Engine
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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 -
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 -
Drag Specialties - Spherical Radius Points Cover fits '99-'17 Twin Cam Models
Drag Specialties
$18.95 - $20.95Drag Specialties - Spherical Radius Points Cover fits '99-'17 Twin Cam Models Available in your choice of a chrome, flat black or wrinkle black finish. Features Beautiful radiused points cover matches our brake caliper inserts and fork tube cap...$18.95 - $20.95 -
On Sale
S&S Cycle - Rocker Arm Shafts fits '17-'20 M8 Models (Repl. OEM #17300059B)
S&S Cycle
MSRP: $169.95Now: $156.56Was: $173.95S&S Cycle - Rocker Arm Shafts fits '17-'20 M8 Models (Repl. OEM #17300059B) These rocker arm shafts are built with bearing-quality steel and precision-centerless ground for the perfect fit. They are stronger than stock shafts to resist issues from...MSRP: $169.95Now: $156.56Was: $173.95 -
Drag Specialties - Gloss Black Tappet Block Cover fits '17 & Up Harley M8 Models Repl. OEM #25700890
Drag Specialties
$76.95Drag Specialties - Gloss Black Tappet Block Cover fits '17 & Up Harley M8 Models Repl. OEM #25700890 Features Made from die-cast aluminum Includes gaskets and screws Fitment 2020 Harley-Davidson Softail Low Rider S...$76.95 -
Alloy Art - Front Motor Plate fits '84-'00 FXR & '80-'98 FL Models (see desc.)
Alloy Art
$169.95 - $179.95Alloy Art - Front Motor Plate fits '84-'00 FXR & '80-'98 FL Models (see desc.) Lighter and stronger than stock CNC-machined aluminum construction Hardware included Made in the U.S.A. Available in machined or black anodized...$169.95 - $179.95 -
Drag Specialties - M-Eight Engine Bolt Kits
Drag Specialties
$12.95 - $89.95Drag Specialties M-Eight Engine Bolt Kits These bolt kits by Drag Specialties fit 2017-2018 M-Eight Models, be sure to check your fitment before making your purchase. The kits available are the Starter bolt kit, Transmission side cover bolt kit,...$12.95 - $89.95 -
On Sale
Colony - Top Motor Mount Acorn Bolts and Washers - fits Harley FL and FX (see desc.)
Colony Machine
MSRP: $26.49Now: $23.99Was: $26.49Top 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: $19.26Rocker 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 - Crankcase Oil Screen & Spring Kit fits '70-'99 Big Twin & All Aftermarket Cases (OEM #24981-70, 24982-70)
Colony Machine
$8.95Colony - 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 -
PC Racing - Flo® "Spin-On" Oil Filter fits '17-'23 M-Eight, '99-'17 Twin Cam, '86-'22 XL Models (Except RH Sportsters); '09-'12 XR1200
PC Racing
$149.95PC Racing - Flo® "Spin-On" Oil Filter fits '17-'23 M-Eight, '99-'17 Twin Cam, '86-'22 XL Models (Except RH Sportsters); '09-'12 XR1200 Features: Flows 7 times more than paper or synthetic filters while filtering to 35 microns (absolute, 1 pass...$149.95 -
V-Twin - Black Top Engine Mount Stabilizer fits '92-'04 Dyna Models
V-Twin Manufacturing
$142.94V-Twin - Black Top Engine Mount Stabilizer fits '92-'04 Dyna Models V-Twin's Black 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...$142.94 -
Feuling - Gorilla Rocker Shaft and Bolt Kit fits '01-'17 Harley Models
Feuling
$269.95Feuling - Gorilla Rocker Shaft and Bolt Kit fits '01-'17 Harley Models This kit is recommended for all Twin Cam engines, especially for engines running higher lift camshafts and heavier valve springs. Features Gas nitrided and final surface...$269.95 -
Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Models
Feuling
$479.95Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Models These cylinder head breathers are constructed from billet 6061 aluminum with square surfaces, guaranteeing outstanding umbrella valve sealing and longer main breather exit nipples...$479.95 -
On Sale
S&S Quickee Pushrod Kit w/ Chrome Covers for Harley Twin Cam 1999-2017
S&S Cycle
MSRP: $289.95Now: $278.96Was: $309.95S&S Quickee Pushrod Kit w/ Chrome Covers for Harley Twin Cam 1999-2017 Kits include four S&S Quickee pushrods, four pushrod covers, O-rings Pushrods are manufactured from chromoly steel for superior strength Pushrod covers have a gloss black...MSRP: $289.95Now: $278.96Was: $309.95 -
Out of stockOn Sale
S&S Gloss Black Pushrod Tube Keepers for Twin Cam 1999-2017
S&S Cycle
MSRP: $79.95Now: $36.86Was: $40.95S&S Gloss Black Pushrod Tube Keepers for Twin Cam 1999-2017 Simple, effective way to enhance the look of your engine Sold in a set of fourMSRP: $79.95Now: $36.86Was: $40.95 -
Custom Cycle Engineering - Top Stabilizer Link - fits '04-'17 Harley Dyna
Custom Cycle Engineering
$391.95Custom Cycle Engineering - Top Stabilizer Link - fits '04-'17 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...$391.95 -
Feuling - Cylinder Stud Kit - fits '99-'16 Twin Cam , '85-'99 Evo Big Twin
Feuling
$119.95 - $129.95The Feuling Cylinder Stud Kit: The stongest studs available Feuling studs are installed to a torque spec can be reused and carry a lifetime warranty Heat-treated 8740 chrome moly studs Stock replacement Kit includes 8 cylinder studs, moly assembly...$119.95 - $129.95 -
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 -
V-Twin - Black Rear Motor Mount fits '91-'98 Dyna Models OEM #47564-90B
V-Twin Manufacturing
$135.54V-Twin - Black Rear Motor Mount fits '91-'98 Dyna Models OEM #47564-90B Replacement rear motor mount for 1991 to 1998 Harley Davidson Dyna models. Fitment FXD 1991-1998$135.54 -
On Sale
S&S Cycle - Quickee Pushrod Kit with Gloss Black Covers fits '17-Up M8 Models
S&S Cycle
MSRP: $309.95Now: $301.46Was: $334.95S&S Cycle - Quickee Pushrod Kit with Gloss Black Covers fits '17-Up M8 Models The S&S Cycle Quickee Pushrod Kit with Gloss Black Covers is the perfect upgrade for '17-Up M8 Models. The kit includes four S&S Quickee pushrods, four pushrod...MSRP: $309.95Now: $301.46Was: $334.95 -
On Sale
S&S Cycle - TC3 Oil Pump- fits '07-'17 Twin Cam & '06 Dyna Models
S&S Cycle
MSRP: $489.95Now: $449.96Was: $499.95S&S Cycle - TC3 Oil Pump- fits '07-'17 Twin Cam & '06 Dyna Models Features: Three stages for consistent pressure and reliable scavenging Separate scavenge sections for flywheel cavity and cam chest (no interface) Screens and magnetic traps...MSRP: $489.95Now: $449.96Was: $499.95 -
Slyfox - Gloss Cabon Fiber Timing Cover fits '17-'21 M8 Softail Models
Slyfox
$64.95Slyfox - Gloss Cabon Fiber Timing Cover fits '17-'21 M8 Softail Models This Slyfox timing cover is a replacement for the stock timing cover and comes in a sleek gloss carbon finish. Fitment 2021 Harley-Davidson Electra Glide...$64.95 -
On Sale
Arlen Ness - 10-Gauge Lifter Block Covers fits '99-'17 Twin Cam Models (Choose Finish)
Arlen Ness
$179.96 - $188.96Arlen Ness - 10-Gauge Lifter Block Covers fits '99-'17 Twin Cam Models These 10-gauge lifter blocks act as replacements for OEM lifter blocks and accept factory and aftermarket pushrod tubes. Available in your choice of a chrome, black anodized W/...$179.96 - $188.96 -
On Sale
S&S Cycle - Chain-Drive Camchest Kits W/ 509C Standard Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
MSRP: $2,019.95Now: $1,854.86Was: $2,060.95S&S Cycle - Chain-Drive Camchest Kits W/ 509C Standard Cams for '99-'06 Twin Cam (Except '06 Dyna) Features Upgrade to S&S bolt-in performance chain-drive or gear-drive camshafts Improves engine performance - higher lift and optimized cam...MSRP: $2,019.95Now: $1,854.86Was: $2,060.95 -
V-twin Trimmed Cam Cover fits '04-Up XL Sportster - Gloss Black
V-Twin Manufacturing
$261.33V-twin Trimmed Cam Cover fits '04-Up XL Sportster - Gloss Black V-twin took all the work out of trimming down your Sportster Cam Cover, no more cutting and grinding all of the excess casting to get that trimmed look! This cover fots 2004 and later...$261.33 -
Kibblewhite Precision Machining - Rocker Arm Bushing - fits '84-'99 Evo Big Twin, '86-'14 Evo Sportster, '66-'83 Shovelhead
Kibblewhite Precision Machining
$33.95The Kibblewhite Precision Machining Rocker Arm Bushing: Bronze rocker bushing material meets the high standards KPMI set for success KPMI tested and analyzed several bearing-bronze materials for anti-friction qualities, hardness, and resistance to...$33.95 -
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 -
V-Twin - Cam Gear Bushing Set fits '57-'90 XL Sportster
V-Twin Manufacturing
$62.92Bushing set include bushings for #1, 2, 3, 4 cams. NOTE: Bushing set is for outer cam cover. Set of four. Fits: XL 1957-1990 OEM No: 25588-80$62.92 -
Gasbox - Custom Top Motor Mounts - Fits '04-'16 XL Models
Gasbox
MSRP: $74.95$49.95Gasbox Custom Top Motor Mounts w/ crank key mount and coil mount Designed for OEM Fuel-injected coil Made in the USAMSRP: $74.95$49.95 -
V-Twin - Black Nose Cone Gear Cover fits '93-'99 Big Twin Models
V-Twin Manufacturing
$161.80V-Twin - Black Nose Cone Gear Cover fits '93-'99 Big Twin Models V-Twin's Nose Cone Gear Cover is designed to fit Big Twin Models. The bushings are installed and a seal is included. Fitment FXD 1993-1999FXST 1993-1999FXR 1993-1994FLST 1993-1999FLT...$161.80 -
Feuling - Lifter Block, Cam Cover & Oil Filter Adapter Dress Up Fastener Sensor Kit fits '99-'17 Twin Cam Models (22 Pieces)
Feuling
$99.95Feuling - Lifter Block, Cam Cover & Oil Filter Adapter Dress Up Fastener Sensor Kit fits '99-'17 Twin Cam Models This kit features precision-rolled threads for the utmost engagement in order to stop galling and deliver better regular torque loading...$99.95 -
Feuling - Primary Bolt Fastener Kit fits '91-'03 Sportster Models
Feuling
$119.95Feuling - Primary Bolt Fastener Kit fits '91-'03 Sportster Models This is a complete external fastener kit specifically designed for certain Harley-Davidson Sportster models. NOTE: Primary cover, clutch cover, A1/4" stainless steel washers...$119.95 -
On Sale
S&S Cycle - 128" Power Packages fits '17-'21 M8 Oil-Cooled Engines
S&S Cycle
MSRP: $3,359.95Now: $3,114.86Was: $3,460.95S&S Cycle - 128" Power Packages fits '17-'20 M8 Oil-Cooled Engines This Power Package increases your 114"/117" with a 4-1/2" stroke M8 to 128". It is available in a wrinkle black or black granite finish and your choice of cylinders with or without...MSRP: $3,359.95Now: $3,114.86Was: $3,460.95Qty in Cart: 0Quantity:Price:MSRP: $3,359.95Now: $3,114.86Was: $3,460.95Subtotal: -
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 -
On Sale
S&S Pushrod Tubes - fits '17-'21 M-Eight & '99-'17 Twin Cam
S&S Cycle
MSRP: $199.95Now: $183.56Was: $203.95S&S Pushrod Tubes - fits '17-'21 M-Eight & '99-'17 Twin Cam Features: Stylish Black pushrod tubes enhance the look of your engine Great match for the Black engine covers offered on some new HD models Pushrod Tubes only Requires separate...MSRP: $199.95Now: $183.56Was: $203.95 -
On Sale
S&S Headbolt Kit - fits '17-'18 M8
S&S Cycle
Now: $179.96Was: $199.95S&S Headbolt Kit - fits '17-'18 M8 Features: Made from heat-treated 8640 steel 200,000 psi ultimate tensile strength Stronger than the stock bolts Durable black oxide coating Formed threads Cold-formed 9/16" 12-point head with integral...Now: $179.96Was: $199.95 -
HardDrive - 80" Shovelhead Cylinder - (Front or Rear)
HardDrive
$185.95The HardDrive 80" Shovelhead Cylinder: Black powder-coated cast iron cylinders All cylinders must be finish honed and matched to pistons Sold each$185.95 -
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
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.