Engine
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Thrashin Supply Co. - Gen 2 Smooth M8 Cam Cover fits '24+ Touring Model
$109.95 - $119.95Thrashin Supply Co. - Gen 2 Smooth M8 Cam Cover fits '24+ Touring Model Features: Slim design and cut away corner for improved floorboard clearance Hardware included Aircraft Grade 6061 Aluminum Made in the USA Fitment: Fits 2024+ Touring...$109.95 - $119.95 -
Thrashin Supply Co. - Gen 2 Finned M8 Cam Cover fits '24+ Touring Model
$119.95 - $129.95Thrashin Supply Co. - Gen 2 Finned M8 Cam Cover fits '24+ Touring Model Features: Slim design and cut away corner for improved floorboard clearance Hardware included Aircraft Grade 6061 Aluminum Made in the USA Fitment: Fits 2024+ Touring...$119.95 - $129.95 -
Drag Specialties - Oil Pressure Switch fits '84-'99 Evolution Big Twin Models (Except '87-'98 FLHT/FLTR (OEM #26561-84))
Drag Specialties
$14.23Drag Specialties - Oil Pressure Switch fits '84-'99 Evolution Big Twin Models (Except '87-'98 FLHT/FLTR (OEM #26561-84)) Features: Precision-calibrated replacement oil pressure switches feature heavy contacts, brass pressure ferrules, thermo-plastic...$14.23 -
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 -
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 -
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 -
Drag Specialties - Replacement Oil Filler Plug
Drag Specialties
$13.21Drag Specialties - Replacement Oil Filler Plug Features: Replacement oil filler plug for oil tanks$13.21 -
Burly Brand - Black Brawler Kit fits M8 Softail Models
Burly Brand
$227.66 - $316.76Burly 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...$227.66 - $316.76 -
Colony - Cylinder Base Stud Set fits '30-'77 Big Twin Models (OEM #16831-30)
Colony Machine
$39.95Colony - Cylinder Base Stud Set fits '30-'77 Big Twin Models (OEM #16831-30) Features: Heat-treated for strength and durability Equal or surpass original equipment Made in the U.S.A. Fitment 1977 Harley-Davidson 1200 Low Rider...$39.95 -
Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80) 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...$10.95 -
Colony - Motor Mount Hardware Kit for '84-'99 FXST/FLST
Colony Machine
$51.95Colony - Motor Mount Hardware Kit for '84-'99 FXST/FLST Features: Made in the U.S.A. Replacement Part for OEM: 3512 4416 4716W 4726 6019 Fitment 1999 Harley-Davidson Softail Night Train FXSTB - - 1997-1999 Harley-Davidson Softail Heritage...$51.95 -
Colony - Intake Manifold Nut fits '40-'54 Big Twin Models (OEM #27052-40) - Cadmium
Colony Machine
$52.95Colony - Intake Manifold Nut fits '40-'54 Big Twin Models (OEM #27052-40) - Cadmium Features: Precision machined duplicates of original intake manifold seals, nuts and nipples Made in the U.S.A. Fitment 1949-1954 Harley-Davidson Hydra...$52.95 -
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 -
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 -
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 -
Colony - Rocker Arm Nut Kit fits '48-'65 Panhead Model (OEM #7727) - Cadmium Plated
Colony Machine
$18.95Colony - Rocker Arm Nut Kit fits '48-'65 Panhead Model (OEM #7727) - Cadmium Plated Features: High-quality studs and flexloc nuts Eight studs and nuts cover one cylinder head Fitment 1965 Harley-Davidson 1200 Electra Glide...$18.95 -
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 -
Colony - Rocker Cover Nut Strip Kit fits '36-'47 Big Twin Models (OEM #17535-38, 17537-38)
Colony Machine
$67.95Colony - Rocker Cover Nut Strip Kit fits '36-'47 Big Twin Models (OEM #17535-38, 17537-38) Features: Eight strips, four gaskets and 34 screws are included in the kit All holes are tapped for easy installation Made in the U.S.A. Replacement Part...$67.95 -
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 -
Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A)
Colony Machine
$48.95Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A) Features: Includes all necessary hardware for bolting together the motor case Made in the U.S.A. Replacement Part for...$48.95 -
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 -
Colony - Rocker End Cap fits '71-'85 Sportster Models
Colony Machine
$36.95Colony - Rocker End Cap fits '71-'85 Sportster Models Features: Individual chrome cap nut and bolt sets for specific applications Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special...$36.95 -
Colony - Hydraulic Pushrods fits '53-'65 Panhead w/ Hydraulic Lifters (OEM #17905-35B)
Colony Machine
$74.95Colony - Hydraulic Pushrods fits '53-'65 Panhead w/ Hydraulic Lifters (OEM #17905-35B) Features: Aircraft-grade aluminum tubing Heat-treated steel tips Fits stock stroke lengths Made in the U.S.A. Fitment 1965 Harley-Davidson Electra Glide FL - - ...$74.95 -
Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38)
Colony Machine
$8.95Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38) Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug holes Fitment 2000 Harley-Davidson FXR...$8.95 -
Colony - 8140-34 Motor Case Studs fits '70-'78 Big Twin Models (OEM #24806-36, 24815-40, 4432)
Colony Machine
$64.95Colony - 8140-34 Motor Case Studs fits '70-'78 Big Twin Models (OEM #24806-36, 24815-40, 4432) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Fitment 1978 Harley-Davidson Electra Glide...$64.95 -
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 -
Colony - Motor Mount Kit fits '70-'84 Big Twin Models (OEM #4401W, 4435W)
Colony Machine
$38.95Colony - Motor Mount Kit fits '70-'84 Big Twin Models (OEM #4401W, 4435W) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Replacement Part for...$38.95 -
Colony - 8139-34 Motor Case Acorn Hardware Kit fits '70-'78 Big Twin Models
Colony Machine
$70.95Colony - 8139-34 Motor Case Acorn Hardware Kit fits '70-'78 Big Twin Models Features: Individual acorn bolt and nut sets for specific applications Includes washers Made in the USA Fitment 1978 Harley-Davidson Electra Glide...$70.95 -
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 -
Colony - Cylinder Base Stud Set fits '78-'84 Big Twin Models (OEM #16837-78)
Colony Machine
$39.95Colony - Cylinder Base Stud Set fits '78-'84 Big Twin Models (OEM #16837-78) Features: Heat-treated for strength and durability Equal or surpass original equipment Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special...$39.95 -
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 -
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 -
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 -
Colony - Head Bolt Kit fits '48-'84 Big Twin Models (OEM #16814-40, 6469)
Colony Machine
$85.95Colony - Head Bolt Kit fits '48-'84 Big Twin Models (OEM #16814-40, 6469) Features: Hardened to OEM specifications to prevent stretching Made in the U.S.A. Fitment 1977 Harley-Davidson 1200 Low Rider...$85.95 -
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 -
Colony - 8441-1 5/8"-18 Crankcase/Oil Tank Cap Timing Plug fits '86-'95 Sportster Models
Colony Machine
$7.95Colony - 8441-1 5/8"-18 Crankcase/Oil Tank Cap Timing Plug fits '86-'95 Sportster Models Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug holes Fitment 2000 Harley-Davidson FXR...$7.95 -
Colony - 11/16"-16 Acorn/Oversized Timing Plug Crankcase/Oil Tank with Special Tap fits '86-'95 Sportster Models
Colony Machine
$51.95Colony - 11/16"-16 Acorn/Oversized Timing Plug Crankcase/Oil Tank with Special Tap fits '86-'95 Sportster Models Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug...$51.95 -
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 -
Colony - Oil Vent Fitting fits '36-'64 Big Twin Models (OEM #63533-15) - Chrome
Colony Machine
$17.95Colony - Oil Vent Fitting fits '36-'64 Big Twin Models (OEM #63533-15) - Chrome Features: Chrome-plated oil line fittings are exact duplicates of original types Can be used with braided stainless steel or stock rigid steel lines Made in the U.S.A...$17.95 -
Colony - Pushrod Tube Cover Conversion Kit fits '91-'03 Sportster Models
Colony Machine
$155.95Colony - Pushrod Tube Cover Conversion Kit fits '91-'03 Sportster Models Features: Complete kit includes four adapter rings, four inner tubes, four bottom tubes, four clips, four spring covers, four springs, four spring washers and all seals For use...$155.95
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.