Engine
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V-Twin - 11-0657 - Valve Spring Collar and Spacer Kit
Motorshop
MSRP: $71.55$70.83V-Twin - 11-0657 - Valve Spring Collar and Spacer KitDescriptionValve spring collar and spacer kit. Fits:UL 1930-1948Additional InformationMSRP: $71.55$70.83 -
V-Twin - 11-0653 - Nickel Exhaust Valve Seat
Motorshop
MSRP: $44.67$43.78V-Twin - 11-0653 - Nickel Exhaust Valve SeatDescriptionStock replacement exhaust valve seat, nickel type, for Big Twin models. For use with leaded or unleaded gasolineMSRP: $44.67$43.78 -
V-Twin - 11-0651 - Nickel Intake Valve Seat
Motorshop
MSRP: $44.67$43.78V-Twin - 11-0651 - Nickel Intake Valve SeatDescriptionStock replacement intake valve seat, nickel type, for Big Twin models. For use with leaded or unleaded gasoline.MSRP: $44.67$43.78 -
V-Twin - 11-0648 - Steel Upper Valve Collar Set
Motorshop
MSRP: $39.40$38.61V-Twin - 11-0648 - Steel Upper Valve Collar SetDescriptionUpper valve collar, steel for 61", 74" and 80" models.Set of four. Fits:FXR 1982-1983FLT 1981-1983FL 1981-1984FX 1981-1984Additional...MSRP: $39.40$38.61 -
V-Twin - 11-0647 - Lower Valve Collar Set
Eastern Motorcycle Parts
MSRP: $42.89$38.21V-Twin - 11-0647 - Lower Valve Collar SetDescriptionCollar set for lower valveSet of four. Fits:EL 1936-1940FL 1941-1947Additional InformationMSRP: $42.89$38.21 -
V-Twin - 11-0644 - Upper Valve Collar Set
Motorshop
$49.13V-Twin - 11-0644 - Upper Valve Collar SetDescriptionUpper steel valve collar set for Big Twin models. Fits:FLT 1979-1983FX 1971-1984EL 1936-1940FL 1941-1984FXR 1982-1983Additional Information$49.13 -
V-Twin - 11-0643 - Oversize Intake Valve Seat
Motorshop
$31.72V-Twin - 11-0643 - Oversize Intake Valve SeatDescriptionOversize intake valve seat is 2-1/16" x 1.687 x 9/32". Can be used with unleaded gas. Replacement size is actual size of seat, which is...$31.72 -
V-Twin - 11-0642 - Oversize Intake Valve Seat
Motorshop
$31.72V-Twin - 11-0642 - Oversize Intake Valve SeatDescriptionOversize intake valve seat is 2" x 1.687 x 9/32". Can be used with unleaded gas. Replacement size is actual size of seat, which is supplied...$31.72 -
V-Twin - 11-0637 - 45 inch WL/G Piston Kit Standard
Motorshop
$215.73V-Twin - 11-0637 - 45 inch WL/G Piston Kit StandardDescriptionStandard piston kit with standard rings, 2 wrist pins and 4 circlips. For 45" models.Kit includes hasting rings. The piston measures 2...$215.73 -
V-Twin - 11-0636 - Cylinder Stud Insert
Sifton
MSRP: $38.69$37.92V-Twin - 11-0636 - Cylinder Stud InsertDescriptionCylinder stud insert only comes as 8 pieces. Fits:FXST 1986-1998FLT 1986-1998FXD 1991-1998FXR 1986-1994FLST 1986-1998Additional InformationMSRP: $38.69$37.92 -
V-Twin - 11-0631 - 900/1000cc Chrome Exhaust Valve - Fits 1958-1985 Harley-Davidson XL
V-Twin Mfg
$29.79Exhaust valve, chrome Fits:XL 1958-1985Additional Information OEM No.18080-58A UOM1 - EA <$29.79 -
V-Twin - 11-0630 - Chrome Intake Valve
Motorshop
MSRP: $15.86$15.70V-Twin - 11-0630 - Chrome Intake ValveDescriptionSifton chrome intake valve for Big Twin models Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional InformationMSRP: $15.86$15.70 -
V-Twin - 11-0628 - 1000cc Chrome Intake Valve
Motorshop
$24.18V-Twin - 11-0628 - 1000cc Chrome Intake ValveDescriptionIntake valve is chrome and measures 3.63" long. Fits:XL 1970-1985Additional Information$24.18 -
V-Twin - 11-0625 - Stainless Steel Intake Valve
Motorshop
MSRP: $19.86$19.66V-Twin - 11-0625 - Stainless Steel Intake ValveDescriptionSifton stainless steel intake valve for Shovelhead models. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional InformationMSRP: $19.86$19.66 -
V-Twin - 11-0621 - Lower Rocker Box Cover Hardware
Motorshop
$28.33V-Twin - 11-0621 - Lower Rocker Box Cover HardwareDescriptionEvolution lower rocker cover mounting hardware set includes all correct bolts, allen screws and washers necessary for bolting lower rock...$28.33 -
V-Twin - 11-0618 - 900/1000cc Nitrate Steel Exhaust Valve
Motorshop
MSRP: $15.86$15.70V-Twin - 11-0618 - 900/1000cc Nitrate Steel Exhaust ValveDescriptionNitrate steel exhaust valve has a racing stem 1-3/4" and has a tulip shape head for maximum flow. Fits:XL 1958-1985Additional...MSRP: $15.86$15.70 -
V-Twin - 11-0617 - 900/1000cc Nitrate Steel Exhaust Valve
Motorshop
MSRP: $19.86$19.66V-Twin - 11-0617 - 900/1000cc Nitrate Steel Exhaust ValveDescriptionNitrate steel exhaust valve Fits:XL 1958-1985Additional InformationMSRP: $19.86$19.66 -
V-Twin - 11-0615 - Nitrate Steel Exhaust Valve
Eastern Motorcycle Parts
MSRP: $38.13$33.97V-Twin - 11-0615 - Nitrate Steel Exhaust ValveDescriptionNitrate steel exhaust valve is 1/8" oversize for 1948-1985 Big Twin models. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1948-1984FL...MSRP: $38.13$33.97 -
V-Twin - 11-0614 - Nitrate Steel Exhaust Valve
Motorshop
MSRP: $37.85$37.09V-Twin - 11-0614 - Nitrate Steel Exhaust ValveDescriptionNitrate steel exhaust valve is manufactured with a special nitrided process which helps improve wear properties and also reduces friction...MSRP: $37.85$37.09 -
V-Twin - 11-0609 - 1000cc Nitrate Steel Intake Valve
Motorshop
MSRP: $15.86$15.70V-Twin - 11-0609 - 1000cc Nitrate Steel Intake ValveDescriptionNitrate steel intake valve measures 3.63" long. Fits:XL 1970-1985Additional InformationMSRP: $15.86$15.70 -
V-Twin - 11-0606 - Nitrate Steel Intake Valve
Motorshop
MSRP: $15.86$15.70V-Twin - 11-0606 - Nitrate Steel Intake ValveDescription1/16" oversize intake valve is made of nitrate steel. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional InformationMSRP: $15.86$15.70 -
V-Twin - 11-0605 - Nitrate Steel Intake Valve
Sifton
$27.92V-Twin - 11-0605 - Nitrate Steel Intake ValveDescriptionNitrate steel intake valve is manufactured with a special nitrided process which helps improve wear properties and also reduces friction...$27.92 -
V-Twin - 11-0601 - Steel Intake Valve
Sifton
MSRP: $44.67$43.78V-Twin - 11-0601 - Steel Intake ValveDescriptionSteel intake valve is for 45" Side Valve models.Intake valve measures 1-5/8". Fits:WL 1929-1952G 1929-1973Additional Information<MSRP: $44.67$43.78 -
V-Twin - 11-0595 - 883cc to 1200cc Cylinder and Piston Conversion Kit Black
Motorshop
$648.01V-Twin - 11-0595 - 883cc to 1200cc Cylinder and Piston Conversion Kit BlackDescription883cc to 1200cc XL Conversion cylinder and piston set includes 2 black finished with milled edge fin cylinders...$648.01 -
V-Twin - 11-0589 - 1200cc Cylinder and Piston Conversion Kit Black
Motorshop
$713.81V-Twin - 11-0589 - 1200cc Cylinder and Piston Conversion Kit BlackDescription1200cc XL Conversion cylinder and piston set includes 2 black finished with milled edge fin cylinders with fitted Wiseco...$713.81 -
V-Twin - 11-0585 - Rocker Box Chrome D-Ring Set
Motorshop
$67.58V-Twin - 11-0585 - Rocker Box Chrome D-Ring SetDescriptionChrome d-ring set for rocker boxes on XL models.Sold as a pair. Fits:XL 1991-2003Additional Information$67.58 -
V-Twin - 11-0584 - Rocker Box Breather Element
James Gaskets
MSRP: $33.64$31.45V-Twin - 11-0584 - Rocker Box Breather ElementDescriptionRocker box breather element. Fits:FLT 1999-2016FLST 1999-2017FXST 1999-2017FXD 1999-2017Additional InformationMSRP: $33.64$31.45 -
V-Twin - 11-0578 - Rocker Box Assembly Polished Finish
Motorshop
$649.74V-Twin - 11-0578 - Rocker Box Assembly Polished FinishDescriptionPolished rocker box assembly includes covers in polished finish, 4 arms, 4 shafts and chrome end shaft nuts for Shovelhead.*NOTE: May...$649.74 -
V-Twin - 11-0577 - Rocker Box Assembly Chrome Finish
Motorshop
$802.53V-Twin - 11-0577 - Rocker Box Assembly Chrome FinishDescriptionChrome rocker box assembly includes covers in chrome finish, 4 arms, 4 shafts and chrome end shaft nuts for Shovelhead.May have pits,...$802.53 -
V-Twin - 11-0571 - Rocker Arm Shaft Set
V-Twin Mfg
$62.23V-Twin - 11-0571 - Rocker Arm Shaft SetDescriptionSifton rocker arm 4 piece shaft set for 1986-up. Fits:FLT 1984-2016FXD 1991-2017XL 1986-UPFLST 1986-2017FXST 1984-2017FXR 1984-1994Additional...$62.23 -
V-Twin - 11-0570 - Rocker Arm Shaft Set - Fits 1979-1983 Harley-Davidson FLT, 1971-1984 FX, 1982-1983 FXR, 1966-1984 FL
V-Twin Mfg
$125.95Replica rocker arm shaft for 1966-1984 Big Twins. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information OEM No.$125.95 -
V-Twin - 11-0565 - 1200cc Cylinder and Piston Conversion Kit Silver
Motorshop
$713.81V-Twin - 11-0565 - 1200cc Cylinder and Piston Conversion Kit SilverDescriptionBig bore cylinder kit for 883-1200 conversion on Sportster models.Increase your horsepower with our V-Twin 883cc to...$713.81 -
V-Twin - 11-0558 - Rocker Arm Ball Stud
Motorshop
MSRP: $45.33$44.42V-Twin - 11-0558 - Rocker Arm Ball StudDescriptionRocker arm ball stud comes as 4 pieces. Fits:FL 1941-1947EL 1937-1940Additional InformationMSRP: $45.33$44.42 -
V-Twin - 11-0540 - Standard Rocker Arm Shaft
Motorshop
$153.89V-Twin - 11-0540 - Standard Rocker Arm ShaftDescriptionSifton Knucklehead rocker arm shaft set.Front intake measures 4-1/8" and has an actual ground surface of 4.115. Rear intake measures 3-5/8" and...$153.89 -
V-Twin - 11-0539 - Rocker Arm Shaft
Jims
MSRP: $120.41$117.43V-Twin - 11-0539 - Rocker Arm ShaftDescriptionJims rocker arm shaft has an outer diameter at the big end of .937" and the small end of .434". Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL...MSRP: $120.41$117.43 -
V-Twin - 11-0533 - 88 inch Evolution Big Bore Cylinder Black
Motorshop
$345.44V-Twin - 11-0533 - 88 inch Evolution Big Bore Cylinder BlackDescriptionIncrease your stock 80" Evolution engine with our big bore cylinder to 88" cubic inches.This is 3-5/8" black cylinder will have...$345.44 -
V-Twin - 11-0532 - 88 inch Evolution Big Bore Cylinder Silver
Motorshop
$270.68V-Twin - 11-0532 - 88 inch Evolution Big Bore Cylinder SilverDescriptionIncrease your stock 80" Evolution engine with our big bore cylinder to 88" cubic inches.This 3-5/8" silver cylinder will have...$270.68 -
V-Twin - 11-0531 - Intake Valve Oiler
Motorshop
$22.96V-Twin - 11-0531 - Intake Valve OilerDescriptionPanhead rear intake valve oiler for Big Twin models. Fits:FL 1948-1965Additional Information$22.96 -
V-Twin - 11-0530 - Intake Valve Oiler
Motorshop
MSRP: $22.30$20.85V-Twin - 11-0530 - Intake Valve OilerDescriptionPanhead front intake valve oiler for Big Twin models. Fits:FL 1948-1965Additional InformationMSRP: $22.30$20.85 -
V-Twin - 11-0528 - Rocker Arm Rear Exhaust Front Intake
Motorshop
$62.63V-Twin - 11-0528 - Rocker Arm Rear Exhaust Front IntakeDescriptionReplica rocker arm only includes one front intake and one rear exhaust and is complete with shafts. Fits:FL 1948-1965Additional...$62.63
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.