Engine
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V-Twin - 14-0128 - V-Twin Clutch Hub Seal - Fits 1957-1968 Harley-Davidson XL
V-Twin Mfg
$15.70Clutch hub seal Fits:XL 1957-1968Additional Information OEM No.37740-57 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages880$15.70 -
V-Twin - 14-0127 - Clutch Gear Seal - Fits 1955-1969 Harley-Davidson XL
V-Twin Mfg
$19.66Clutch gear seal Fits:XL 1955-1969Additional Information OEM No.37531-56B UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages869$19.66 -
V-Twin - 14-0125 - V-Twin Clutch Rod Oil Seal - Fits 1952-1956 Harley-Davidson K, 1957-1970 XL
V-Twin Mfg
$13.72Clutch rod oil seal Fits:K 1952-1956XL 1957-1970Additional Information OEM No.37339-53 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages880$13.72 -
V-Twin - 14-0119 - V-Twin Engine Seal - Fits 1974-1984 Harley-Davidson XL (transmission), 1974-2003 XL (engine)
V-Twin Mfg
$11.74Engine seal for use as a transmission mainshaft oil seal or on the crank case as a sprocket shaft oil seal. Fits:XL 1974-1984 transmissionXL 1974-2003 engineAdditional Information OEM No.35151-74 UOM5 - PK ManufacturerV-Twin OriginImported 2025...$11.74 -
V-Twin - 14-0118 - V-Twin Shaft Seal - Fits 1952-1956 Harley-Davidson K (engine and transmission), 1957-1974 XL (engine and transmission)
V-Twin Mfg
$22.96Shaft seal Fits:K 1952-1956 engine and transmissionXL 1957-1974 engine and transmissionAdditional Information OEM No.35151-52A UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages844$22.96 -
V-Twin - 14-0117 - Oil Seal - Fits 1937-1948 Harley-Davidson UL, 1971-1979 FX, 1937-1940 EL, 1941-1979 FL
V-Twin Mfg
$14.41Oil seals for shifter cam Fits:UL 1937-1948FX 1971-1979EL 1937-1940FL 1941-1979Additional Information OEM No.34036-36 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages537$14.41 -
V-Twin - 14-0115 - Starter Crank Seal - Fits 1937-1948 Harley-Davidson UL, 1971-1984 FX, 1941-1984 FL, 1937-1940 EL
V-Twin Mfg
$24.83Starter crank seal Fits:UL 1937-1948FX 1971-1984FL 1941-1984EL 1937-1940Additional Information OEM No.33076-37 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages541$24.83 -
V-Twin - 14-0114 - V-Twin Oil Pump Seal
V-Twin Mfg
$25.37V-Twin - 14-0114 - V-Twin Oil Pump SealDescriptionOil Pump Seal Fits:FXST 1984-1998FXR 1982-1994FX 1971-1984FXD 1991-1998FLT 1979-UPFLST 1986-1998FL 1968-1984Additional Information OEM No.26227-58 UOM5 - PK ManufacturerV-Twin OriginImported 2025...$25.37 -
V-Twin - 14-0113 - Intake Manifold Seal - Fits 1978-1984 Harley-Davidson XL, FL, FX
V-Twin Mfg
$25.37Intake manifold seals prevent vacuum leaks and seals coolant passages between the intake manifold and cylinder head. Fits:XL 1978-1984FL 1978-1984FX 1978-1984Additional Information OEM No.27062-78 UOM10 - PK ManufacturerV-Twin OriginUSA 2025 Catalog...$25.37 -
V-Twin - 14-0110 - V-Twin Transmission to Starter Seal - Fits 1980-1984 Harley-Davidson FLT, 1982-1984 FXR
V-Twin Mfg
$17.68Transmission to starter seal Fits:FLT 1980-1984FXR 1982-1984Additional Information OEM No.12043 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages1315$17.68 -
V-Twin - 14-0109 - V-Twin Oil Pump Seal - Fits 1977-1990 Harley-Davidson XL
V-Twin Mfg
$13.72Oil pump seal Fits:XL 1977-1990Additional Information OEM No.12036-A UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages864$13.72 -
V-Twin - 14-0106 - Main Drive Seal - Fits 1986-1990 Harley-Davidson FLST, 1965-1984 FL, 1971-1984 FX, 1986-1990 FXST, 1984-1990 FXR, 1979-1990 FLT
V-Twin Mfg
$22.96Main drive gear seal. Fits:FLST 1986-1990FL 1965-1984FX 1971-1984FXST 1986-1990FXR 1984-1990FLT 1979-1990Additional Information OEM No.12013A UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages533$22.96 -
V-Twin - 14-0104 - V-Twin Inner Primary Seal - Fits 1971-1984 Harley-Davidson FX, 1970-1984 FL (4-speed)
V-Twin Mfg
$27.71Inner primary seal, 5 pack Fits:FX 1971-1984FL 1970-1984 4-speedAdditional Information OEM No.12018 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages754$27.71 -
V-Twin - 14-0103 - V-Twin Clutch Hub Seal Kit - Fits 1965-1984 Harley-Davidson FL, 1971-1984 FX
V-Twin Mfg
$25.37Clutch hub seal kit includes 5 seals. Fits:FL 1965-1984FX 1971-1984Additional Information OEM No.12014 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages547$25.37 -
V-Twin - 14-0102 - Shaft Cover Seal
V-Twin Mfg
$28.33V-Twin - 14-0102 - Shaft Cover SealDescriptionShaft cover seal Fits:FX 1979-1984XL 1986-UPFL 1979-1984Additional Information OEM No.12010 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages536$28.33 -
V-Twin - 14-0100 - V-Twin Point Cover Seal - Fits 1971-2003 Harley-Davidson XL
V-Twin Mfg
$24.83Point cover seal Fits:XL 1971-2003Additional Information OEM No.11124 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages843$24.83 -
V-Twin - 14-0033 - Oil Pressure Seal Washer
Eastern Motorcycle Parts
MSRP: $14.36$12.92V-Twin - 14-0033 - Oil Pressure Seal WasherDescriptionOil pressure seal washers.Sold as a 10 pack. Fits:FXST 1984-1998FXR 1982-1994FLT 1979-1998FX 1971-1984FXD 1991-1998FL 1950-1984FLST 1986-1998Additional Information OEM No.6377 UOM10 - PK ...MSRP: $14.36$12.92 -
V-Twin - 14-0032 - V-Twin Body Plug Seal Washer
Eastern Motorcycle Parts
MSRP: $13.86$12.47V-Twin - 14-0032 - V-Twin Body Plug Seal WasherDescriptionBody plug seal washer Fits:FX 1971-1978FL 1954-1978Additional Information OEM No.6581 UOM10 - PK ManufacturerEastern OriginUSA 2025 Catalog Pages493MSRP: $13.86$12.47 -
V-Twin - 14-0031 - Oil Pump Adjuster Screw Gasket
Eastern Motorcycle Parts
MSRP: $16.42$14.77V-Twin - 14-0031 - Oil Pump Adjuster Screw GasketDescriptionThis oil pump adjuster screw gasket has a brass finish and measures 3/16" X 3/8". Fits:FL 1941-1969W 1932-1952VL 1932-1934EL 1936-1940Additional Information OEM No.6156 UOM10 - PK ...MSRP: $16.42$14.77 -
V-Twin - 14-0029 - V-Twin Pushrod Seals
V-Twin Mfg
$24.77V-Twin - 14-0029 - V-Twin Pushrod SealsDescriptionThese large pushrod silicone seals are lathe cut, then ground with perfect O.D. finish and can withstand heat, oil and gas.Sold as a pack of 10. Fits:FXR 1982-1994FXD 1991-2017FX 1971-1984FLST...$24.77 -
V-Twin - 14-0028 - V-Twin Pushrod Seals
V-Twin Mfg
$97.81V-Twin - 14-0028 - V-Twin Pushrod SealsDescriptionThese small pushrod silicone seals are lathe cut, then ground with perfect O.D. finish and can withstand heat, oil and gas.Sold as a pack of 50. Fits:XL 1957-UPFXR 1982-1994FXD 1991-2017FX 1971-1984EL...$97.81 -
V-Twin - 14-0026 - V-Twin Oil Pump Hardware & Gasket Kit - Fits 1981-1991 Harley-Davidson FLT, FXR, 1991 FXD, 1981-1984 FL, 1986-1991 FLST, 1984-1991 FXST
V-Twin Mfg
$19.44This paper type oil pump gasket kit includes gaskets, seals, snap ring, balls and keys. Fits:FLT 1981-1991FXR 1981-1991FXD 1991-1991FL 1981-1984FLST 1986-1991FXST 1984-1991Additional Information UOM1 - KIT ManufacturerV-Twin OriginImported 2025...$19.44 -
V-Twin - 14-0025 - Oil Pump Hardware & Gasket Kit - Fits 1971-1980 Harley-Davidson FX, 1968-1980 FL
V-Twin Mfg
$18.94This paper type oil pump gasket kit includes gaskets, seals, snap ring, balls, spring, and keys. Fits:FX 1971-1980FL 1968-1980Additional Information UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog Pages493 Replacement Items15-0127 - V-Twin...$18.94 -
V-Twin - 14-0009 - Oil Pump Hardware & Gasket Kit - Fits 1950-1967 Harley-Davidson FL
V-Twin Mfg
$27.24This paper type oil pump gasket kit includes gaskets, seals, snap ring, balls and keys Fits:FL 1950-1967Additional Information UOM1 - KIT ManufacturerV-Twin OriginUSA 2025 Catalog Pages493 Replacement Items15-0126 - James Inner Oil Pump...$27.24 -
V-Twin - 14-0006 - M8 Primary Derby O-Rings
V-Twin Mfg
$71.78Primary derby o-rings for M8 models.Sold as a pack of 10. Fits: FLSB 2019-2022 FXBR 2019-2019 FXSDRS 2019-2020 FXFB 2019-2020 FLHCS 2019-2022 FXLRS 2020-2022 FLFB 2019-2020 FXLRST 2022-2022 FXRST 2022-2022 FXBB 2019-2020 FXBBS...$71.78 -
V-Twin - 13-9523 - Valve Spring Set - Fits 1936-1940 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$64.02Replica type valve spring set has 4 inner and 4 outer springs for Knuckleheads.Spring has an outer diameter that measures 1.638". Spring wire manufactured in Japan. Fits:EL 1936-1940FL 1941-1947Additional Information OEM No.18203-36 UOM8 - SET ...$64.02 -
V-Twin - 13-9251 - High Lift Valve Springs
Andrews
MSRP: $75.22$67.69V-Twin - 13-9251 - High Lift Valve SpringsDescriptionAndrews high lift valve springs .550+, no machining required . Includes 4 inner and 4 outer springs.Sold as a 4 piece set. Fits:FLT 1999-2016XL 1986-UPFLST 1999-2017FXST 1999-2017FXR 1984-1994FXD...MSRP: $75.22$67.69 -
V-Twin - 13-9250 - HI-Lift Valve Spring Set
Andrews
MSRP: $77.63$69.87V-Twin - 13-9250 - HI-Lift Valve Spring SetDescriptionAndrews hi-lift valve spring setSold as a set of 4. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information UOM1 - SET ManufacturerAndrews OriginUSA 2025 Catalog Pages519MSRP: $77.63$69.87 -
V-Twin - 13-9226 - Valve Spring Kit
S&S Cycle
$321.00V-Twin - 13-9226 - Valve Spring KitDescriptionS&S valve spring kit is to be used with stock style guides and lower spring collars, 3/8" valves and stock keepers. Kit includes top collar and springs.By grinding .060 to .090 off the tops of the valve...$321.00 -
V-Twin - 13-9214 - Valve Spring Set
Eastern Motorcycle Parts
MSRP: $49.88$48.48V-Twin - 13-9214 - Valve Spring SetDescriptionValve spring set for 45" models.Set of four. Fits:G 1932-1940WL 1932-1940Additional Information OEM No.18201-32 UOM1 - SET ManufacturerEastern OriginUSA 2025 Catalog Pages802MSRP: $49.88$48.48 -
V-Twin - 13-9211 - Sifton Valve Spring Kit
Motorshop
$133.31V-Twin - 13-9211 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:XL 1957-1981Additional Information UOM1 - KIT ManufacturerMotorshop OriginUSA 2025 Catalog Pages853 Replacement...$133.31 -
V-Twin - 13-9207 - Sifton Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $79.08$77.10V-Twin - 13-9207 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:XL 1983-1985Additional Information UOM1 - KIT ManufacturerEastern OriginUSA 2025 Catalog Pages853MSRP: $79.08$77.10 -
V-Twin - 13-9206 - Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $79.67$71.70V-Twin - 13-9206 - Valve Spring KitDescriptionValve spring kit includes springs, collars and keepers. Fits:K 1954-1956Additional Information UOM1 - KIT ManufacturerEastern OriginUSA 2025 Catalog Pages820MSRP: $79.67$71.70 -
V-Twin - 13-9205 - Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $79.67$71.70V-Twin - 13-9205 - Valve Spring KitDescriptionValve spring set includes springs, collars and keepers for K models. Fits:K 1952-1953Additional Information UOM1 - KIT ManufacturerEastern OriginUSA 2025 Catalog Pages820MSRP: $79.67$71.70 -
V-Twin - 13-9202 - Pinion Shaft Seal Ring Spring
Eastern Motorcycle Parts
MSRP: $23.51$21.98V-Twin - 13-9202 - Pinion Shaft Seal Ring SpringDescriptionPinion shaft seal ring spring Fits:UL 1937-1948 74" and 80"Additional Information OEM No.24700-37 UOM10 - PK ManufacturerEastern OriginUSA 2025 Catalog Pages798MSRP: $23.51$21.98 -
V-Twin - 13-9196 - Sifton Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $92.23$89.92V-Twin - 13-9196 - Sifton Valve Spring KitDescriptionSifton valve spring kit includes all springs, collars and keepers necessary. Fits:FXST 1984-1998XL 1986-UPFLT 1986-1998FXD 1991-1998FXR 1984-1994FLST 1986-1998Additional Information UOM1 - KIT ...MSRP: $92.23$89.92 -
V-Twin - 13-9195 - Valve Spring Kit
Motorshop
$94.99V-Twin - 13-9195 - Valve Spring KitDescriptionValve spring kit includes all springs, collars and keepers necessary for application. Fits:FXR 1982-1983FLT 1981-1983FL 1981-1984FX 1981-1984Additional Information UOM1 - KIT ManufacturerMotorshop ...$94.99 -
V-Twin - 13-9192 - Valve Spring Kit Chrome
Sifton
$110.50V-Twin - 13-9192 - Valve Spring Kit ChromeDescriptionSifton chrome valve spring kit includes four outer springs, four inner springs, four lower collars, four upper collars, and four pair of keepers necessary for application. Fits:EL 1936-1940FL...$110.50 -
V-Twin - 13-9191 - Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $92.23$89.92V-Twin - 13-9191 - Valve Spring KitDescriptionValve spring kit includes all springs, collars and keepers necessary for application. Fits:UL 1937-1948Additional Information UOM1 - KIT ManufacturerEastern OriginUSA 2025 Catalog Pages802MSRP: $92.23$89.92 -
V-Twin - 13-9190 - Valve Spring Kit
Eastern Motorcycle Parts
MSRP: $81.46$79.42V-Twin - 13-9190 - Valve Spring KitDescriptionValve spring kit includes all springs, collars and keepers necessary for application. Fits:VL 1930-1936Additional Information UOM1 - KIT ManufacturerEastern OriginUSA 2025 Catalog Pages802MSRP: $81.46$79.42
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.