Engine
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V-Twin - 13-0107 - Oil Pump Relief Valve Spring
Eastern Motorcycle Parts
$22.92V-Twin - 13-0107 - Oil Pump Relief Valve SpringDescriptionSpring for oil pump relief valve. Fits:FL 1952-1972FX 1971-1972Additional Information$22.92 -
V-Twin - 13-0106 - Pinion Shaft Breather Seal Spring
Eastern Motorcycle Parts
$24.18V-Twin - 13-0106 - Pinion Shaft Breather Seal SpringDescriptionSeal spring for pinion shaft breather. Fits:WL 1937-1952UL 1937-1948K 1954-1956G 1937-1973XL 1957-1962Additional Information$24.18 -
V-Twin - 13-0105 - Pinion Shaft Ring Spring
Eastern Motorcycle Parts
$23.68V-Twin - 13-0105 - Pinion Shaft Ring SpringDescriptionRing spring for pinion shaft. Fits:FL 1941-1969UL 1937-1948EL 1936-1940Additional Information$23.68 -
V-Twin - 13-0104 - Valve Spring Kit
Eastern Motorcycle Parts
$49.79V-Twin - 13-0104 - Valve Spring KitDescriptionValve spring kit includes required inner and outer springs.Set of eight. Fits:FXD 1991-2004FXST 1984-2004FLST 1986-2004FLT 1984-2004FXR...$49.79 -
V-Twin - 13-0103 - Pushrod Valve Cover Spring
Eastern Motorcycle Parts
$23.06V-Twin - 13-0103 - Pushrod Valve Cover SpringDescription4 piece Valve Cover Spring set Fits:UL 1939-1948 74" and 80" side valvesAdditional Information$23.06 -
V-Twin - 13-0102 - Sifton Valve Spring
Sifton
$64.10V-Twin - 13-0102 - Sifton Valve SpringDescriptionSifton valve spring only.Sold as an 8 piece set. Fits:XL 1957-1982Additional Information$64.10 -
V-Twin - 13-0101 - Pushrod Cover Spring
Eastern Motorcycle Parts
MSRP: $21.80$20.38V-Twin - 13-0101 - Pushrod Cover SpringDescriptionPushrod cover springs. Fits:FXD 1991-2017FX 1971-1984EL 1936-1940FL 1941-1984XL 1957-1989FLST 1986-2017FXST 1984-2017FLT 1979-UPFXR 1984-1994MSRP: $21.80$20.38 -
V-Twin - 13-0100 - Rocker Arm Springs
Eastern Motorcycle Parts
MSRP: $22.54$21.07V-Twin - 13-0100 - Rocker Arm SpringsDescriptionRocker arm springs is a OEM replacement. Fits:XL 1957-1985Additional InformationMSRP: $22.54$21.07 -
V-Twin - 12-9980 - Oil Pump Drive Gear
Eastern Motorcycle Parts
MSRP: $78.80$78.01V-Twin - 12-9980 - Oil Pump Drive Gear Description This is a high quality replacement oil pump drive gear with shaft. Fits: XL 1977-1990 Additional InformationMSRP: $78.80$78.01 -
V-Twin - 12-9972 - Chrome Oil Pump Assembly
Sifton
$410.32V-Twin - 12-9972 - Chrome Oil Pump Assembly Description Sifton oil pump assembly includes all necessary fittings, snap rings, keys, gaskets and mounting bolts for a complete installation. Oil pump...$410.32 -
V-Twin - 12-9948 - Scavenger Oil Pump Gear
Motorshop
$34.18V-Twin - 12-9948 - Scavenger Oil Pump Gear Description Oil pump scavenger gear*NOTE: Before assembly it is recommended to polish the bore, and face top of the pin next to the key way. Fits: XL...$34.18 -
V-Twin - 12-9943 - Pinion Shaft Drive Gear
S&S Cycle
$161.34V-Twin - 12-9943 - Pinion Shaft Drive Gear Description White pinion shaft drive gear, size 1.4751-1.4745 Fits: FXST 1984-1989 FX 1977-1984 FXR 1982-1989 FLST 1986-1989 FL 1977-1984 FLT...$161.34 -
V-Twin - 12-9942 - Pinion Shaft Drive Gear Green
S&S Cycle
MSRP: $142.56$127.50V-Twin - 12-9942 - Pinion Shaft Drive Gear Green Description Pinion shaft gear is green size, fits Big Twin models. Green gear size is 1.4721- 1.4715". Fits: FXST 1984-1989 FX 1977-1984 FXR...MSRP: $142.56$127.50 -
V-Twin - 12-9939 - Pinion Shaft Gear Black
Motorshop
$100.36V-Twin - 12-9939 - Pinion Shaft Gear Black Description Pinion shaft gear is black size, the smallest size gear. Black gear size is 1.4715- 1.4710". Fits: FXST 1984-1989 FX 1977-1984 FXR...$100.36 -
V-Twin - 12-9938 - Pinion Shaft Drive Gear Orange
S&S Cycle
MSRP: $142.56$127.50V-Twin - 12-9938 - Pinion Shaft Drive Gear Orange Description Pinion shaft gear is orange size, the largest size gear. Orange gear size is 1.4756- 1.4751". Fits: FXST 1984-1989 FX...MSRP: $142.56$127.50 -
V-Twin - 12-9930 - Oil Pump Assembly
Motorshop
$595.12V-Twin - 12-9930 - Oil Pump Assembly Description Oil pump assembly includes all parts assembled.Includes alternator roll pin, 3/8" clutch ball bearing, oil pump snap rings, oil pump body, oil pump...$595.12 -
V-Twin - 12-9886 - Cam Chest Breather Valve Washer .140
Motorshop
$4.95V-Twin - 12-9886 - Cam Chest Breather Valve Washer .140 Description .140 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$4.95 -
V-Twin - 12-9885 - Cam Chest Breather Valve Washer .135
Motorshop
$6.44V-Twin - 12-9885 - Cam Chest Breather Valve Washer .135 Description .135 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$6.44 -
V-Twin - 12-9884 - Cam Chest Breather Valve Washer .130
Motorshop
$6.44V-Twin - 12-9884 - Cam Chest Breather Valve Washer .130 Description .130 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$6.44 -
V-Twin - 12-9883 - Cam Chest Breather Valve Washer .125
Motorshop
$6.44V-Twin - 12-9883 - Cam Chest Breather Valve Washer .125 Description .125 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$6.44 -
V-Twin - 12-9882 - Cam Chest Breather Valve Washer .120
Motorshop
$3.92V-Twin - 12-9882 - Cam Chest Breather Valve Washer .120 Description .120 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$3.92 -
V-Twin - 12-9881 - Cam Chest Breather Valve Washer .115
Motorshop
$6.44V-Twin - 12-9881 - Cam Chest Breather Valve Washer .115 Description .115 Steel cam chest breather valve washer with a Large hole. Fits: FLT 1979-1981 FX 1979-1981 FL 1979-1981 Additional...$6.44 -
V-Twin - 12-8955 - Replica Red Rocker Arm Nut Set Zinc Plated
Motorshop
$19.76V-Twin - 12-8955 - Replica Red Rocker Arm Nut Set Zinc Plated Description Replica rocker arm nut set has a thread size of 7/16 x 20. These hex nuts with red tops are zinc plated.Sold as a set of 4...$19.76 -
V-Twin - 12-8952 - Oil Pump Breather Valve Gear
Eastern Motorcycle Parts
$130.79V-Twin - 12-8952 - Oil Pump Breather Valve Gear Description Oil pump breather valve gear Fits: XL 1960-1971 Additional Information$130.79 -
V-Twin - 12-8951 - Oil Pump Breather Valve Gear
Eastern Motorcycle Parts
$130.79V-Twin - 12-8951 - Oil Pump Breather Valve Gear Description Oil pump breather valve gear. Fits: K 1956-1956 XL 1957-1959 Additional Information$130.79 -
V-Twin - 12-8950 - Oil Pump Breather Valve Gear
Eastern Motorcycle Parts
$130.79V-Twin - 12-8950 - Oil Pump Breather Valve Gear Description Oil pump breather valve gear Fits: K 1952-1955 Additional Information$130.79 -
V-Twin - 12-8001 - Oil Pump Assembly
S&S Cycle
MSRP: $460.49$430.32V-Twin - 12-8001 - Oil Pump Assembly Description S&S billet oil pump assembly for 1936-1972 Big Twin models.Assembly includes supply gears, return gears, drive shaft, drive shaft keys, drive shaft...MSRP: $460.49$430.32 -
V-Twin - 12-6271 - Oil Pump Assembly
Motorshop
$627.34V-Twin - 12-6271 - Oil Pump Assembly Description Oil pump assembly includes all parts assembled. Fits: XLH 1962-1971 XLCH 1962-1971 Additional Information$627.34 -
V-Twin - 12-5240 - S&S Cam Installation Support Kit TC-88
S&S Cycle
MSRP: $95.29$85.70V-Twin - 12-5240 - S&S Cam Installation Support Kit TC-88 Description S&S cam installation support kit for TC-88 models includes cam cover gasket, two inner cam needle bearings, two outer cam...MSRP: $95.29$85.70 -
V-Twin - 12-4598 - .001 Engine Left Case Roller Bearing Set
Motorshop
$27.92V-Twin - 12-4598 - .001 Engine Left Case Roller Bearing Set Description Engine left case roller bearing set, .001 Fits: WL 1937-1952 WL 1932-1936 DL 1930-1931 G 1932-1973 Additional...$27.92 -
V-Twin - 12-2556 - Connecting Rod Bearing Set
S&S Cycle
MSRP: $141.09$127.50V-Twin - 12-2556 - Connecting Rod Bearing Set Description S&S connecting rod bearing set with 3 steel cages fitted with standard size Torrington rollers for connecting rods. Fits: UL...MSRP: $141.09$127.50 -
V-Twin - 12-2523 - Oil Pump Chain Adjuster Screw
Eastern Motorcycle Parts
MSRP: $17.86$17.68V-Twin - 12-2523 - Oil Pump Chain Adjuster Screw Description Chain oil adjuster screw with slot head. Sold each. Fits: FL 1970-1984 FXST 1984-1998 FXR 1982-1994 FLT 1979-1998 FX...MSRP: $17.86$17.68 -
V-Twin - 12-2122 - Rocker Arm Shim
Eastern Motorcycle Parts
MSRP: $16.58$16.41V-Twin - 12-2122 - Rocker Arm Shim Description Rocker arm shim 10 pack. Fits: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL 1966-1984 Additional InformationMSRP: $16.58$16.41 -
V-Twin - 12-2116 - Rocker Arm Spacer
Eastern Motorcycle Parts
MSRP: $20.48$19.14V-Twin - 12-2116 - Rocker Arm Spacer Description Used in between each pair of rocker arms these spacers are sold in a pack of 10. Fits: XL 1957-1983 Additional InformationMSRP: $20.48$19.14 -
V-Twin - 12-2115 - Rocker Arm Spacer
Motorshop
$24.83V-Twin - 12-2115 - Rocker Arm Spacer Description Used in between each pair of rocker arms these spacers are sold in a pack of 4. Fits: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL...$24.83 -
V-Twin - 12-2114 - Rocker Arm Stud Set
Motorshop
$37.09V-Twin - 12-2114 - Rocker Arm Stud Set Description Replica Panhead rocker arm eight piece stud set. Fits: FL 1948-1965 Additional Information$37.09 -
V-Twin - 12-2107 - Top Engine Mount Stud Set
Motorshop
$24.59V-Twin - 12-2107 - Top Engine Mount Stud Set Description Top engine mount stud set.Washers and nuts not included. Sold as a set of 4. Fits: FX 1971-1984 FL 1948-1984 Additional...$24.59 -
V-Twin - 12-2106 - Rocker Box Cover Zinc Finish Stud Set
Motorshop
$43.78V-Twin - 12-2106 - Rocker Box Cover Zinc Finish Stud Set Description Rocker box stud set for one head. Fits: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL 1966-1984 Additional Information$43.78 -
V-Twin - 12-2103 - Cylinder Base Stud Set
Motorshop
$24.18V-Twin - 12-2103 - Cylinder Base Stud Set Description Cylinder base stud set features heat treating and interference thread at cylinder base. Fits: XL 1972-1985 Additional Information$24.18 -
V-Twin - 12-2070 - Crankcase Breather Valve
S&S Cycle
$166.21V-Twin - 12-2070 - Crankcase Breather Valve Description Crankcase breather valve features 4 steel reed valves that will allow air and oil mist to escape from the engine crankcase.Breather fits...$166.21
Harley Engine
At Deadbeat Customs, we offer a wide selection of Harley engine parts built for performance, reliability, and long-lasting power. Whether you're rebuilding a vintage motor or upgrading a modern setup, we’ve got the top-end and bottom-end components you need to get the job done right.
We carry engine parts for a wide range of Harley Davidson models, including Dyna, Sportster, FXR, Touring, Softail, Shovelhead, and Panhead. From the classic Evo 1340 and Shovelhead to Twin Cam 88/96/103/110, and the modern Milwaukee-Eight 107/114/117, our catalog covers nearly every era of Harley engine design.
Choose from trusted brands like S&S Cycle, Fueling, Vance & Hines, and more—known for producing high-quality components that meet or exceed OEM standards.
Explore our full collection of Harley engine parts today and build your motor with confidence—because whether it’s vintage or modern, your Harley deserves the best from the inside out.