Engine
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V-Twin - 14-0505 - Carburetor Adapter O-Ring
V-Twin Manufacturing
MSRP: $7.86$6.48V-Twin - 14-0505 - Carburetor Adapter O-RingDescriptionCarburetor adapter o-ring Fits:XL 1957-1970FL 1967-1970Additional Information OEM No.11107 UOM10 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages1314MSRP: $7.86$6.48 -
V-Twin - 14-0504 - V-Twin Primary Cover Filler Cap O-Ring
V-Twin Manufacturing
MSRP: $21.86$16.83V-Twin - 14-0504 - V-Twin Primary Cover Filler Cap O-RingDescriptionPrimary cover filler cap o-ring Fits:XL 1971-1976Additional Information OEM No.11106 UOM10 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages1314MSRP: $21.86$16.83 -
V-Twin - 14-0501 - V-Twin Rocker Arm O-Ring
V-Twin Manufacturing
MSRP: $16.30$13.44V-Twin - 14-0501 - V-Twin Rocker Arm O-RingDescriptionRocker arm o-ring is sold in a pack of 10. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984XL 1957-1985Additional Information OEM No.11101 UOM10 - PK ManufacturerV-Twin OriginImported 2025...MSRP: $16.30$13.44 -
V-Twin - 14-0500 - V-Twin Tappet Guide O-Ring
V-Twin Manufacturing
MSRP: $23.31$19.73V-Twin - 14-0500 - V-Twin Tappet Guide O-RingDescriptionTappet guide o-ring block Fits:XL 1957-1985Additional Information OEM No.11100 UOM10 - PK ManufacturerV-Twin OriginUSA 2025 Catalog Pages843MSRP: $23.31$19.73 -
V-Twin - 14-0455 - Knucklehead Rocker Box Seal Kit for 1 Head
V-Twin Manufacturing
MSRP: $88.57$83.59V-Twin - 14-0455 - Knucklehead Rocker Box Seal Kit for 1 HeadDescriptionKnucklehead rocker box cover kit is for conversion and will fit 1938-47 late model valve spring cover set on 1936-38 models.Kit is for use on Knucklehead exhaust rocker shaft. Five...MSRP: $88.57$83.59 -
V-Twin - 14-0452 - Knucklehead Valve Guide Seal Set
V-Twin Manufacturing
MSRP: $23.14$17.81V-Twin - 14-0452 - Knucklehead Valve Guide Seal SetDescriptionValve guide seals for stock guides for Knucklheads.*NOTE: Sold as a set of 4. Fits:EL 1936-1940FL 1941-1947Additional Information UOM1 - SET ManufacturerV-Twin OriginImported 2025 Catalog...MSRP: $23.14$17.81 -
V-Twin - 14-0451 - Knucklehead Rocker Box Seal Kit for 2 Heads
V-Twin Manufacturing
MSRP: $144.19$139.89V-Twin - 14-0451 - Knucklehead Rocker Box Seal Kit for 2 HeadsDescriptionKnucklehead rocker box cover kit is for conversion and will fit 1938-47 late model valve spring cover set on 1936-38 models.Kit is for use on Knucklehead exhaust rocker shaft. Ten...MSRP: $144.19$139.89 -
V-Twin - 14-0305 - M8 Twin Sprocket Shaft Seals
V-Twin Manufacturing
MSRP: $34.44$29.16V-Twin - 14-0305 - M8 Twin Sprocket Shaft SealsDescriptionTwin sprocket shaft seal is sold in a pack of 5. Fits:FLH 1970-1999Additional Information UOM5 - PK ManufacturerV-Twin OriginUSAMSRP: $34.44$29.16 -
V-Twin - 14-0260 - Valve Stem Seals
Crane
$8.89V-Twin - 14-0260 - Valve Stem SealsDescriptionProvides maximum valve stem oil control as seals wipe excess oil from the valve stem by means of a unique spring loaded wiper assembly which prevents unwanted oil from reaching and contaminating the cylinder...$8.89 -
V-Twin - 14-0259 - Valve Guide Seals
V-Twin Manufacturing
MSRP: $15.14$12.49V-Twin - 14-0259 - Valve Guide SealsDescriptionSifton Veloprene coated valve stem seal, 4 piece, machining required. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1948-1984Additional Information UOM1 - SET MeasurementsAdditional InformationOuter...MSRP: $15.14$12.49 -
V-Twin - 14-0257 - Valve Stem Seals
V-Twin Manufacturing
MSRP: $19.64$16.20V-Twin - 14-0257 - Valve Stem SealsDescriptionProvides maximum valve stem oil control as seals wipe excess oil from the valve stem by means of a unique spring loaded wiper assembly which prevents unwanted oil from reaching and contaminating the cylinder...MSRP: $19.64$16.20 -
V-Twin - 14-0256 - Valve Stem Seals
V-Twin Manufacturing
MSRP: $15.86$13.08V-Twin - 14-0256 - Valve Stem SealsDescriptionProvides maximum valve stem oil control as seals wipe excess oil from the valve stem by means of a unique spring loaded wiper assembly which prevents unwanted oil from reaching and contaminating the cylinder...MSRP: $15.86$13.08 -
V-Twin - 14-0190 - Clutch Pushrod Seal
James Gaskets
MSRP: $45.35$33.66V-Twin - 14-0190 - Clutch Pushrod SealDescriptionClutch release rod oil seal. Fits:W 1941-1952Additional Information OEM No.12019 UOM5 - PK ManufacturerJames OriginUSA 2025 Catalog Pages809MSRP: $45.35$33.66 -
V-Twin - 14-0189 - V-Twin Rocker Line Oil Seal
V-Twin Manufacturing
MSRP: $22.56$17.37V-Twin - 14-0189 - V-Twin Rocker Line Oil SealDescriptionBlack rubber rocker line oil seal. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984XL 1957-1985Additional Information OEM No.63529-57 UOM50 - PK ManufacturerV-Twin OriginImported 2025...MSRP: $22.56$17.37 -
V-Twin - 14-0186 - Mainshaft Rubber Gasket
V-Twin Manufacturing
MSRP: $13.86$11.43V-Twin - 14-0186 - Mainshaft Rubber GasketDescriptionMainshaft rubber gasket sold in 5 pack Fits:UL 1937-1948FX 1971-1979FL 1941-1977EL 1937-1940Additional Information OEM No.35231-36 UOM10 - PK ManufacturerV-Twin OriginUSA 2025 Catalog Pages1315MSRP: $13.86$11.43 -
V-Twin - 14-0185 - Left Side Crankcase Seal
V-Twin Manufacturing
MSRP: $11.14$9.19V-Twin - 14-0185 - Left Side Crankcase SealDescriptionLeft side engine case seal.. Fits:FL 1969-1969Additional Information OEM No.24031-69 UOM1 - EA MeasurementsAdditional InformationInner Diameter: 1-1/4"Outer Diameter: 2-1/2" ...MSRP: $11.14$9.19 -
V-Twin - 14-0180 - 40mm V-Twin CV Intake Manifold Seal
V-Twin Manufacturing
MSRP: $24.15$20.45V-Twin - 14-0180 - 40mm V-Twin CV Intake Manifold SealDescription40mm CV coupler seal for in between the carburetor and intake manifold.*NTOE: Connects CV carburetor to manifold. Fits:FLST 1990-2017FXD 1991-2017FXST 1990-2017FLT 1990-UPFXR 1990-1994XL...MSRP: $24.15$20.45 -
V-Twin - 14-0178 - Oil Pressure Seal Washer
Eastern
MSRP: $14.36$10.77V-Twin - 14-0178 - Oil Pressure Seal WasherDescriptionSteel oil pressure seal washer for pressure switch and 45 banjo line measures 3/8" x 37/64" x 1/32". Fits:FL 1946-1957Additional Information OEM No.6375 UOM10 - PK ManufacturerEastern OriginUSA ...MSRP: $14.36$10.77 -
V-Twin - 14-0177 - V-Twin Left Side Engine Case Replacement Seal Only
V-Twin Manufacturing
MSRP: $17.14$14.14V-Twin - 14-0177 - V-Twin Left Side Engine Case Replacement Seal OnlyDescriptionReplacement seal for the left side engine case. Fits:FL 1955-1969Additional Information UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages486MSRP: $17.14$14.14 -
V-Twin - 14-0173 - Valve Cover Seal
Eastern
MSRP: $22.36$17.22V-Twin - 14-0173 - Valve Cover SealDescriptionValve cover seal Fits:UL 1937-1938VL 1930-1935Additional Information OEM No.18261-30 UOM10 - PK ManufacturerEastern OriginUSA 2025 Catalog Pages798 Replacement Items14-0170 - Seal Valve Spring CoverMSRP: $22.36$17.22 -
V-Twin - 14-0172 - Rocker Arm Shaft Housing Seal
V-Twin Manufacturing
MSRP: $42.09$34.38V-Twin - 14-0172 - Rocker Arm Shaft Housing SealDescriptionKnucklehead rocker arm shaft housing seal.Seals are constructed of pressed graphite material as original! Fits:FL 1941-1947EL 1938-1940Additional Information OEM No.17475-38 UOM4 - PK ...MSRP: $42.09$34.38 -
V-Twin - 14-0171 - V-Twin Oil Seal for Rear Chain Cover Housing
V-Twin Manufacturing
MSRP: $39.87$32.56V-Twin - 14-0171 - V-Twin Oil Seal for Rear Chain Cover HousingDescriptionOil seal for rear chain cover housingSold as a pair. Fits:FLT 1982-1984FXRT 1982-1984Additional Information OEM No.25414-82 UOM1 - SET ManufacturerV-Twin OriginImported 2025...MSRP: $39.87$32.56 -
V-Twin - 14-0160 - V-Twin Clutch Lever Seal
V-Twin Manufacturing
MSRP: $34.22$28.97V-Twin - 14-0160 - V-Twin Clutch Lever SealDescriptionClutch lever seal Fits:FLT 1984-1986FXR 1984-1986Additional Information OEM No.37101-84 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages871MSRP: $34.22$28.97 -
V-Twin - 14-0159 - V-Twin Primary Housing Seal
V-Twin Manufacturing
MSRP: $31.42$26.61V-Twin - 14-0159 - V-Twin Primary Housing SealDescriptionPrimary housing seal. Fits:FXD 1991-2017FLST 1986-2017FXST 1984-2017FLT 1984-UPFXR 1984-1994Additional Information OEM No.12052 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages353MSRP: $31.42$26.61 -
V-Twin - 14-0158 - V-Twin Inner Primary Starter Housing Seal
V-Twin Manufacturing
MSRP: $19.86$16.38V-Twin - 14-0158 - V-Twin Inner Primary Starter Housing SealDescriptionInner primary starter housing seal Fits:FXR 1984-1988FLT 1984-1988FXST 1984-1988FLST 1986-1988Additional Information OEM No.12051 UOM5 - PK ManufacturerV-Twin OriginImported 2025...MSRP: $19.86$16.38 -
V-Twin - 14-0154 - Oil Line Gasket
Eastern
MSRP: $24.29$18.70V-Twin - 14-0154 - Oil Line GasketDescriptionBrass Oil Line Gasket Fits:WL 1938-1952EL 1936-1941G 1938-1973Additional Information OEM No.6440B UOM20 - PK MeasurementsAdditional InformationOuter Diameter: 5/8"Inner Diameter: 13/32"Thickness:...MSRP: $24.29$18.70 -
V-Twin - 14-0150 - Sprocket Seal
V-Twin Manufacturing
MSRP: $19.86$16.38V-Twin - 14-0150 - Sprocket SealDescriptionSprocket seal fits behind the drive sprocket. Fits:XL 1984-UPAdditional Information OEM No.12049 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages869MSRP: $19.86$16.38 -
V-Twin - 14-0148 - Sifton Rocker Arm Seal Set
V-Twin Manufacturing
MSRP: $22.30$17.17V-Twin - 14-0148 - Sifton Rocker Arm Seal SetDescriptionThese Sifton no leak rocker arm seals are machined of a high grade nylon to replace o-rings. They will not crack, melt or shrink. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional...MSRP: $22.30$17.17 -
V-Twin - 14-0147 - V-Twin Rocker Line Oiler Seal
V-Twin Manufacturing
MSRP: $28.96$24.53V-Twin - 14-0147 - V-Twin Rocker Line Oiler SealDescriptionRocker Oil Line Seals Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984XL 1957-1985Additional Information OEM No.63529-57 UOM100 - PK ManufacturerV-Twin OriginImported 2025 Catalog...MSRP: $28.96$24.53 -
V-Twin - 14-0146 - Valve Guide Seals
V-Twin Manufacturing
MSRP: $38.45$31.41V-Twin - 14-0146 - Valve Guide SealsDescriptionK-line seals are solid Veloprene coated and a steel band to secure the seal to the guide. Fits:FX 1979-1984FLT 1979-1983FXR 1982-1983FL 1979-1984Additional Information OEM No.18000-81 UOM10 - PK ...MSRP: $38.45$31.41 -
V-Twin - 14-0144 - V-Twin Exhaust Valve Guide Oil Seal
Kibblewhite
MSRP: $13.52$10.14V-Twin - 14-0144 - V-Twin Exhaust Valve Guide Oil SealDescriptionExhaust valve guide oil seal is steel K-line brand with rubber seal. Fits:XL 1957-1985Additional Information UOM4 - SET ManufacturerKibblewhite OriginUSA 2025 Catalog Pages852MSRP: $13.52$10.14 -
V-Twin - 14-0143 - V-Twin Intake Valve Guide Oil Seal
Kibblewhite
MSRP: $13.52$10.14V-Twin - 14-0143 - V-Twin Intake Valve Guide Oil SealDescriptionIntake valve guide oil seal is steel K-line brand with rubber seal. Fits:XL 1957-1985Additional Information UOM4 - SET ManufacturerKibblewhite OriginUSA 2025 Catalog Pages852MSRP: $13.52$10.14 -
V-Twin - 14-0142 - Cam Cover Seal
V-Twin Manufacturing
MSRP: $13.86$11.43V-Twin - 14-0142 - Cam Cover SealDescriptionCam cover seal double lip Fits:FL 1970-1984FXST 1984-1998FXR 1982-1994FLT 1979-1998FX 1971-1984FXD 1991-1998FLST 1986-1998Additional Information OEM No.83162-51 UOM5 - PK ManufacturerV-Twin OriginImported ...MSRP: $13.86$11.43 -
V-Twin - 14-0130 - Transmission Mainshaft Seal
V-Twin Manufacturing
MSRP: $24.15$20.45V-Twin - 14-0130 - Transmission Mainshaft SealDescriptionTransmission mainshaft seal with rubber outside Fits:FXST 1984-1985FX 1982-1984FL 1982-1984Additional Information OEM No.37741-82 UOM5 - PK MeasurementsAdditional InformationOuter Diameter: 2...MSRP: $24.15$20.45 -
V-Twin - 14-0129 - V-Twin Mainshaft Clutch Hub Seal
V-Twin Manufacturing
MSRP: $24.67$20.89V-Twin - 14-0129 - V-Twin Mainshaft Clutch Hub SealDescriptionClutch hub oil seal, electric start Fits:XL 1967-1970 clutch hubFLT 1979-1981FX 1979-1981 main shaftFL 1979-1981Additional Information OEM No.37741-67 UOM5 - PK ManufacturerV-Twin ...MSRP: $24.67$20.89 -
V-Twin - 14-0128 - V-Twin Clutch Hub Seal
V-Twin Manufacturing
MSRP: $15.86$13.08V-Twin - 14-0128 - V-Twin Clutch Hub SealDescriptionClutch hub seal Fits:XL 1957-1968Additional Information OEM No.37740-57 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages880MSRP: $15.86$13.08 -
V-Twin - 14-0127 - Clutch Gear Seal
V-Twin Manufacturing
MSRP: $19.86$16.38V-Twin - 14-0127 - Clutch Gear SealDescriptionClutch gear seal Fits:XL 1955-1969Additional Information OEM No.37531-56B UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages869MSRP: $19.86$16.38 -
V-Twin - 14-0125 - V-Twin Clutch Rod Oil Seal
V-Twin Manufacturing
MSRP: $13.86$11.43V-Twin - 14-0125 - V-Twin Clutch Rod Oil SealDescriptionClutch rod oil seal Fits:K 1952-1956XL 1957-1970Additional Information OEM No.37339-53 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages880MSRP: $13.86$11.43 -
V-Twin - 14-0119 - V-Twin Engine Seal
V-Twin Manufacturing
MSRP: $11.86$9.78V-Twin - 14-0119 - V-Twin Engine SealDescriptionEngine 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 -...MSRP: $11.86$9.78 -
V-Twin - 14-0118 - V-Twin Shaft Seal
V-Twin Manufacturing
MSRP: $22.33$18.91V-Twin - 14-0118 - V-Twin Shaft SealDescriptionShaft 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 Pages844MSRP: $22.33$18.91
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.