Engine
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Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Models
Colony Machine
MSRP: $7.86$7.07Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Models Allen type oil filter adapter screw kit Fitment: XL 1986-UPMSRP: $7.86$7.07 -
Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Models
Colony Machine
MSRP: $15.86$14.27Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Models Tappet block allen type screw kit. Fitment: XL 1995-2003MSRP: $15.86$14.27 -
Colony - 9799-20 Front Motor Mount Kit Hex Type fits '57-'84 Sportster Models
Colony Machine
MSRP: $48.15$46.80Colony - 9799-20 Front Motor Mount Kit Hex Type fits '57-'84 Sportster Models Hex type front motor mount kit with a cadmium finish. Fitment: XL 1957-1984MSRP: $48.15$46.80 -
V-Twin - Chrome Rocker Box Screw Kit fits '77-'85 Sportster Model
V-Twin Mfg
$15.70V-Twin - Chrome Rocker Box Screw Kit fits '77-'85 Sportster Model Chrome rocker box screw kit without studChrome rocker box screw kit without stud Fitment: XL 1977-1985$15.70 -
Colony - 9859-20 Lower Engine Mount Kit fits '89-'99 FLT, '89-'94 FXR Models
Colony Machine
$35.52Colony - 9859-20 Lower Engine Mount Kit fits '89-'99 FLT, '89-'94 FXR Models Chrome lower engine mount bolt kit. Fitment: FLT 1989-1999 FXR 1989-1994$35.52 -
V-Twin - Front Engine Mount Frame Brace fits '48-'84 FL Model
V-Twin Mfg
$288.24V-Twin - Front Engine Mount Frame Brace fits '48-'84 FL Model Front engine mount weld on frame brace fits rigid frames for replacement and repair. Features a raw steel finish. This is an update design, heavier than OEM# 47664-48 #9. For 1948-1957...$288.24 -
Colony - 7612-3 Cadmium Oil Line Fitting fits '36-'40 EL, '41-'64 FL, '38-'48 UL Models (OEM #63533-15)
Colony Machine
MSRP: $25.75$24.07Colony - 7612-3 Cadmium Oil Line Fitting fits '36-'40 EL, '41-'64 FL, '38-'48 UL Models (OEM #63533-15) Cadmium Oil Line Fitting Fitment: EL 1936-1940 FL 1941-1964 UL 1938-1948MSRP: $25.75$24.07 -
V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models
V-Twin Mfg
$27.12V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models Manifold seal kit is to reseal late model manifolds with CV carburetor Fitment: FLST 1990-2017 FXD 1991-2017 FXST 1990-2017 XL 1988-2006 FLT 1990-UP$27.12 -
V-Twin - Ironhead Hardware Kit fits '57-'03 Sportster Model
V-Twin Mfg
$49.90V-Twin - Ironhead Hardware Kit fits '57-'03 Sportster Model Sportster hardware kit includes zinc plated hex bolts and nyloc nuts with a cadium hex type front motor mount kit. For installing 1957-1985 Ironhead engines on 1986-2003 XL rigid frame...$49.90 -
Colony - Cylinder Base Nut Kit fits '36-'77 Big Twin Models (OEM #0265, 7839)
Colony Machine
$22.95Colony - Cylinder Base Nut Kit fits '36-'77 Big Twin Models (OEM #0265, 7839) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Fitment 2003-2006 Kawasaki KDX 50 - - 1978-2006 Suzuki JR...$22.95 -
Drag Specialties - Oil Pressure Switch fits '84-'99 Evolution Big Twin Models (Except '87-'98 FLHT/FLTR (OEM #26561-84))
Drag Specialties
$14.51Drag 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...$14.51 -
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 - 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 - Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80)
Colony Machine
$28.95Colony - 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...$28.95 -
Colony - Replacement Cylinder Stud Set fits '86-'22 Sportster Models (Except RH Sportster (OEM #16832-86A))
Colony Machine
$88.95Colony - Replacement Cylinder Stud Set fits '86-'22 Sportster Models (Except RH Sportster (OEM #16832-86A)) Features: Heat-treated for strength and durability Equal or surpass original equipment Fitment 2016-2019 Harley-Davidson 1200...$88.95 -
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 - 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 -
V-Twin - Chrome Top Engine Mount Stabilizer fits '05-'17 Dyna Models
V-Twin Mfg
$174.58V-Twin - Chrome Top Engine Mount Stabilizer fits '05-'17 Dyna Models V-Twin's Chrome Finish Top Motor Mount Stabilizer Kit comes with adjustable stabilizer links and all necessary hardware to ensure a hassle-free installation. The rubber isolated links...$174.58 -
S&S Cycle - Oil Change Kit W/ Oil Filter fits Harley M8 Models
S&S Cycle
$119.06 - $123.14S&S Cycle - Oil Change Kit W/ Oil Filter fits Harley M8 Models S&S Cycle's Oil Change Kit delivers regular viscosity and resists thermal breakdown and oxidation at elevated temperatures. It provides superior lubrication for decreased engine wear...$119.06 - $123.14 -
On Sale
Arlen Ness - 10-Gauge Cam Cover fits '17-'22 M8 Models
Arlen Ness
MSRP: $329.95Now: $296.96Was: $329.95Arlen Ness - 10-Gauge Cam Cover fits '17-'22 M8 Models This gauge cover is available in your choice of a chrome, black anodized w/ machined accents, titanium anodized or black anodized finish. Features Machined from 6061 T-6 forged aluminum Replaces OEM...MSRP: $329.95Now: $296.96Was: $329.95 -
Joker Machine - Points Cover fits '70-'99 Big Twin (Exc. Twin Cam Models) & '04-'22 Sportster Models (Exc. '21-'22 Sportster S/RH 1250S Models) - Chrome
Joker Machine
$71.95Joker Machine - Points Cover fits '70-'99 Big Twin (Exc. Twin Cam Models) & '04-'22 Sportster Models (Exc. '21-'22 Sportster S/RH 1250S Models) - Chrome This point cover comes in a chrome-plated finish and is available in your choice of a finned or...$71.95 -
On Sale
Arlen Ness - 10-Gauge Points Cover fits '99-'17 Twin Cam Models (Choose Color)
Arlen Ness
MSRP: $59.95 - $69.95$53.96 - $62.96Arlen Ness - 10-Gauge Points Cover fits '99-'17 Twin Cam Models These covers are machined from 6061-T6 billet aluminum and are available in seven different colors: Chrome, Black Anodized, Blue Anodized, Gold Anodized, Orange Anodized, Red Anodized and...MSRP: $59.95 - $69.95$53.96 - $62.96 -
Custom Cycle Engineering - Front Motor Mount fits '06-'17 Dyna Models
Custom Cycle Engineering
$543.95Custom Cycle Engineering - Front Motor Mount fits '06-'17 Dyna Models This mount uses an adjustable stabilizing link, which attaches to the frame. Features Motor mount system replaces the inadequate stock mounts Made in the U.S.A...$543.95 -
Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors
Feuling
$99.95Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors This kit features precision-rolled threads for the utmost engagement in order to stop galling and deliver better regular torque loading. The wide underhead flange design...$99.95 -
Cometic - Primary Gasket Kit fits '07-'22 Sportster Models (Exc. '21-'22 Sportster S/RH, '22 Nightster/RH975)
Cometic
$43.00Cometic - Primary Gasket Kit fits '07-'22 Sportster Models (Exc. '21-'22 Sportster S/RH, '22 Nightster/RH975) This kit features Cometic's proprietary AFM (Aluminum Foamette Material) gaskets. These gaskets have an aluminum core with a chemically blown,...$43.00 -
Cometic - Primary Gasket Kit fits '94-'06 Touring Models
Cometic
$130.15Cometic - Primary Gasket Kit fits '94-'06 Touring Models This kit features Cometic's proprietary AFM (Aluminum Foamette Material) gaskets. These gaskets have an aluminum core with a chemically blown, compounded nitrile synthetic rubber which is bonded...$130.15 -
James Gaskets - James Rubber Rocker Box Gasket Kit W/ RCM Base Gaskets fits '86-'90 Sportster Models
James Gaskets
$91.95James Gaskets - James Rubber Rocker Box Gasket Kit W/ RCM Base Gaskets fits '86-'90 Sportster Models This kit comes complete with all of the necessary inner, upper and lower rocker box gaskets and bolt washers. Made in the U.S.A...$91.95 -
James Gaskets - James Rubber Rocker Box Gasket Kit W/ RCM Base Gaskets fits '07-'21 Sportster Models (Exc. '21 Sportster S/RH1250S)
James Gaskets
$91.95James Gaskets - James Rubber Rocker Box Gasket Kit W/ RCM Base Gaskets fits '07-'21 Sportster Models (Exc. '21 Sportster S/RH1250S) This kit comes complete with all of the necessary inner, upper and lower rocker box gaskets and bolt washers. Made in the...$91.95 -
S&S Cycle - Stock Bore 80" Cylinder and Standard Compression Piston Kit fits '78-'84 Shovelhead Engines
S&S Cycle
MSRP: $1,999.95$1,995.95S&S Cycle - Stock Bore 80" Cylinder and Standard Compression Piston Kit fits '78-'84 Shovelhead Engines This Kit is built to replace the cylinders and pistons of an 80" Shovelhead engine whilst maintaining the stock compression ratio of 8:1. It...MSRP: $1,999.95$1,995.95 -
S&S Cycle - Wrinkle Black 131" Stroker Cylinder & Piston Kit W/ Non-Highlighted Cylinder Fins fits '17-'21 M8 Engines
S&S Cycle
$1,559.95S&S Cycle - Wrinkle Black 131" Stroker Cylinder & Piston Kit W/ Non-Highlighted Cylinder Fins fits '17-'21 M8 Engines S&S Cycle's Stroker Cylinder & Piston Kit is a bolt-on kit that is compatible with the stock crankcases and features...$1,559.95 -
S&S Cycle - TC3 Oil Pump & Cam Support Plate Kit - fits '99-'06 Twin Cam (Exc. '06 Dyna)
S&S Cycle
$836.95S&S Cycle - TC3 Oil Pump & Cam Support Plate Kit - fits '99-'06 Twin Cam (Exc. '06 Dyna) Features: Precision CNC machined forged aluminum Increased structural strength Dimensional stability Freedom for internal porosity Separate scavenge...$836.95 -
S&S Cycle - Oil Pump fits '17-'23 M8 Water-Cooled Touring Models
S&S Cycle
MSRP: $587.95$495.95S&S Cycle - Oil Pump fits '17-'23 M8 Water-Cooled Touring Models S&S Cycle's Oil Pump for '17-'23 M8 Water-Cooled Touring Models delivers a 44% flow increase on the supply side and a 58% flow increase on scavenge. There are independent scavenge...MSRP: $587.95$495.95 -
S&S Cycle - Aluminum Hydraulic Cam Chain Tensioners Kit - fits '07-'17 Twin Cam, '06 Dyna
S&S Cycle
$175.95S&S Cycle - Aluminum Hydraulic Cam Chain Tensioners Kit - fits '07-'17 Twin Cam, '06 Dyna Features: For use in stock 07-17 Twin Cam engines or 99-06 Twin Cam engines with a hydraulic upgrade cam plate like the S&S TC3bodies machined from 6061...$175.95 -
S&S Cycle - Headbolt Kit fits '84-'17 Big Twin & '86-'03 XL Models W/ S&S Heads
S&S Cycle
$149.95S&S Cycle - Headbolt Kit fits '84-'17 Big Twin & '86-'03 XL Models W/ S&S Heads Features Set of 8 Head Bolts & Washers 4 Head Bolts: 12 pt, 3/8-16 x 3.384" x .950" TD$149.95 -
Old-STF Cycle - Brass Rocker Box Split Oil Line fits '66-'84 Shovelheads
Old-STF Cycle
$103.95Old-STF Cycle - Brass Rocker Box Split Oil Line Features: No hassle kit for Shovelheads 1966-84. Heavy 1/4" Brass oil lines are pre bent with all necessary fittings. These lines will eliminate the problem of the "starving front head" All compression...$103.95 -
Old-STF Cycle - Brass Rocker Box Oil Line fits '57-'85 Ironhead
Old-STF Cycle
$72.95Old-STF Cycle - Brass Rocker Box Oil Line fits Ironhead Sportster Features: Old-Stf Ironhead Sportster loop rocker box lines. 1/4" Brass oil lines pre- bent with all necessary fittings. Easy install, all lines and fittings are polished. Install loop...$72.95 -
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 -
Drag Specialties - Cam Cover fits M8 Softail Models
Drag Specialties
$149.30Drag Specialties - Cam Cover fits M8 Softail Models The Drag Specialties Cam Cover for M8 Softail models accept OEM gasket and mounting hardware. Available in Black or Chrome Fitment 2021 Harley-Davidson Softail Standard...$149.30 -
Performance Machine - Vision Cam Covers - fits '17-Up M8 Models
Performance Machine
$519.95 - $571.95Performance Machine - Vision Cam Covers - fits '17-Up M8 Softail Models The Vision Cam Covers from Performance Machine feature a special polycarbonate lens for a glimpse inside the machine! Available in Chrome, Contrast Cut, and Black Ops...$519.95 - $571.95 -
S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines
S&S Cycle
$3,396.95S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines S&S Cycle has created the largest big-bore kits available today, without doing crankcase mods! This kit increases displacement to 110" ('07-'17) and the cylinders fit to the pistons...$3,396.95
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.