Engine
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Out of stock
EMD - Rocker Covers - fits '17-Up M8
EMD
$499.95 - $539.95EMD - Rocker Covers - fits '17-Up M8 Dress up your M8 with a Rocker Cover by EMD. Features: Available in Classic Ribbed or Shovel design Available in Black or Raw finish Gaskets sold separately Fitment: 2019 - FXDR Softail Power...$499.95 - $539.95 -
Out of stock
V-Twin - 883-1200cc Cylinder and Piston Conversion Kit - fits '86-'03 XL
V-Twin Mfg
$513.431200cc XL cylinder and piston conversion kit includes two black finished cylinders with milled edge fin and fitted Sifton moly 9.5:1 reverse dome piston and ring set. Fits: XL 1986-2003$513.43 -
Out of stock
V-Twin - 107" Big Bore Twin Cam Cylinder Kit fits '99-'06 FLST/FXST/FLT/FXD Model
V-Twin Mfg
$786.03V-Twin - 107" Big Bore Twin Cam Cylinder Kit fits '99-'06 FLST/FXST/FLT/FXD Model 107" Twin Cam big bore cylinder kit includes 10.5:1 piston kit and steel cylinders with black finish. Requires case machining and fits a 4" stroke flywheel...$786.03 -
Out of stock
V-Twin - Black Rear Motor Mount fits '91-'98 Dyna Models OEM #47564-90B
V-Twin Mfg
MSRP: $153.36$139.42V-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 1991-1998MSRP: $153.36$139.42 -
Out of stock
S&S Cycle - Quickee Pushrod Kit with Gloss Black Covers fits '17-Up M8 Models
S&S Cycle
$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...$334.95 -
Out of stock
S&S Cycle - Chain-Drive Camchest Kits W/ 509C Standard Cams for '99-'06 Twin Cam (Except '06 Dyna)
S&S Cycle
MSRP: $2,060.95$1,924.95S&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: $2,060.95$1,924.95 -
Out of stock
Gasbox - Custom Top Motor Mounts - Fits '04-'16 Sportster Models
Gasbox
$49.95Gasbox Custom Top Motor Mounts w/ crank key mount and coil mount Designed for OEM Fuel-injected coil Made in the USA$49.95 -
Out of stock
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 -
Out of stock
EMD - Knuckle Style Cam Cover - Fits '91-Up XL Models
EMD
$178.95 - $195.95EMD - Knuckle Style Cam Cover - Fits '91-Up XL Models Features Fits over OEM Cam Cover Held in place with 3 supplied Allen bolts and spacers Can be notched at upper front to make room for your OEM breather Available in Raw or Black Features cast...$178.95 - $195.95 -
Out of stock
Motorshop - Chrome Tappet Block Lifter Kit fits '53-'84 FL Model
Motorshop
$232.87Motorshop - Chrome Tappet Block Lifter Kit fits '53-'84 FL Model Kit includes chrome tappet block set and standard solid lifter set to be used with stock solid pushrods on Big Twin, Panhead and Shovelhead models. Tappets have lightning holes for...$232.87 -
Out of stock
V-Twin - 32-1662 - M8 Oil Pressure Switch
V-Twin Mfg
$39.64V-Twin - 32-1662 - M8 Oil Pressure SwitchDescriptionPrecision calibrated oil pressure switch for M8 models. Fits:FXST 2017-2022FLT 2017-2022FLST 2017-2022Additional Information OEM No.71400112A UOM1 - EA ManufacturerV-Twin OriginImported 2025...$39.64 -
Out of stock
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 -
Out of stock
Drag Specialties - Cam Chain Tensioner Kit fits '07-'17 Twin Cam & '06 Dyna Models (Repl. OEM #S 39968-06/39969-06)
Drag Specialties
$91.62Drag Specialties - Cam Chain Tensioner Kit fits '07-'17 Twin Cam & '06 Dyna Models (Repl. OEM #S 39968-06/39969-06) Features Stock replacement hydraulic cam chain tensioners Sold as a primary/secondary 2-piece...$91.62 -
Out of stock
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 -
Out of stock
S&S Cycle - Wrinkle Black 124" Big Bore Kit W/O Highlighted Cylinder Fins fits '17-'21 107" M8 Engines
S&S Cycle
$1,561.95S&S Cycle - Wrinkle Black 124" Big Bore Kit W/O Highlighted Cylinder Fins fits '17-'21 107" M8 Engines This is a bolt-on kit that features the biggest bore possible with no machining of the crankcases necessary! It includes all of the required...$1,561.95 -
Out of stock
Jagg - Vertical Frame Mount 6-Row Oil Cooler System
Jagg Oil Coolers
$399.95 - $449.95Jagg - Vertical Frame Mount 6-Row Oil Cooler System Jagg's Vertical Frame Mount 6-Row Oil Cooler System is a must-have performance part for Harley owners. This cooler mounts to the left frame down-tube, spaced away from the frame to deliver airflow to...$399.95 - $449.95 -
Out of stock
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 -
Out of stock
Drag Specialties - High-Performance Oil Pump fits '17-Up M8 Twin-Cooled Motors
Drag Specialties
$155.95Drag Specialties - High-Performance Oil Pump fits '17-Up M8 Twin-Cooled Motors The High-Performance Oil Pump features high-quality die-cast aluminum body construction, and high-strength steel gear construction. Features Helps to reduce oil...$155.95 -
Out of stock
Paughco - 1-3/4" Mounting Clamp
Paughco
$37.95Paughco 1-3/4" Mounting Clamp Mounting clamp required to install 1800-1867 (Paughco 1-3/4" Drag Pipes for FL Models, 34" pipes).$37.95 -
Out of stock
James Gaskets - Twin Cam Top End Gasket Kit w/ MLS Head Gaskets - fits '99-'04
James Gaskets
$144.95James 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-'04 Twin Cam Models$144.95 -
Out of stock
V-Twin - 1200cc Cylinder and Piston Conversion Kit fits '04-Up XL - Black
V-Twin Mfg
$713.811200cc XL Conversion cylinder and piston set includes 2 black finished with milled edge fin cylinders with fitted Wiseco moly 9.5:1 reverse dome piston ring set. Order head base gasket separately. Fits: XL 2004- Up Measurements Piston Size: 3...$713.81 -
Out of stock
V-Twin - 11-1685 - OE Rear Rocker Box Breather Valve
OE
MSRP: $37.91$33.77V-Twin - 11-1685 - OE Rear Rocker Box Breather ValveDescriptionOE rear breather valve for the rocker box. Fits:XL 2007-UPAdditional Information OEM No.26020-07 UOM1 - EA ManufacturerOE OriginUSA 2025 Catalog Pages857MSRP: $37.91$33.77 -
Out of stock
Drag Specialties - DS246010 - Rocker Oil Line Set - Chrome - Shovelhead
Drag Specialties
$32.91Drag Specialties - DS246010 - Rocker Oil Line Set - Chrome - ShovelheadFeaturesChromed steel overhead oil line set includes crossover line and crankcase-to-rocker box lineComplete with fittings and seals, which are also available separatelySpecsBase...$32.91 -
Out of stock
Drag Specialties - DS243515 - Front ISO-Mount™ Motor Mount - Rubber
Drag Specialties
$27.76Drag Specialties - DS243515 - Front ISO-Mount™ Motor Mount - RubberFeaturesUrethane motor mount specially designed to out-last and out-dampen the OEM partSold individuallyReplacement Part for OEM Number(s):1620779BSpecsUnitsEachRiding...$27.76 -
Out of stock
Jims - 24600-58B - Crankcase Bushing
Jims
$160.10Jims - 24600-58B - Crankcase Bushing Features 360 oiling Made in the U.S.A. Replacement Part for OEM Number(s): 2460058,2460058A,2460058B Specs Features Size is +.002'' Riding Style Street Product...$160.10 -
Out of stock
Feuling Parts - 1230 - Rocker Shaft Shims - 0.003"/0.005"/0.010" - M8
Feuling
$79.95Feuling Parts - 1230 - Rocker Shaft Shims - 0.003"/0.005"/0.010" - M8FeaturesQuiet your engine by tightening the rocker arm to cylinder head end play clearanceFeuling recommends an ideal side clearance of 0.0035” - 0.005” for optimum rocker arm oil psi...$79.95 -
Out of stock
Cometic - C9588 - Rocker Box Gasket Kit - Twin Cam
Cometic
$46.15Cometic - C9588 - Rocker Box Gasket Kit - Twin CamFeaturesPremium materials used for specific applications to provide a long, service free lifeKits include all gaskets, seals, O-rings and quality bolt seals needed when servicing both rocker boxesMade in...$46.15 -
Out of stock
Cometic - C9646F1 - Oil Pan Gasket - Dyna
Cometic
$13.60Cometic - C9646F1 - Oil Pan Gasket - DynaFeaturesAluminum Foamette Material gaskets feature an aluminum core and a chemically blown, compounded nitrile synthetic rubber coating that is bonded to the outside layer; do not require gasket sealerMade in the...$13.60 -
Out of stock
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 -
Out of stock
Drag Specialties - Oil Filter fits 'L82-'84 FLH, 'L82-'86 FX/FXWG, '80-'E84 Sportster Models (OEM #63782-80A, 63810-80)
Drag Specialties
$10.25 - $12.31Drag Specialties - Oil Filter fits 'L82-'84 FLH, 'L82-'86 FX/FXWG, '80-'E84 Sportster Models (OEM #63782-80A, 63810-80) Features: High-quality spin-on filters are a dependable replacement Fitment 1985 Harley-Davidson Fat Bob...$10.25 - $12.31 -
Out of stock
V-Twin - Black Top Rocker Box Cover and D-Ring Kit fits '86-'03 Sportster Model
V-Twin Mfg
$292.44V-Twin - Black Top Rocker Box Cover and D-Ring Kit fits '86-'03 Sportster Model Black top rocker box cover set includes d-ring kit. Fitment: XL 1986-2003$292.44 -
Out of stock
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 -
Out of stock
Feuling - 574 Race Series® Chain Drive Camchest Kits for All '07-'17 Twin Cam and '06 Dyna Glide
Feuling
$1,879.95Feuling - 574 Race Series® Chain Drive Camchest Kits for All '07-'17 Twin Cam and '06 Dyna Glide Features All necessary components from top to bottom of the camchest All parts work and function together in total harmony Provide maximum...$1,879.95 -
Out of stock
HardDrive - 80" Evo Cylinder - fits Front and Rear
HardDrive
$321.95HardDrive 80" Evo Cylinder Features: Aluminum cylinders with cast iron sleeves All cylinders must be finish honed and matched to pistons Sold each$321.95 -
Out of stock
HardDrive - 74" Panhead Cylinder - (Front or Rear)
HardDrive
$185.95The HardDrive 74" Panhead Cylinder: Black powder-coated cast iron cylinders All cylinders must be finish honed and matched to pistons Sold each$185.95 -
Out of stock
V-Twin - 42-1158 - Head Bolt and Spark Plug Cover Kit Chrome
V-Twin Mfg
MSRP: $56.55$54.96V-Twin - 42-1158 - Head Bolt and Spark Plug Cover Kit ChromeDescriptionChrome cylinder head bolt and spark plug cover kit. Fits:XL 2004-UPAdditional Information OEM No.44432-04 UOM1 - KIT ManufacturerV-Twin OriginImported 2025 Catalog Pages854MSRP: $56.55$54.96 -
Out of stock
V-Twin - 12-1966 - Satin Rocker Arm Shaft End Caps
Motorshop
$8.62V-Twin - 12-1966 - Satin Rocker Arm Shaft End Caps Description Rocker shaft end caps are 7/16" X 20 thread pitch with a brushed nickel finish.Sold as a set of 4. Fits: FX 1971-1984 FXR 1982-1983 FL 1966-1984 XL 1957-1985 FLT...$8.62 -
Out of stock
V-Twin - 11-2237 - 80 inch FLH-FX Piston Set .020 Oversize
Keith Black
$268.46V-Twin - 11-2237 - 80 inch FLH-FX Piston Set .020 Oversize Description Keith Black dome piston set is .020 oversize with a 7.2:1 compression ratio for 1980-1984 80" Shovelhead models.The Keith Black 390 hypereutectic alloy is cast in a permanent steel...$268.46 -
Out of stock
V-Twin - 11-2000 - Chrome Intake Valve
Crane
$9.86V-Twin - 11-2000 - Chrome Intake Valve Description Crane chrome intake valve Fits: FLT 1979-1983 FX 1971-1984 FXR 1982-1983 FL 1966-1984 Additional Information OEM No. 18074-66 UOM 1 -...$9.86 -
Out of stock
V-Twin - 11-1886 - Ampco 45 .004 Intake Valve Guide
Rowe
$10.67V-Twin - 11-1886 - Ampco 45 .004 Intake Valve GuideDescriptionRowe .004 intake valve guide is made of ampco 45 Fits:FX 1979-1984FLT 1979-1983FXR 1982-1983FL 1979-1984Additional Information UOM1 - EA ManufacturerRowe MaterialAmpco 45 OriginUSA Size...$10.67
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.