - Left Crankcase Main Bearing Set
Motorshop
$70.51V-Twin - 12-0428 - Left Crankcase Main Bearing SetDescriptionReplica left crankcase main bearing set is factory assembled with correct spacers for proper end play, for the left side bearing assembly...$70.51 -
V-Twin - 12-0425 - Cam Gear Bearing
Motorshop
MSRP: $19.64$19.44V-Twin - 12-0425 - Cam Gear BearingDescriptionCam gear bearing.For use with bearing, as listed. Fits:XL 1957-1990Additional InformationMSRP: $19.64$19.44
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.