Engine
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- Quantity
- Price
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Cometic - Primary Gasket Kit fits '91-'03 Sportster Models
Cometic
$56.65Cometic - Primary Gasket Kit fits '91-'03 Sportster 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...$56.65 -
James Gaskets - James Rubber Rocker Box Gasket Kit fits '91-'03 Sportster Models
James Gaskets
$68.95James Gaskets - James Rubber Rocker Box Gasket Kit fits '91-'03 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...$68.95 -
S&S Cycle - Natural 80" Bore Cylinder & Piston Kit fits '84-'00 Evolution Big Twin Models W/ Stock or S&S Heads
S&S Cycle
$1,155.95S&S Cycle - Natural 80" Bore Cylinder & Piston Kit fits '84-'00 Evolution Big Twin Models W/ Stock or S&S Heads S&S Cycle's 80" Bore Cylinder & Piston Kits feature S&S 3½" bore cylinders and forged pistons, rings, wrist...$1,155.95 -
S&S Cycle - Tappet Cuffs fits '06-'21 XL Models (Exc. '21 Sportster S/RH1250S) Repl. OEM #18505-06
S&S Cycle
$81.95S&S Cycle - Tappet Cuffs fits '06-'21 XL Models (Exc. '21 Sportster S/RH1250S) Repl. OEM #18505-06 With these cuffs, you can capture the tappets and not worry about affecting vertical motion to keep them perfectly aligned, even in high-stress, high...$81.95 -
James Gaskets - Complete Gasket Set fits '66-'84 Shovelhead 4-Speed; Repl. OEM #17029-70/17029-66
James Gaskets
$128.95James Gaskets - Complete Gasket Set fits '66-'84 Shovelhead 4-Speed; Repl. OEM #17029-70/17029-66 This top-quality complete gasket set comes with the gaskets, oil seals and O-rings required to completely rebuild '66-'84 Shovelhead 4-Speed . Made in...$128.95 -
S&S Cycle - Cam Chain Tensioner fits '17 & Up M8 Models
S&S Cycle
$109.95S&S Cycle - Cam Chain Tensioner fits '17 & Up M8 Models Features Precision Machined from Billet Aluminum Thicker shoe for longer wear Direct chain oiling Larger piston for more consistent pressure Tighter tolerances improves...$109.95 -
Colony Machine - Lower Rocker Box Mounting Kit fits '86-'20 XL Models
Colony Machine
$43.95Colony Machine - Lower Rocker Box Mounting Kit fits '86-'20 XL Models The Colony Machine Lower Rocker Box Mounting Kit is 100% U.S.A manufactured of the highest quality materials. Colony is among the most popular brands for the do-it-yourself biker,...$43.95 -
Trask Assault Series Cam Covers - fits '01-'17 Twin Cam w/o Cam Position Sensor
Trask Performance
$429.95Trask Assault Series Cam Covers - fits '01-'17 Twin Cam w/o Cam Position Sensor Available in Chrome, Gloss Black, and Raw Machined. Features: Transparent for viewing internal engine components Matches Assault series air cleaners Made in the U.S.A...$429.95 -
Custom Cycle Engineering - Finned Rocker Covers for Panhead 1948-1965
Custom Cycle Engineering
$457.95 - $584.95Custom Cycle Engineering - Finned Rocker Covers for Panhead 1948-1965 Part of the Randy Smith collection by Custom Cycles Engineering, these finned covers are for Harley Panhead engines 1948-1965. Details: Original Randy Smith design Made from 356...$457.95 - $584.95 -
S&S Chrome Rocker Box for Harley Evo Big Twin 1984-1999
S&S Cycle
$1,279.95 - $1,659.95S&S Chrome Rocker Box for Harley Evo Big Twin 1984-1999 Chrome rocker box available in billet or die-cast construction. Please be sure to check the fitment table below to ensure it will fit your bike! Details: Positive O-ring seal ensures...$1,279.95 - $1,659.95 -
Drag Specialties - Front Motor Mount Plate - Harley Touring Models
Drag Specialties
$47.33Drag Specialties Front Motor Mount Plate This motor mount by Drag Specialties is for 1999-2006 FLT 5-speed models, and is made to replace OEM part number 47159-79T. Features: Made of heavy-duty chromed steel to OEM...$47.33 -
Custom Cycle Engineering - Rear Motor Mount - fits Dyna Models
Custom Cycle Engineering
$646.95Custom Cycle Engineering Rear Motor Mount fits Dyna Models Custom Cycle Engineering is just what you need for your Harley. This product promotes safety with two separate aligned damper bushings that increase control of the swing arm. Made from tough...$646.95 -
Joker Machine - Black Points Cover - fits '70-'99 Big Twin - Finned
Joker Machine
$65.95Joker Machine Points Cover fits '70-'99 Big Twin Finned, Black This Joker Machine finned points cover is made from durable aluminum. It includes all necessary hardware making the mounting process super easy. Add a subtle custom look to your Harley...$65.95 -
Colony - Cylinder Base Acorn Nut and Washer Set - Chrome fits '57-'84 XL
Colony Machine
$25.99Cylinder Base Chrome Acorn Nut and Washer Set Fits: XL 1957-1984$25.99 -
Colony - Rocker Shaft End Plugs - fits Harley FL, FX, XL (see desc.)
Colony Machine
$39.99The chrome rocker arm shaft end plug makes installation and removal a much easier job than with the original slotted part. Includes 4 plugs per set. Fits: FL 1971-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1971-1984$39.99 -
V-Twin - 12-0949 - Piston Wrist Pin Lock
Eastern
MSRP: $16.42$14.77V-Twin - 12-0949 - Piston Wrist Pin LockDescriptionWrist pin lock, 10 pack. Fits:FXST 1984-1998FLT 1984-1998XL 1986-UPFXD 1991-1998FXR 1984-1994FLST 1986-1998Additional Information OEM No.22589-83 UOM10 - PK ManufacturerEastern OriginUSA 2025...MSRP: $16.42$14.77 -
V-Twin - 10-1767 - Cam Chain Tensioner Set
V-Twin Mfg
$95.04V-Twin - 10-1767 - Cam Chain Tensioner SetDescriptionCam chain tensioner set. Fits:FLST 1999-2006FXST 1999-2006FLT 1999-2006FXD 1999-2006Additional Information OEM No.39964-94 UOM1 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages158$95.04 -
James Gasket - Rocker Cover Gasket fits '99-'17 Twin Cam Models (OEM #17386-99A)
James Gaskets
$29.95James Gasket - Rocker Cover Gasket fits '99-'17 Twin Cam Models (OEM #17386-99A) Features: Strategically placed elastomer beading helps ensure a positive seal while our clear silicone conformal coating fills in minor imperfections in the flanges and...$29.95 -
Colony - 9002-4 Cap Headbolt Cover fits '86-'98 FXST/FLT/FLST, '91-'98 FXD, 86-94 FXR Models - Chrome
Colony Machine
$14.27Colony - 9002-4 Cap Headbolt Cover fits '86-'98 FXST/FLT/FLST, '91-'98 FXD, 86-94 FXR Models - Chrome Chrome cap headbolt cover. Fitment: FXST 1986-1998 FLT 1986-1998 FXD 1991-1998 FXR 1986-1994 FLST 1986-1998$14.27 -
Colony - 9402-1 Chrome Allen Timing Plug fits '84-'99 FXST, '91-'99 FXD, '82-'94 FXR Models
Colony Machine
MSRP: $17.88$16.09Colony - 9402-1 Chrome Allen Timing Plug fits '84-'99 FXST, '91-'99 FXD, '82-'94 FXR Models Allen timing plug has a chrome finish. Fitment: FXST 1984-1999 FXD 1991-1999 FXR 1982-1994 FLST 1986-1999 FX 1971-1984 FLT 1979-1999 EL 1936-1940 FL...MSRP: $17.88$16.09 -
Colony - Motor Mount Hardware fits '57-'85 Sportster Models (OEM #16218-52, 16230-52, 16237-57) - Chrome
Colony Machine
$46.95Colony - Motor Mount Hardware fits '57-'85 Sportster Models (OEM #16218-52, 16230-52) - Chrome Features: Includes two 3/8"-24 x 613/16" bolts, one 3/8"-24 x 57/16" bolt, one 3/8"-24 x 53/16" bolt, three 3/8"-24 nylock nuts, four 3 /8" serrated...$46.95 -
Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models
Colony Machine
$12.95Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models Features: Split locknuts with 9/32"-32 thread Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special...$12.95 -
Colony - 74" Pushrod Kit fits '48-'52 Panhead w/ Solid Lifters (OEM #17905-48)
Colony Machine
$57.95Colony - 74" Pushrod Kit fits '48-'52 Panhead w/ Solid Lifters (OEM #17905-48) Features: Aircraft-grade aluminum tubing Heat-treated steel tips Fits stock stroke lengths Made in the U.S.A. Fitment: 1949-1952 Harley-Davidson Hydra Glide EL - - ...$57.95 -
Colony - 7143-4 Rocker Shaft End Plugs fits '66-'70 Shovelhead & '57-'70 Sportster Models
Colony Machine
$36.95Colony - 7143-4 Rocker Shaft End Plugs fits '66-'70 Shovelhead & '57-'70 Sportster Models Features: Designed to make installation or removal easier Made in the U.S.A. Fitment 1966-1970 Harley-Davidson Electra Glide...$36.95 -
Colony - 9/16"-18 Replacement Oversized Drain Plug - Chrome
Colony Machine
$9.95Colony - 9/16"-18 Replacement Oversized Drain Plug - Chrome Features: Replacement 9/16"-18 drain plug only Designed for Colony drain plug$9.95 -
Drag Specialties - Rear Master Cylinder Cover fits M8 Softail Models
Drag Specialties
$35.65Drag Specialties - Rear Master Cylinder Cover fits M8 Softail Models$35.65 -
V-Twin - Black Cam Cover fits '01-'17 Twin Cam Models OEM #25369-01A
V-Twin Mfg
$178.20V-Twin - Black Cam Cover fits '01-'17 Twin Cam Models OEM #25369-01A Please note this cam cover comes without a sensor hole. Fitment FXST 2001-2017FLST 2001-2017FXD 2001-2017FLT 2001-2016$178.20 -
Drag Specialties - Spin-On Drop-In Oil Filter Element fits '36-'84 Big Twin Models (Repl. OEM #63840-48A)
Drag Specialties
$11.28Drag Specialties - Spin-On Drop-In Oil Filter Element fits '36-'84 Big Twin Models (Repl. OEM #63840-48A) This is a high-quality drop-in oil filter element. Fitment 1984 Harley-Davidson Electra Glide Special...$11.28 -
Feuling - Headbolt Kit fits '99-'17 Twin Cam and '92-'22 Sportster Models (exc. '21-'22 Sportster S/RH1250S, 22 Nightster/RH975)
Feuling
$299.95Feuling - Headbolt Kit fits '99-'17 Twin Cam and '92-'22 Sportster Models (exc. '21-'22 Sportster S/RH1250S, 22 Nightster/RH975) This kit features wide underhead flange bolts and hardened chamfered washers that provide even load distribution for the...$299.95 -
Cometic - Primary Gasket Kit fits '06-'17 Dyna & '07-'17 Softail Models
Cometic
$121.75Cometic - Primary Gasket Kit fits '06-'17 Dyna & '07-'17 Softail 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...$121.75 -
S&S Cycle - Lower Rocker Box Gasket Kit fits '99-'17 Twin Cam OEM Rocker Boxes Used on S&S Heads
S&S Cycle
$40.95S&S Cycle - Lower Rocker Box Gasket Kit fits '99-'17 Twin Cam OEM Rocker Boxes Used on S&S Heads S&S's Lower Rocker Box Gasket Kit must be used when installing OEM stock rocker boxes on S&S heads. This kit comes with the lower rocker box...$40.95 -
S&S Cycle - Oil Pump and Cam Support Plate Kit fits '17-'21 M8 Models W/ Oil-Cooled Engines
S&S Cycle
$836.95S&S Cycle - Oil Pump and Cam Support Plate Kit fits '17-'21 M8 Models W/ Oil-Cooled Engines S&S Cycle's Oil Pump and Cam Support Plate Kit for '17-'21 M8 Models with Oil-Cooled Engines delivers a 20% flow increase on the supply side as well as a...$836.95 -
S&S Cycle - Chain-Drive Camchest Kits W/ 551CE Easy Start Cams for '99-'17 Twin Cam
S&S Cycle
MSRP: $2,225.95$2,025.95S&S Cycle - Chain-Drive Camchest Kits W/ 551CE Easy Start Cams for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For '07-'17 Twin Cam and '06 Dyna, or (2) For '99-'06 Twin Cam (Except '06 Dyna). Please double-check...MSRP: $2,225.95$2,025.95 -
Feuling - 12-Point External Engine Bolt Fastener Kit fits '04-'17 Sportster Models
$279.95Feuling - 12-Point External Engine Bolt Fastener Kit fits '04-'17 Sportster Models The 12-Point External Engine Bolt Fastener Kit allows you to secure your engine with complete confidence. The kit comes with the following hardware: right side cover,...$279.95 -
S&S Cycle - 124" Power Packages fits '17-'21 M8 Oil-Cooled Engines
S&S Cycle
$2,699.95 - $3,695.95S&S Cycle - 124" Power Packages fits '17-'20 M8 Oil-Cooled Engines This bolt-on Power Package increases your 107" M8 Engine to 124". It comes in a wrinkle black finish and is available with or without fin highlighting. You can also choose between a...$2,699.95 - $3,695.95 -
Trask - Assualt Series Cam Covers fits '17-Up Harley M8 Models
Trask Performance
$429.95Trask - Assualt Series Cam Covers fits '17-Up Harley M8 Models Transparent for viewing internal engine components Matches Assault series of air cleaners Made in the U.S.A. Fitment: 2020 Harley-Davidson CVO Tri Glide...$429.95 -
On Sale
Feuling - Cylinder Stud and Head Bolt Kit - fits '99-'16 Twin Cam
MSRP: $434.95Now: $349.99Was: $429.95The Feuling Cylinder Stud and Head Bolt Kit: The strongest studs and bolts available Top engine builders demand quality fasteners. Secure your engine with complete confidence Superior in strength and performance to any other cylinder stud head bolt kit...MSRP: $434.95Now: $349.99Was: $429.95 -
James Gaskets - Cam Quick Change Gasket Seal Kit Metal w/ Bead - fits '70-'92 FLT, FXR, Softail
James Gaskets
$41.95James Gaskets Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '70-'92 FLT, FXR, Softail$41.95 -
On Sale
Accel - Oil Pressure Switches fits '41-'83 Big Twin Models
Accel
MSRP: $43.56Now: $24.99Was: $44.95Accel - Oil Pressure Switches fits '41-'83 Big Twin Models Features: The Accel Oil Pressure Switches are reliable and will protect your motorcycle engine. Heavy duty contacts, brass ferrules and corrosion resistant plated steel shells are used for...MSRP: $43.56Now: $24.99Was: $44.95 -
James Gaskets - Gasket O-Ring Kit, Cam Quick Change - fits '99-Up Twin Cams
James Gaskets
$56.95James Gaskets Twin Cam Gasket Kits uses state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '99-Up Twin Cam Models$56.95
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.