Engine
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Out of stock
V-Twin - 11-0888 - 103 inch Twin Cam Piston Kit
Motorshop
$246.40V-Twin - 11-0888 - 103 inch Twin Cam Piston KitDescription103" moly coated piston kit. Pistons are .005" oversize and features a 3.875" bore. Fits:FLST 2007-2017FXD 2007-2017FLT 2006-2016FXST 2007-2017Additional Information UOM1 - KIT ...$246.40 -
Out of stock
V-Twin - 11-0886 - 96 inch Twin Cam Piston Kit
Motorshop
$215.22V-Twin - 11-0886 - 96 inch Twin Cam Piston KitDescription96" moly coated piston kit. Pistons are .005" oversize and features a 3.750" bore. Fits:FXST 2007-2013FXD 2007-2013FLST 2007-2013FLT 2007-2013Additional Information UOM1 - KIT ...$215.22 -
Out of stock
V-Twin - 11-0883 - 95 inch Big Bore Twin Cam Cylinder and Piston Kit
Motorshop
$1,019.67V-Twin - 11-0883 - 95 inch Big Bore Twin Cam Cylinder and Piston KitDescription95" Big Bore kit will increase TC-88 engines to 95". Kit includes silver cylinders with 10.5 forged pistons.Pistons are pre fitted to cylinders with head gaskets and can be...$1,019.67 -
Out of stock
V-Twin - 11-0867 - XL Bare Rocker Box Set
Motorshop
$667.54V-Twin - 11-0867 - XL Bare Rocker Box SetDescriptionBare rocker box set polished as original in highlighted areas.For Ironhead models. *NOTE: Shafts, arms and internals are not included and must be ordered separately. Fits:XL 1957-1985Additional...$667.54 -
Out of stock
V-Twin - 11-0864 - Cylinder Head Set With Rocker Assembly
Motorshop
$3,475.18V-Twin - 11-0864 - Cylinder Head Set With Rocker AssemblyDescriptionKnucklehead cylinder head set features original cast iron with natural finish. Head set includes valves, springs, collars, and guides with parkerized upper and lower valve cover sets...$3,475.18 -
Out of stock
V-Twin - 11-0863 - Chrome Shovelhead Top End Kit
V-Twin Mfg
$2,431.85V-Twin - 11-0863 - Chrome Shovelhead Top End KitDescriptionTop end kit includes pre fitted 80" cylinder set with 8:1 pistons, heads, chrome rocker boxes, cylinder base nuts, rocker box studs, nuts and top end gasket kit.Kit includes fully assembled late...$2,431.85 -
Out of stock
V-Twin - 11-0855 - Polished Rocker Box Assembly Set
Motorshop
$318.27V-Twin - 11-0855 - Polished Rocker Box Assembly SetDescriptionFront and rear rocker box assembly set with polished aluminum highlights, as OEM, for XL models.Includes shafts, rocker arms, nuts and end case. Fits:XL 1957-1985Additional Information OEM No...$318.27 -
Out of stock
V-Twin - 11-0852 - 883cc to 1200 cc Conversion Piston Set Standard 3.498 inch
Motorshop
$156.33V-Twin - 11-0852 - 883cc to 1200 cc Conversion Piston Set Standard 3.498 inchDescriptionSifton piston kit includes moly coated pistons and Hastings rings. Converts 883cc to 1200cc with use of reverse dome piston.Piston set has a 9.5:1 compression...$156.33 -
Out of stock
V-Twin - 11-0847 - 3-5/16 inch Piston Set .010 Oversize
Motorshop
$285.53V-Twin - 11-0847 - 3-5/16 inch Piston Set .010 OversizeDescriptionPiston set with 3-5/16" bore is .010 oversize. Set includes hasting 3 piece ring, 2 wrist pins, and 4 circlips. Pistons have a steel expansion control strut cast.*NOTE: Run engine at...$285.53 -
Out of stock
V-Twin - 11-0821 - Lower Valve Collar Kit
Sonnax
MSRP: $74.70$67.23V-Twin - 11-0821 - Lower Valve Collar KitDescriptionSifton lower collar and seal kit includes 4 lower collars machined to accept K line style seals. 2 intake seals and 2 exhaust seals included.Top of guide must be machined to accept seals. Seal...MSRP: $74.70$67.23 -
Out of stock
V-Twin - 11-0796 - Nitrate Valve and Spring Kit
Sifton
$142.11V-Twin - 11-0796 - Nitrate Valve and Spring KitDescriptionSifton valve and spring kit for Shovelhead models includes 2 intake and 2 exhaust valve with nitrate finish, complete spring set, keepers with upper and lower collars. Fits:FLT 1979-1983FX...$142.11 -
Out of stock
V-Twin - 11-0795 - Nitrate Valve and Spring Kit
Sifton
$189.97V-Twin - 11-0795 - Nitrate Valve and Spring KitDescriptionSifton valve and spring kit for Shovelhead models includes 2 intake and 2 exhaust valve with nitrate finish, complete spring set, keepers with upper and lower collars. Fits:FL 1980-1981FLT...$189.97 -
Out of stock
V-Twin - 11-0794 - Nitrate Valve and Spring Kit
Sifton
$226.56V-Twin - 11-0794 - Nitrate Valve and Spring KitDescriptionSifton valve and spring kit for Shovelhead models includes 2 intake and 2 exhaust valve with nitrate finish, complete spring set, keepers with upper and lower collars. Fits:FX 1971-1979FL...$226.56 -
Out of stock
V-Twin - 11-0724 - Cast Iron .002 Exhaust Valve Guide
Motorshop
MSRP: $17.86$17.68V-Twin - 11-0724 - Cast Iron .002 Exhaust Valve GuideDescription.002 cast iron exhaust valve guideInner diameter is .3395-.3400. May have to be honed for final fit. Fits:XL 1957-1982Additional Information OEM No.18172-57B UOM1 - EA ...MSRP: $17.86$17.68 -
Out of stock
V-Twin - 11-0723 - Cast Iron .001 Exhaust Valve Guide
Motorshop
MSRP: $17.86$17.68V-Twin - 11-0723 - Cast Iron .001 Exhaust Valve GuideDescription.001 cast iron exhaust valve guideInner diameter is .3395-.3400. May have to be honed for final fit. Fits:XL 1957-1982Additional Information OEM No.18171-57B UOM1 - EA ...MSRP: $17.86$17.68 -
Out of stock
V-Twin - 11-0688 - Cast Iron .003 Exhaust Valve Guide
V-Twin Mfg
MSRP: $13.72$12.47V-Twin - 11-0688 - Cast Iron .003 Exhaust Valve GuideDescription.003 exhaust valve guide, cast iron Fits:FX 1971-1978FL 1948-1978Additional Information UOM1 - EA ManufacturerV-Twin MaterialCast Iron OriginImported Size.003 2025 Catalog Pages518MSRP: $13.72$12.47 -
Out of stock
V-Twin - 11-0679 - Nitrate Intake and Exhaust Valve Set
Motorshop
$103.55V-Twin - 11-0679 - Nitrate Intake and Exhaust Valve SetDescriptionSifton nitrate intake and exhaust valve set includes 2 intake and 2 exhaust valves. Fits:FLT 1979-1983FX 1971-1984FXR 1982-1983FL 1966-1984Additional Information UOM4 - SET ...$103.55 -
Out of stock
V-Twin - 11-0529 - Rocker Arm Front Exhaust Rear Intake
Motorshop
$54.91V-Twin - 11-0529 - Rocker Arm Front Exhaust Rear IntakeDescriptionReplica rocker arm only for front exhaust and rear intake. Fits:FL 1948-1965Additional Information OEM No.17375-48 UOM1 - EA ManufacturerMotorshop OriginImported 2025 Catalog Pages508$54.91 -
Out of stock
V-Twin - 11-0527 - Rocker Arm Assembly Rear Intake Front Exhaust
Motorshop
$146.73V-Twin - 11-0527 - Rocker Arm Assembly Rear Intake Front ExhaustDescriptionReplica rocker arm assembly includes one front exhaust and one rear intake and are complete with shafts and blocks. Fits:FL 1948-1965Additional Information OEM No.17635-48 UOM1...$146.73 -
Out of stock
V-Twin - 11-0526 - Rocker Arm Assembly Rear Exhaust Front Intake
Motorshop
$146.73V-Twin - 11-0526 - Rocker Arm Assembly Rear Exhaust Front IntakeDescriptionReplica Rocker Arm Assembly are complete with shafts and blocks. Upper and lower block sets may have to be honed prior to final assembly. Fits:FL 1948-1965Additional Information ...$146.73 -
Out of stock
V-Twin - 11-0510 - Big Bore Gasket and Parts Kit
Motorshop
$100.93V-Twin - 11-0510 - Big Bore Gasket and Parts KitDescriptionMagnum cylinder small parts kit is for installing 3-5/8" barrels on Shovelhead cases. Kit includes 2 head gaskets, base gaskets, 8 cylinder base nuts and 10 head bolts with washers.*NOTE: The...$100.93 -
Out of stock
V-Twin - 11-0480 - Rocker Arm Kit
Motorshop
$644.62V-Twin - 11-0480 - Rocker Arm KitDescriptionPanhead rocker arm kit includes all pieces to completely assemble the rocker arms on both heads.Kit includes 4 rocker assemblies with matching fitted rocker arms, heat treated stud and lock nuts, intake oiler...$644.62 -
Out of stock
V-Twin - 11-0434 - K-Model Piston Kit .040 Oversize
Eastern Motorcycle Parts
MSRP: $239.97$228.06V-Twin - 11-0434 - K-Model Piston Kit .040 OversizeDescriptionPiston kit .040, Bore 2.745", includes rings. Fits:K 1952-1956Additional Information UOM1 - KIT ManufacturerEastern OriginImported 2025 Catalog Pages820 Replacement Items11-2533 - 45"...MSRP: $239.97$228.06 -
Out of stock
V-Twin - 11-0423 - 3-5/16 inch Piston Set .080 Oversize
Eastern Motorcycle Parts
MSRP: $237.41$228.06V-Twin - 11-0423 - 3-5/16 inch Piston Set .080 OversizeDescriptionPiston set 3-5/16" bore is .080 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engineMeasures 1-1/8" from the top...MSRP: $237.41$228.06 -
Out of stock
V-Twin - 11-0422 - 3-5/16 inch Piston Set .070 Oversize
Eastern Motorcycle Parts
MSRP: $237.41$228.06V-Twin - 11-0422 - 3-5/16 inch Piston Set .070 OversizeDescriptionPiston set 3-5/16" bore is .070 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...MSRP: $237.41$228.06 -
Out of stock
V-Twin - 11-0421 - 3-5/16 inch Piston Set .060 Oversize
Eastern Motorcycle Parts
MSRP: $237.41$228.06V-Twin - 11-0421 - 3-5/16 inch Piston Set .060 OversizeDescriptionPiston set 3-5/16" bore is .060 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...MSRP: $237.41$228.06 -
Out of stock
V-Twin - 11-0420 - 3-5/16 inch Piston Set .050 Oversize
Eastern Motorcycle Parts
MSRP: $237.41$228.06V-Twin - 11-0420 - 3-5/16 inch Piston Set .050 OversizeDescriptionPiston set 3-5/16" bore is .050 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...MSRP: $237.41$228.06 -
Out of stock
V-Twin - 11-0419 - 3-5/16 inch Piston Set .040 Oversize
Eastern Motorcycle Parts
MSRP: $237.41$228.06V-Twin - 11-0419 - 3-5/16 inch Piston Set .040 OversizeDescriptionPiston set 3-5/16" bore is .040 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 74" engine Fits:UL 1937-1948Additional...MSRP: $237.41$228.06 -
Out of stock
V-Twin - 11-0411 - 3-7/16 inch Piston Set .030 Oversize
Eastern Motorcycle Parts
MSRP: $255.63$244.26V-Twin - 11-0411 - 3-7/16 inch Piston Set .030 OversizeDescriptionPiston set 3-7/16" bore is .030 oversize. Set includes ring set, 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast. For 80" engine Fits:ULH 1937-1948Additional...MSRP: $255.63$244.26 -
Out of stock
V-Twin - 11-0406 - Piston Kit .060 Oversize
Eastern Motorcycle Parts
MSRP: $220.71$208.57V-Twin - 11-0406 - Piston Kit .060 OversizeDescription.060 piston kit comes with .060 rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Top ring measures 3/32" thick and the oil ring...MSRP: $220.71$208.57 -
Out of stock
V-Twin - 11-0405 - Piston Kit .050 Oversize
Motorshop
$156.33V-Twin - 11-0405 - Piston Kit .050 OversizeDescription.050 piston kit comes with .050 rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Top ring measures 3/32" thick and the oil ring...$156.33 -
Out of stock
V-Twin - 11-0403 - Piston Kit .030 Oversize
Eastern Motorcycle Parts
MSRP: $207.50$196.08V-Twin - 11-0403 - Piston Kit .030 OversizeDescription.030 piston kit comes with .030 thick piston rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Fits:G 1929-1949WL 1929-1952Additional...MSRP: $207.50$196.08 -
Out of stock
V-Twin - 11-0402 - Piston Kit .020 Oversize
Motorshop
$155.65V-Twin - 11-0402 - Piston Kit .020 OversizeDescription.020 piston kit comes with .020 rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Top ring measures 3/32" thick and the oil ring...$155.65 -
Out of stock
V-Twin - 11-0401 - 45 inch WL/G Piston Kit .010 inch Oversize
Motorshop
$202.37V-Twin - 11-0401 - 45 inch WL/G Piston Kit .010 inch OversizeDescription.010 piston kit comes with .010 rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. Top ring measures 3/32" thick and...$202.37 -
Out of stock
V-Twin - 11-0400 - 45 inch WL/G Piston Kit Standard
Motorshop
$144.99V-Twin - 11-0400 - 45 inch WL/G Piston Kit StandardDescriptionStandard piston kit with standard rings, 2 wrist pins and 4 circlips. For 45" models.Pistons have a steel expansion control strut cast as original. The piston measures 2.7455" with a .002...$144.99 -
Out of stock
V-Twin - 11-0386 - Replica 883cc Cylinder Black
Motorshop
$92.40V-Twin - 11-0386 - Replica 883cc Cylinder BlackDescriptionReplica Evolution 883cc black with silver finned cylinders are bored for standard pistons and require honing for final fitment. Fits:XL 1986-2003Additional Information UOM1 - EA ...$92.40 -
Out of stock
V-Twin - 11-0385 - 3-5/8 inch Cylinder Set
Motorshop
$697.21V-Twin - 11-0385 - 3-5/8 inch Cylinder SetDescriptionCylinders are .200 taller than stock height cylinders.For installation of 3-5/8" cylinders after spigot holes have been enlargedto 3.8750". (See diagram for photos.) Cylinders are honed to a finished...$697.21 -
Out of stock
V-Twin - 11-0384 - 45 inch WL/G Piston Kit .005 inch Oversize
Motorshop
$330.54V-Twin - 11-0384 - 45 inch WL/G Piston Kit .005 inch OversizeDescription.005 oversize piston kit with rings, 2 wrist pins and 4 circlips, for 45" models.Kit includes hasting ring set with 3/32" compression rings and 1/8" oil ring. *NOTE: Bore and hone to...$330.54 -
Out of stock
V-Twin - 11-0379 - 45 inch Piston Kit Standard
Motorshop
$124.64V-Twin - 11-0379 - 45 inch Piston Kit StandardDescription45" standard piston kit is the original Harley-Davidson army surplus and includes the ring set.Sold as a set of 2. Fits:G 1936-1973W 1936-1952Additional Information UOM1 - KIT ...$124.64 -
Out of stock
V-Twin - 11-0378 - Cylinder and Piston Conversion Kit
Motorshop
$671.78V-Twin - 11-0378 - Cylinder and Piston Conversion KitDescription883-1200cc conversion cylinder and piston kit features black cylinders with Sifton moly coated pistons.Kit is bolt on. Fits:XL 2004-UPAdditional Information UOM1 - KIT ...$671.78
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.