Engine
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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V-Twin - 14-0504 - V-Twin Primary Cover Filler Cap O-Ring - Fits 1971-1976 Harley-Davidson XL
V-Twin Mfg
$20.44Primary cover filler cap o-ring Fits:XL 1971-1976Additional Information OEM No.11106 UOM10 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages1314$20.44 -
V-Twin - 14-0501 - V-Twin Rocker Arm O-Ring - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1966-1984 FL, 1957-1985 XL
V-Twin Mfg
$16.14Rocker 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 Catalog Pages356$16.14 -
V-Twin - 14-0500 - V-Twin Tappet Guide O-Ring - Fits 1957-1985 Harley-Davidson XL
V-Twin Mfg
$23.97Tappet guide o-ring block Fits:XL 1957-1985Additional Information OEM No.11100 UOM10 - PK ManufacturerV-Twin OriginUSA 2025 Catalog Pages843$23.97 -
V-Twin - 14-0455 - Knucklehead Rocker Box Seal Kit for 1 Head - Fits 1936-1940 Harley-Davidson EL (rear only)
V-Twin Mfg
$94.99Knucklehead 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 piece kit includes one seal, steel extension tube and washers for 1 head...$94.99 -
V-Twin - 14-0451 - Knucklehead Rocker Box Seal Kit for 2 Heads - Fits 1936-1940 Harley-Davidson EL (rear only)
V-Twin Mfg
$149.88Knucklehead 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 piece kit includes 2 of each part included: seals, steel extension tube...$149.88 -
V-Twin - 14-0305 - M8 Twin Sprocket Shaft Seals - Fits 1970-1999 Harley-Davidson FLH
V-Twin Mfg
$35.41Twin sprocket shaft seal is sold in a pack of 5. Fits:FLH 1970-1999Additional Information UOM5 - PK ManufacturerV-Twin OriginUSA$35.41 -
V-Twin - 14-0260 - Valve Stem Seals
Crane
$10.67V-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...$10.67 -
V-Twin - 14-0259 - Valve Guide Seals - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1948-1984 FL
V-Twin Mfg
$14.98Sifton Veloprene coated valve stem seal, 4 piece, machining required. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1948-1984Additional Information UOM1 - SET MeasurementsAdditional InformationOuter Diameter: 0.584"Inner Diameter Large: 0...$14.98 -
V-Twin - 14-0257 - Valve Stem Seals
V-Twin Mfg
$19.44V-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...$19.44 -
V-Twin - 14-0256 - Valve Stem Seals - Fits 1991-2004 Harley-Davidson FXD, 1984-2004 FXST, 1986-2004 FLST, 1984-2004 FLT, 1984-1994 FXR
V-Twin Mfg
$15.70Provides 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.Veloprene coated valve stem seals are stock...$15.70 -
V-Twin - 14-0190 - Clutch Pushrod Seal
James Gaskets
MSRP: $45.35$40.40V-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$40.40 -
V-Twin - 14-0189 - V-Twin Rocker Line Oil Seal - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1966-1984 FL, 1957-1985 XL
V-Twin Mfg
$21.09Black 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 Catalog Pages746$21.09 -
V-Twin - 14-0186 - Mainshaft Rubber Gasket - Fits 1937-1948 Harley-Davidson UL, 1971-1979 FX, 1941-1977 FL, 1937-1940 EL
V-Twin Mfg
$13.72Mainshaft 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 Pages1315$13.72 -
V-Twin - 14-0185 - Left Side Crankcase Seal - Fits 1969 Harley-Davidson FL
V-Twin Mfg
$11.02Left 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" ManufacturerV-Twin OriginImported 2025 Catalog Pages486$11.02 -
V-Twin - 14-0180 - 40mm V-Twin CV Intake Manifold Seal
V-Twin Mfg
$24.83V-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...$24.83 -
V-Twin - 14-0178 - Oil Pressure Seal Washer
Eastern Motorcycle Parts
MSRP: $14.36$12.92V-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$12.92 -
V-Twin - 14-0177 - V-Twin Left Side Engine Case Replacement Seal Only - Fits 1955-1969 Harley-Davidson FL
V-Twin Mfg
$16.96Replacement seal for the left side engine case. Fits:FL 1955-1969Additional Information UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages486$16.96 -
V-Twin - 14-0173 - Valve Cover Seal
Eastern Motorcycle Parts
MSRP: $22.36$20.91V-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$20.91 -
V-Twin - 14-0172 - Rocker Arm Shaft Housing Seal - Fits 1941-1947 Harley-Davidson FL, 1938-1940 EL
V-Twin Mfg
MSRP: $41.25$37.50Knucklehead 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 ManufacturerV-Twin OriginImported 2025 Catalog Pages513MSRP: $41.25$37.50 -
V-Twin - 14-0171 - V-Twin Oil Seal for Rear Chain Cover Housing - Fits 1982-1984 Harley-Davidson FLT, FXRT
V-Twin Mfg
$39.07Oil 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 Catalog Pages766$39.07 -
V-Twin - 14-0160 - V-Twin Clutch Lever Seal - Fits 1984-1986 Harley-Davidson FLT, FXR
V-Twin Mfg
$35.19Clutch lever seal Fits:FLT 1984-1986FXR 1984-1986Additional Information OEM No.37101-84 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages871$35.19 -
V-Twin - 14-0159 - V-Twin Primary Housing Seal
V-Twin Mfg
$36.28V-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 Pages353$36.28 -
V-Twin - 14-0158 - V-Twin Inner Primary Starter Housing Seal - Fits 1984-1988 Harley-Davidson FXR, FLT, FXST, 1986-1988 FLST
V-Twin Mfg
$19.66Inner primary starter housing seal Fits:FXR 1984-1988FLT 1984-1988FXST 1984-1988FLST 1986-1988Additional Information OEM No.12051 UOM5 - PK ManufacturerV-Twin OriginImported 2025 Catalog Pages1315$19.66 -
V-Twin - 14-0154 - Oil Line Gasket
Eastern Motorcycle Parts
MSRP: $24.29$22.71V-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$22.71 -
V-Twin - 14-0150 - Sprocket Seal
V-Twin Mfg
$19.66V-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 Pages869$19.66 -
V-Twin - 14-0148 - Sifton Rocker Arm Seal Set - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1966-1984 FL
V-Twin Mfg
$20.85These 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 Information UOM4 - SET ManufacturerV-Twin ...$20.85 -
V-Twin - 14-0147 - V-Twin Rocker Line Oiler Seal - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1966-1984 FL, 1957-1985 XL
V-Twin Mfg
$29.79Rocker 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 Pages746$29.79 -
V-Twin - 14-0146 - Valve Guide Seals - Fits 1979-1984 Harley-Davidson FX, 1979-1983 FLT, 1982-1983 FXR, 1979-1984 FL
V-Twin Mfg
$37.69K-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 MeasurementsAdditional InformationInner Diameter: ...$37.69 -
V-Twin - 14-0143 - V-Twin Intake Valve Guide Oil Seal
Kibblewhite
MSRP: $13.52$12.16V-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$12.16 -
V-Twin - 14-0142 - Cam Cover Seal - Fits 1970-1984 Harley-Davidson FL, 1984-1998 FXST, 1982-1994 FXR, 1979-1998 FLT, 1971-1984 FX, 1991-1998 FXD, 1986-1998 FLST
V-Twin Mfg
$13.72Cam 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 2025 Catalog Pages1315$13.72 -
V-Twin - 14-0129 - V-Twin Mainshaft Clutch Hub Seal - Fits 1967-1970 Harley-Davidson XL (clutch hub), 1979-1981 FLT, 1979-1981 FX (main shaft), 1979-1981 FL
V-Twin Mfg
$25.37Clutch 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 OriginImported 2025 Catalog Pages534$25.37 -
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
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.