Engine
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Out of stock
V-Twin - Cylinder Head Set with Chrome Rocker Box fits '78-'84 FL/FX Models
V-Twin Manufacturing
$1,367.79V-Twin - Cylinder Head Set with Chrome Rocker Box fits '78-'84 FL/FX Models Set is assembled with cast iron guides, valve stem seals, chrome rocker box and nitrated valves. For use on 74" or 80" models with Shovelhead barrels Fitment: FL...$1,367.79 -
Out of stock
V-Twin - Cadmium Headbolt Washer fits '37-'47 UL, '29-'52 WL, '29-'73 G Models
V-Twin Manufacturing
$41.62V-Twin - Cadmium Headbolt Washer fits '37-'47 UL, '29-'52 WL, '29-'73 G Models Headbolt washer constructed of aluminum features a cadium plated finish. Fitment: UL 1937-1947 WL 1929-1952 G 1929-1973$41.62 -
Out of stock
V-Twin - Oil Filter Pump Cover Plate fits '73-'84 FX, '68-'84 FL Models
V-Twin Manufacturing
$27.16V-Twin - Oil Filter Pump Cover Plate fits '73-'84 FX, '68-'84 FL Models Shovelhead oil filter pump cover plate includes four 1/4" x 2-1/2"-20 screws and four 1/4" x 2-1/2"-24 allen screws. Machined screws are aluminum featuring a natural finish...$27.16 -
Out of stock
V-Twin - Oil Pump Pressure Valve Stainless Steel fits '82-'91 FXR, '86-'91 FLST, '84-'91 FXST Models
V-Twin Manufacturing
$83.23V-Twin - Oil Pump Pressure Valve Stainless Steel fits '82-'91 FXR, '86-'91 FLST, '84-'91 FXST Models Machined stainless steel oil pump pressure valve for Big Twins. Fits oil pressure relief valve port on oil pumps. Used as an oil pressure indicator...$83.23 -
Out of stock
V-Twin - Transmission Motor Support fits '82-'94 FXR Model
V-Twin Manufacturing
$214.20V-Twin - Transmission Motor Support fits '82-'94 FXR Model Zinc plated transmission motor support features laser cut 1/4" steel with all holes in place. Includes the tab for front exhaust mounts. Acts to absorb torque between the drive train...$214.20 -
Out of stock
Colony - Cylinder Base XLR Type Nut fits '57-'84 Sportster Models
Colony Machine
$35.95Colony - Cylinder Base XLR Type Nut fits '57-'84 Sportster Models Features: For use on specific applications Made in the U.S.A. Fitment 1983-1985 Harley-Davidson Sportster 1000 XLX - - 1983-1984 Harley-Davidson Sportster 1000...$35.95 -
Out of stock
Colony - Motor Case Stud Kit fits '79-'95 Big Twin Models - Cadmium
Colony Machine
$57.95Colony - Motor Case Kit fits '79-'95 Big Twin Models - Cadmium Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A. Fitment 1999 Harley-Davidson Softail Night Train...$57.95 -
Out of stock
Colony - Motor Case Stud Kit fits '70-'78 Shovelhead Model (OEM #24806-36, 24815-40) - Cadmium
Colony Machine
$57.95Colony - Motor Case Kit fits '70-'78 Shovelhead Model (OEM #24806-36, 24815-40) - Cadmium Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A. Replacement Part for...$57.95 -
Out of stock
Colony - Motor Case Stud Kit fits '65-'69 Shovelhead Model (OEM #24806-36, 24809-30)
Colony Machine
$57.95Colony - Motor Case Kit fits '65-'69 Shovelhead Model (OEM #24806-36, 24809-30) Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A. Replacement Part for...$57.95 -
Out of stock
Colony - Motor Case Stud Kit fits '48-'64 Panhead Model (OEM #24806-36, 24809-30)
Colony Machine
$57.95Colony - Motor Case Kit fits '48-'64 Panhead Model (OEM #24806-36, 24809-30) Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A. Replacement Part for...$57.95 -
Out of stock
Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A)
Colony Machine
$86.95Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A) Features: 12-point replacement headbolts Made in the U.S.A. Fitment 1992 Harley-Davidson Dyna Daytona FXDB - - 1991 Harley-Davidson Dyna Sturgis...$86.95 -
Out of stock
Colony - Head Bolt Kit fits '57-'72 Sportster Models (OEM #4714W)
Colony Machine
$69.95Colony - Head Bolt Kit fits '57-'72 Sportster Models (OEM #4714W) Features: Hardened to OEM specifications to prevent stretching Made in the U.S.A. Fitment 1972 Harley-Davidson Sportster 1000 XLH - - 1972 Harley-Davidson Sportster 1000 XLCH - - ...$69.95 -
Out of stockOn Sale
Burly Brand - Black Brawler Kit fits M8 Softail Models
Burly Brand
$206.96 - $287.96Burly Brand - Black Brawler Kit fits M8 Softail Models Features: Designed to grind down during impacts to prevent bike from catching and flipping Functions as a highway bar for a secure grip and comfortable footrest on long rides Durable materials...$206.96 - $287.96 -
Out of stock
Colony - Replacement Cylinder Stud Set fits '99-'17 Twin Cam Models (OEM #16834-99/A)
Colony Machine
$88.95Colony - Replacement Cylinder Stud Set fits '99-'17 Twin Cam Models (OEM #16834-99/A) Features: Heat-treated for strength and durability Equal or surpass original equipment Fitment 2016-2017 Harley-Davidson Softail Slim S...$88.95 -
Out of stock
Colony - Brass Intake Manifold Seal fits '40-'54 Big Twin Models (OEM #27059-40)
Colony Machine
$18.95Colony - Brass Intake Manifold Seal fits '40-'54 Big Twin Models (OEM #27059-40) Features: Precision machined duplicates of original intake manifold seals, nuts and nipples Made in the U.S.A. Fitment 1949-1954 Harley-Davidson Hydra...$18.95 -
Out of stock
Colony - Intake Manifold Nipple fits '40-'54 Big Twin Models (OEM #27039-48)
Colony Machine
$21.95Colony - Intake Manifold Nipple fits '40-'54 Big Twin Models (OEM #27039-48) Features: Precision machined duplicates of original intake manifold seals, nuts and nipples Made in the U.S.A. Fitment 1949-1951, 1953-1954 Harley-Davidson Hydra...$21.95 -
Out of stock
Colony - Rocker Arm Stud Kit fits '48-'65 Panhead Model (OEM #17647-48) - Parkerized
Colony Machine
$37.95Colony - Rocker Arm Stud Kit fits '48-'65 Panhead Model (OEM #17647-48) - Parkerized Features: High-quality studs and flexloc nuts Eight studs and nuts cover one cylinder head Fitment 1965 Harley-Davidson Electra Glide...$37.95 -
Out of stock
Colony - 8734-24 Chrome Valve Cover Screw Kit fits '48-'65 Panhead Model (OEM #3565W)
Colony Machine
$45.95Colony - 8734-24 Chrome Valve Cover Screw Kit fits '48-'65 Panhead Model (OEM #3565W) Features: Exact duplicate of original special screws used on Panhead valve covers Made in the U.S.A. Fitment 1965 Harley-Davidson Electra Glide...$45.95 -
Out of stock
Colony - 8165-19 Cadmium Motor Mount Bolt Kit fits '36-'69 Big Twin Models (OEM #24791-36, 24794-36)
Colony Machine
$64.95Colony - 8165-19 Cadmium Motor Mount Bolt Kit fits '36-'69 Big Twin Models (OEM #24791-36, 24794-36) Features: Kit Includes top motor mount bolt, two 3/8"-24 x 31/4" bolts, two front engine mounting bolts, three 3/8" x 7/64" washers, three castle...$64.95 -
Out of stock
Colony - 2595-13 Cadmium Upper Motor Mount Bolt Kit fits '36-'69 Big Twin Models (OEM #16865-52, 7867)
Colony Machine
$24.95Colony - 2595-13 Cadmium Upper Motor Mount Bolt Kit fits '36-'69 Big Twin Models (OEM #16865-52, 7867) Features: Kits includes top motor mount bolt, locknut, three flat washers, two castle nuts, cotter key, one 29/64" washer, one 7/16" washer and one...$24.95 -
Out of stock
Colony - Motor Case Stud Kit fits '40-'47 Knucklehead Model (OEM #24806-36, 24809-30)
Colony Machine
$57.95Colony - Motor Case Kit fits '40-'47 Knucklehead Model (OEM #24806-36, 24809-30) Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A. Replacement Part for OEM: 2480636 2480930 2481540 4432 Fitment: ...$57.95 -
Out of stock
Colony - Oil Tappet Screen and O-Ring fits '00-'17 Softail Models (OEM #11301, 24983-00)
Colony Machine
$5.95Colony - Oil Tappet Screen and O-Ring fits '00-'17 Softail Models (OEM #11301, 24983-00) Features: High-quality replacement Made in the USA Fitment 2020 Harley-Davidson Softail Low Rider S...$5.95 -
Out of stock
Colony - Tappet Oil Screen Plug Kit fits '70-'80 Big Twin Models (OEM #657)
Colony Machine
$11.95Colony - Tappet Oil Screen Plug Kit fits '70-'80 Big Twin Models (OEM #657) Features: Plug and plug kits designed for a variety of Harley-Davidson® oil systems Complete with washers (or O-rings if required) Made in the U.S.A...$11.95 -
Out of stock
Colony - Replacement Cylinder Stud Set fits '85-'99 Evolution Big Twin Models (OEM #16837-85B)
Colony Machine
$101.95Colony - Replacement Cylinder Stud Set fits '85-'99 Evolution Big Twin Models (OEM #16837-85B) Features: Heat-treated for strength and durability Equal or surpass original equipment Fitment 2000 Harley-Davidson FXR...$101.95 -
Out of stock
Colony - Cylinder Base Nut Kit fits '57-'85 Sportster Models (OEM #0123, 7804)
Colony Machine
$19.95Colony - Cylinder Base Nut Kit fits '57-'85 Sportster Models (OEM #0123, 7804) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Fitment 1983-1985 Harley-Davidson Sportster 1000...$19.95 -
Out of stock
Colony - Cylinder Base Nut Kit fits '48-'84 Big Twin Models
Colony Machine
$35.95Colony - Cylinder Base Nut Kit fits '48-'84 Big Twin Models Features: For use on specific applications Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special FLHX - - 1983-1984 Harley-Davidson Low Rider...$35.95 -
Out of stock
Colony - Cylinder Base Acorn Hardware Kit fits '78-'84 Big Twin Models
Colony Machine
$28.95Colony - Cylinder Base Acorn Hardware Kit fits '78-'84 Big Twin Models Features: Individual acorn bolt and nut sets for specific applications Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special...$28.95 -
Out of stock
Colony - 8707-6 Oil Pump Plug Kit fits '81-'84 Big Twin Models
Colony Machine
$25.95Colony - 8707-6 Oil Pump Plug Kit fits '81-'84 Big Twin Models Features: Plug and plug kits designed for a variety of Harley-Davidson® oil systems Complete with washers (or O-rings if required) Made in the U.S.A...$25.95 -
Out of stock
Colony - 8224-8 Rocker Shaft End Plug fits '71-'84 Shovelhead & '71-'85 Sportster Models (OEM #17448-71A, 7875)
Colony Machine
$47.95Colony - 8224-8 Rocker Shaft End Plug fits '71-'84 Shovelhead & '71-'85 Sportster Models (OEM #17448-71A, 7875) Features: Complete sets stock-style replacement rocker shaft end plugs, nuts, and washers Made in the U.S.A...$47.95 -
Out of stock
Colony - 1/2"-13 Standard Drain Plug Transmission/Motor Case/Oil Tank w/ Brass Gasket (OEM #62702-52, 707) - Chrome
Colony Machine
$9.95Colony - 1/2"-13 Standard Drain Plug Transmission/Motor Case/Oil Tank w/ Brass Gasket (OEM #62702-52, 707) - Chrome Features: Made in the USA$9.95 -
Out of stock
Feuling - Fast Install Push Rods fits '99-'17 Twin Cam Models
Feuling
$219.95Feuling - Fast Install Push Rods fits '99-'17 Twin Cam Models FEULING® FAST Install adjustable pushrods are made from the same great design as the regular install FEULING® adjustable pushrods but feature a slightly shorter tapered tube and come...$219.95 -
Out of stock
Drag Specialties - Oil Pump Assembly fits '73-'91 Big Twin Models
Drag Specialties
$270.25Drag Specialties - Oil Pump Assembly fits '73-'91 Big Twin Models This is a high-quality replacement cast aluminum pump body with steel gears and a shaft. Features Raw cast aluminum finish Gaskets and seals included; mounting hardware sold...$270.25 -
Out of stock
Drag Specialties - Oil Pump Assembly Fits '92-'00 Big Twin Models
Drag Specialties
$270.25Drag Specialties - Oil Pump Assembly Fits '92-'00 Big Twin Models This is a high-quality replacement cast aluminum pump body with steel gears and a shaft. Features Raw cast aluminum finish Gaskets and seals included; mounting hardware sold...$270.25 -
Out of stock
Custom Cycle Engineering - Top Stabilizer Link - fits '99-'03 Harley Dyna
Custom Cycle Engineering
$311.58Custom Cycle Engineering - Top Stabilizer Link - fits '99-'03 Harley Dyna Does your Dyna vibrate on the highway? The Custom Cycles Top Stabilizer is just what you need. This reduces engine vibration and aligns the power train. This top stabilizer uses...$311.58 -
Out of stockOn Sale
S&S Cycle - 3.625" Bore Shovelhead Cylinder Kit fits '66-'84 Shovelhead Engines
S&S Cycle
MSRP: $1,249.95Now: $1,159.16Was: $1,287.95S&S Cycle - 3.625" Bore Shovelhead Cylinder Kit fits '66-'84 Shovelhead Engines This Bore Shovelhead Cylinder Kit comes complete with front and rear cylinders, base nuts, headbolts, base gaskets and head gaskets. NOTE: 3.625" bore cylinders require...MSRP: $1,249.95Now: $1,159.16Was: $1,287.95Qty in Cart: 0Quantity:Price:MSRP: $1,249.95Now: $1,159.16Was: $1,287.95Subtotal: -
Out of stock
Old-STF Cycle - Stainless/Black Rocker Box Split Oil Line fits '66-'84 Shovelhead
Old-STF Cycle
$99.95Old-STF Cycle - Stainless/Black Rocker Box Split Oil Line fits '66-'84 Shovelhead The Old-STF Cycle Stainless/Black Rocker Box Split Oil Line is a high-quality kit that is designed to fit Shovelhead motorcycles from 1966 to 1984. This kit features...$99.95 -
Out of stock
Sawicki - Black Heat Shield Kit for Softail Models
Sawicki Exhaust
$150.00Sawicki - Black Heat Shield Kit for Softail Models Features Optional heat shields are sold each$150.00 -
Out of stock
Jagg - Deluxe Diamond Cut Oil Cooler System
Jagg Oil Coolers
$550.99Jagg - Deluxe Diamond Cut Oil Cooler System This special edition oil cooler kit is as spectacular and durable as the gem it is named after. It is the perfect solution for Harleys with perimeter, vertical frame tubes. This cooler mounts to the left frame...$550.99 -
Out of stock
Jagg - Low Mount 10-Row Horizontal Oil Cooler fits '84-'08 Touring Models
Jagg Oil Coolers
$449.95 - $574.95Jagg - Low Mount 10-Row Horizontal Oil Cooler fits '84-'08 Touring Models Jagg's 10-Row Low Mount Oil Cooler System was designed to help Twin Cam engines deliver optimum heat exchange and flow characteristics through the use of HyperFlow Technology...$449.95 - $574.95 -
Out of stock
Jagg - Black Low Mount 6-Row Horizontal Oil Cooler fits '00-'17 Softail Models (Exc. ABS Models)
Jagg Oil Coolers
$399.95Jagg - Black Low Mount 6-Row Horizontal Oil Cooler fits '00-'17 Softail Models (Exc. ABS Models) Jagg's 6-Row Low Mount Oil Cooler Kit was designed exclusively for Twin Cam Harley-Davidson Softail Motorcycles. Its two-pass design provides greater cooling...$399.95
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.