Engine
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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
Kibblewhite Precision Machining - Rocker Arm Bushing - fits '84-'99 Evo Big Twin, '86-'14 Evo Sportster, '66-'83 Shovelhead
Kibblewhite
$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 -
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
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
S&S Cycle - 128" Power Packages fits '17-'21 M8 Oil-Cooled Engines
S&S Cycle
$3,359.95 - $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...$3,359.95 - $3,460.95 -
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
Colony - 2709-24 Knurled Motor Mount Bolt Kit fits '09-'16 FLT Model (OEM #4313, 4688)
Colony Machine
$31.95Colony - 2709-24 Knurled Motor Mount Bolt Kit fits '09-'16 FLT Model (OEM #4313, 4688) Features: Individual bolt and nut sets for specific applications Bolt kits include allen screws, nuts and washers Replacement Part for...$31.95 -
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 - Paper Oil Filter fits '65-'82 FX/FL, '57-'78 Sportster Models (OEM #53839-59, 63840-53)
Drag Specialties
$9.40Drag Specialties - Paper Oil Filter fits '65-'82 FX/FL, '57-'78 Sportster Models (OEM #53839-59, 63840-53) Features: High-quality drop-in oil filter Fitment 1981-1982 Harley-Davidson Electra Glide Classic FLH - Notes: 1982Fits...$9.40 -
Out of stock
Drag Specialties - Spin-On Drop-In Oil Filter Element fits '36-'84 Big Twin Models (Repl. OEM #63840-48A)
Drag Specialties
$11.50Drag 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...$11.50 -
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
$94.29Drag 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...$94.29 -
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
S&S Cycle - 465 Cam Chain Drive Cam Chest Kit W/ Chrome Pushrod Tubes fits '17-'20 Oil-Cooled M8 Touring Models
S&S Cycle
$1,721.95S&S Cycle - 465 Cam Chain Drive Cam Chest Kit W/ Chrome Pushrod Tubes fits '17-'20 Oil-Cooled M8 Touring Models Features All parts in each kit are matched to ensure superior quality, fit, finish and performance Oil pump and cam plate are...$1,721.95 -
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 - 124" Power Packages fits '17-'21 M8 Oil-Cooled Engines
S&S Cycle
$2,699.95 - $3,359.95S&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 - $3,359.95 -
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
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
Pcracing - PCS4BC - Flo Reusuable Oil Filter Black/Polished Fins
PCRACING
$159.95Pcracing - PCS4BC - Flo Reusuable Oil Filter Black/Polished FinsFeaturesReusable filters made from type 304 stainless steel micronic filter clothFilters down to 35 micronsMaintains consistent flow under all conditions including cold start ups, the...$159.95 -
Out of stock
V-Twin - 37-9181 - Chrome Engine Mount Allen Screw Set
Gardner-Westcott
MSRP: $46.58$45.27V-Twin - 37-9181 - Chrome Engine Mount Allen Screw SetDescriptionChrome engine mount screw set with allen type screws for 4- speed transmissions connects engine mounts, front, top and r ear to frame. Fits:FL 1948-1984Additional Information UOM1 - KIT ...MSRP: $46.58$45.27 -
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
V-Twin - 11-0882 - 95 inch Big Bore Twin Cam Cylinder and Piston Kit
Motorshop
$1,159.33V-Twin - 11-0882 - 95 inch Big Bore Twin Cam Cylinder and Piston KitDescription95" Big Bore kit will increase TC-88 engines to 95". Kit includes black cylinders with 10.5.1 forged pistons.Pistons are pre fitted to cylinders with head gaskets and can be...$1,159.33 -
Out of stock
Drag Specialties - DS246010 - Rocker Oil Line Set - Chrome - Shovelhead
Drag Specialties
$33.87Drag 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...$33.87 -
Out of stock
Drag Specialties - DS243515 - Front ISO-Mount™ Motor Mount - Rubber
Drag Specialties
$28.57Drag 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...$28.57 -
Out of stock
S&S Cycle - 31-6018 - Oil Pump Relief Spring
S&S Cycle
$6.95S&S Cycle - 31-6018 - Oil Pump Relief SpringFeaturesThis premium quality, steel-alloy oil pump pressure relief spring actually increases engine oil pressure by 2-3 psi, and does not interfere with critical bearing lubrication needsSpecsProduct...$6.95 -
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
Andrews - 291127 - Camshaft - EV27 - Evolution Big Twin
Andrews
$251.95Andrews - 291127 - Camshaft - EV27 - Evolution Big TwinFeaturesCapable of 6000+ rpm with stock springs and no valve floatBolt-in street cam with fast open and close rampsUses stock springs; works with carbs or fuel injectionPulls from 1500 to 6000...$251.95 -
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
$10.45 - $12.55Drag 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...$10.45 - $12.55 -
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
S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '92-'99 Harley Models
S&S Cycle
$39.95S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '92-'99 Harley Models Features: Master rebuild kit for S&S oil pump. Made in the U.S.A. Fitment 2000 Harley-Davidson FXR 4 - - 1999 Harley-Davidson Softail...$39.95 -
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
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.