Engine
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Colony Machine - Rocker Cover Bolt Kit fits '99-'17 Twin Cam
Colony Machine
$24.95Colony Machine - Rocker Cover Bolt Kit fits '99-'17 Twin Cam The Colony Machine Rocker Cover Kit is a polished Allen Bolt Kit that is 100% manufactured in the U.S.A. Colony Machine is a choice brand among custom motorcycle builders, specializing in...$24.95 -
Cometic - Primary Gasket Kit fits '18-'22 M8 Softail Models
Cometic
$86.05Cometic - Primary Gasket Kit fits '18-'22 M8 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 rubber which is...$86.05 -
Colony - Fitting Oil Line (OEM #63553-41)
Colony Machine
$4.95Colony - Fitting Oil Line (OEM #63553-41) Features: For use with 3/8" hose Thread is 1/8" NPT$4.95 -
Cometic - Primary Gasket Kit fits '94-'06 Softail & '94-'05 Dyna Glide Models
Cometic
$138.55Cometic - Primary Gasket Kit fits '94-'06 Softail & '94-'05 Dyna Glide 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...$138.55 -
Cometic - Breather Assembly Gasket Kit fits '03-'17 Twin Cam Models (Sold Each)
Cometic
$20.95Cometic - Breather Assembly Gasket Kit fits '03-'17 Twin Cam Models (Sold Each) This kit comes with all necessary gaskets/seals for a full breather rebuild assembly. Please Note: Breather assembly rebuild kit includes two metal breather plates, two...$20.95 -
Colony - Head Bolt Set fits '99-'17 Twin Cam & '92-'22 Sportster Models (Except RH Sportster (OEM #16478-85A, 16480-92))
Colony Machine
$86.95Colony - Head Bolt Set fits '99-'17 Twin Cam & '92-'22 Sportster Models (Except RH Sportster (OEM #16478-85A, 16480-92)) Features: 12-point replacement headbolts Made in the U.S.A. Fitment 2016-2017 Harley-Davidson Softail Slim S...$86.95 -
Colony - Chrome Rocker Cover Screw Kit fits Harley XL, FL, FXD - Allen
Colony Machine
$23.95Colony - Chrome Rocker Cover Screw Kit fits Harley XL, FL, FXD - Allen Colony Machine Rocker box screw set, Chrome Allen style. Fits: 2000 Harley-Davidson FXR 4 - - 1999 Harley-Davidson FXR 3 - - 1999 Harley-Davidson FXR...$23.95 -
Cometic - Primary Gasket Kit fits '17-'22 M8 Touring Models
Cometic
$87.10Cometic - Primary Gasket Kit fits '17-'22 M8 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...$87.10 -
On Sale
Colony - Top Motor Mount Acorn Bolts and Washers - fits Harley FL and FX (see desc.)
Colony Machine
MSRP: $26.49Now: $23.99Was: $26.49Colony - Top Motor Mount Acorn Bolts and Washers - fits Harley FL and FX (see desc.) Top motor mount acorn bolts & washers. Fits: EL 1936-1940 FL 1941-1984 FX 1971-1984MSRP: $26.49Now: $23.99Was: $26.49 -
On Sale
Colony - Rocker Arm Shaft Acorn Nut and Washer Kit - fits Harley FL, FX, and XL ( see desc.)
Colony Machine
MSRP: $19.26Now: $16.99Was: $19.26Colony - Rocker Arm Shaft Acorn Nut and Washer Kit - fits Harley FL, FX, and XL ( see desc.) Rocker arm shaft chrome acorn nut and washer kit. Fits: FL 1966-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1957-1985MSRP: $19.26Now: $16.99Was: $19.26 -
Colony Machine - Crankcase Oil Screen & Spring Kit fits '70-'99 Big Twin & All Aftermarket Cases (OEM #24981-70, 24982-70)
Colony Machine
$8.95Colony Machine - Crankcase Oil Screen & Spring Kit fits '70-'99 Big Twin & All Aftermarket Cases (OEM #24981-70, 24982-70) Features: Tappet screen and spring Made in the USA Fitment 1999 Harley-Davidson Softail Night Train...$8.95 -
Colony - Ignition Cover Timer Stud Kit fits '80-'99 Big Twin, '80-'85 Sportster Models (OEM #32601-80, 32606-82)
Colony Machine
$13.95Colony - Ignition Cover Timer Stud Kit fits '80-'99 Big Twin, '80-'85 Sportster Models (OEM #32601-80, 32606-82) Features: Reproduction of original ignition timer cover studs Made in the U.S.A. Fitment 2002-2003 Harley-Davidson 883...$13.95 -
On Sale
Colony - Rocker Shaft End Plug And Cap Kit - fits '71-Up Shovelhead and '71-'85 XL Models
Colony Machine
MSRP: $46.95Now: $39.99Was: $47.95The Colony Rocker Shaft End Plug and Cap Kit: Meets or exceeds OEM specifications Made in the USA Chrome plated allen style Fitment: '71-Up Shovelhead and '71-'85 XL ModelsMSRP: $46.95Now: $39.99Was: $47.95 -
Colony - Rocker Shaft End Plugs - fits '66-'70 FL, '57-'70 XL
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 1966-1970 XL 1957-1970$39.99 -
Colony Machine - Engine Bolt Kits fits '09-'16 Touring Models
Colony Machine
$243.95Colony Machine - Engine Bolt Kits fits '09-'16 Touring Models The Colony Machine Engine Bolt Kit is a fully equipped, chrome plated kit that is 100% manufactured in the U.S.A. Colony Machine is a choice brand among custom motorcycle builders,...$243.95 -
Colony - Cylinder Base Stud Set - fits '57-'88 XL
Colony Machine
$37.95Colony cylinder base stud set is heat treated with a interference thread. Fits:XL 1957-1988K 1954-1956$37.95 -
Colony - Acorn Headbolt Covers - Chrome fits Harley FL and FX (see desc.)
Colony Machine
$23.99Chrome acorn type headbolt covers Fits: FXST 1986-1998 FLST 1986-1998 FLT 1986-1998 FXR 1986-1994 FXD 1991-1998$23.99 -
On Sale
Colony - Cam Cover Allen Screws fits Harley FL, FX (see desc.) - Chrome
Colony Machine
MSRP: $19.26Now: $16.99Was: $19.26Colony Cam cover allen screws. Fits:FL 1970-1984FX 1971-1984FXST 1984-1992FLT 1984-1992FXR 1984-1992FLST 1986-1992 UOM: 7 - SETMSRP: $19.26Now: $16.99Was: $19.26 -
On Sale
Colony - Chrome Rocker Cover Screw Kit fits Harley XL, FL, FXD - Acorn
Colony Machine
MSRP: $33.98Now: $29.99Was: $33.98Colony Machine Rocker box screw set, Chrome Acorn style. Fits: FXST 1984-1998 FLST 1986-1998 FLT 1984-1998 FXR 1984-1994 FXD 1991-1998 XL 1986-UPMSRP: $33.98Now: $29.99Was: $33.98 -
Colony - Ignition Cover Timer Stud Kit fits '70-'79 Big Twin as, '70-'79 Sportster Models (OEM #32601-78)
Colony Machine
$13.95Colony - Ignition Cover Timer Stud Kit fits '70-'79 Big Twin as, '70-'79 Sportster Models (OEM #32601-78) Features: Reproduction of original ignition timer cover studs Made in the U.S.A. Fitment 1979 Harley-Davidson Roadster 1000...$13.95 -
Colony - 9644-2 Chrome OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - 9644-2 Chrome OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80) Features: Made in the U.S.A. Fitment 1999 Harley-Davidson Softail Night Train FXSTB - - 1998 Harley-Davidson Road King...$10.95 -
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 -
Colony Machine - Lower Rocker Box Mounting Kit fits '86-'20 XL Models
Colony Machine
$34.95Colony 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,...$34.95 -
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 -
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 - 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 -
Cometic - Primary Gasket Kit fits '77-'90 Sportster Models
Cometic
$56.65Cometic - Primary Gasket Kit fits '77-'90 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 -
Colony - Cylinder Base Nut Set - Chrome fits '57-'84 XLR
Colony Machine
$39.99Colony C chrome cylinder base nuts. Fits: XLR 1957-1984$39.99 -
Colony - 8401-8 Rocker Shaft Cadmium End Cap Type Nuts with Washers fits '79-'83 FLT, '71-'84 FX, '82-'83 FXR Models
Colony Machine
$21.52Colony - 8401-8 Rocker Shaft Cadmium End Cap Type Nuts with Washers fits '79-'83 FLT, '71-'84 FX, '82-'83 FXR Models Rocker arm shaft end nut kit contains 4 cap nuts and washers with cadmium. Fitment: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL...$21.52 -
Cometic - C10178 - Cam Change Gasket Kit - M8
Cometic
$39.85Cometic - C10178 - Cam Change Gasket Kit - M8FeaturesComponents made from premium materials for long life and correct fitmentIncludes all necessary gaskets, seals, O-rings and cork washers to do a cam changeMade in the USAReplacement Part for OEM...$39.85 -
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 - 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 -
Cometic - Primary Gasket Kit fits '07-'16 Touring & H-D FL Trike Models
Cometic
$121.75Cometic - Primary Gasket Kit fits '07-'16 Touring & H-D FL Trike 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 -
On Sale
Colony - Cylinder Head Bolt Set - Chrome fits Harley FL, FX, and XL (see desc.)
Colony Machine
MSRP: $109.98Now: $107.99Was: $109.98Colony cylinder head bolt set with a chrome finish. Fits: FXST 1985-1991 XL 1986-1992 FLST 1986-1991 FLT 1985-1991 FXR 1985-1991 UOM: 8 - SETMSRP: $109.98Now: $107.99Was: $109.98 -
Colony - Acorn Cam Cover Screw Set fits Harley FL, FX (see desc.) - Chrome
Colony Machine
$27.99Acorn cam cover screw Fits:FL 1970-1984FX 1971-1984FLT 1979-1992FXR 1982-1992FXST 1984-1992FLST 1986-1992FXD 1991-1992$27.99 -
V-Twin - 15-1316 - Cometic Cam Cover Gasket
Cometic
$17.92V-Twin - 15-1316 - Cometic Cam Cover GasketDescriptionCometic AFM cam cover gasket.*NOTE: AFM denotes foam surface that is bonded to aluminum. Fits:FLT 1999-2016FLST 1999-2017FXST 1999-2017FXD 1999-2017Additional Information UOM1 - EA ...$17.92 -
Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Models
Colony Machine
$7.86Colony - 9752-4 Allen Type Oil Filter Adapter Screw Kit fits '86-Up Sportster Models Allen type oil filter adapter screw kit Fitment: XL 1986-UP$7.86 -
Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Models
Colony Machine
$15.86Colony - 9760-4 Allen Type Tappet Block Screw Kit fits '95-'03 Sportster Models Tappet block allen type screw kit. Fitment: XL 1995-2003$15.86 -
Colony - 9772-22 Allen Type Lower Motor Mount Kit fits '86-Up Sportster Models
Colony Machine
$44.27Colony - 9772-22 Allen Type Lower Motor Mount Kit fits '86-Up Sportster Models Lower motor allen type mount kit. Fitment: XL 1986-UP$44.27
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.