Engine
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Out of stock
Rocker Lockers - Rocker Locker Kit fits '84-'00 Big Twin Evolution Models
Rocker Lockers
$24.95Rocker Lockers - Rocker Locker Kit fits '84-'00 Big Twin Evolution Models Features Centers the rocker plate eliminating different wear patterns on the rocker arm valve Tapered design so that they lock themselves in and wedge the bolt shaft in...$24.95 -
Out of stock
Drag Specialties - Iso-Mount™ Front Motor Mount fits '09-'16 Touring Models (Repl. OEM #16207-09)
Drag Specialties
$65.67Drag Specialties - Iso-Mount™ Front Motor Mount fits '09-'16 Touring Models (Repl. OEM #16207-09) This is a urethane motor mount specifically built to last longer and out-dampen the OEM part. Sold separately...$65.67 -
Out of stock
V-Twin - Pushrod Cover Kit fits '66-'84 Harley Shovelhead
V-Twin Mfg
$152.17V-Twin - Pushrod Cover Kit fits '66-'84 Harley Shovelhead This pushrod cover kit is titanium-plated and features the inner pushrod set, the lower pushrod cover set, a cover spring, a cover spring cup, a cover washer, a gasket and a clip. Fitment FLST...$152.17 -
Out of stock
Revolution Performance - Tap-It-Right Tappet Cover Kits fits '17-'23 M8 Softail Models
Revolution Performance
$575.95Revolution Performance - Tap-It-Right Tappet Cover Kits fits '17-'23 M8 Softail Models With Revolution Performance's Tap-It-Right Tappet Cover Kits, you won't have to worry about the inside bolt on the anti-rotation device breaking off in the case. The...$575.95 -
Out of stock
Drag Specialties - Iso-Mount™ Rear Motor Mount fits '09-'16 Touring Models (Repl. OEM #47584-09)
Drag Specialties
$69.91Drag Specialties - Iso-Mount™ Rear Motor Mount fits '09-'16 Touring Models (Repl. OEM #47584-09) This is a urethane motor mount specifically built to last longer and out-dampen the OEM part. Sold separately...$69.91 -
Out of stock
Feuling - Hydraulic Cam Chain Tensioner Kit - Inner/Outer - Fits '07-'17 Twin Cam & '06 Dyna Models
Feuling
$159.95Feuling - Hydraulic Cam Chain Tensioner Kit - Inner/Outer - Fits '07-'17 Twin Cam & '06 Dyna Models Features Includes both inner & outer tensioners Made in the U.S.A. Fitment 2016-2017 Harley-Davidson Softail Slim S...$159.95 -
Out of stock
Drag Specialties - Lifter Cover Kit fits Harley Twin Cam Models
Drag Specialties
$95.35 - $113.37Drag Specialties - Lifter Cover Kit fits Harley Twin Cam Models This Lifter Cover kit is available in your choice of a black or chrome finish. Fitment 2004-2005 Harley-Davidson Low Rider EFI FXDL 2013 Harley-Davidson CVO Road Glide...$95.35 - $113.37 -
Out of stock
Drag Specialties - Gloss Black Tappet Block Cover fits '17 & Up Harley M8 Models Repl. OEM #25700890
Drag Specialties
$115.49Drag 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...$115.49 -
Out of stock
Drag Specialties - Top Motor Mount - Fits '95-'03 Harley XL Sportster Models
Drag Specialties
$90.05Drag Specialties Top Motor Mounts Top Motor Mount for your Harley Sportster by Drag Specialties. Available in Chrome Features: High-quality, chrome motor mount Bolts not included unless noted Fitment: YearMakeModel 1996 -...$90.05 -
Out of stock
V-Twin - 12-1487 - Oil Pump Check Valve Kit
Motorshop
$32.31V-Twin - 12-1487 - Oil Pump Check Valve KitDescriptionCheck valve kit include ball, spring and cap. Fits:FLT 1981-1998FXD 1991-1999FXR 1982-1994FL 1981-1984FLST 1986-1998FX 1981-1984Additional Information UOM1 - KIT ManufacturerMotorshop OriginUSA ...$32.31 -
Out of stock
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 -
Out of stock
Comp Cams - Velva Ride Motor Mount Stabilizers - Fits Harley FLT and Dyna Models (see fitment)
Comp Cams
$162.95 - $330.95Comp Cams Velva Ride Motor Mount Stabilizers Fits Harley Davidson FLT and Dyna Models Features: Body contains a plunger encased in a specially formulated urethane to absorb vibration Sold each or in pairs Made in the U.S.A...$162.95 - $330.95 -
Out of stock
Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model
Feuling
$399.95Feuling - Red Cylinder Head Breathers fits '18 & Up M8 Harley Model These cylinder head breathers are constructed from billet 6061 aluminum with square surfaces, guaranteeing outstanding umbrella valve sealing and longer main breather exit nipples...$399.95 -
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
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 -
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
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 -
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
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
Custom Cycle Engineering - Front Motor Mount - fits '99-'05 Dyna Models
Custom Cycle Engineering
$559.95Custom Cycle Engineering - Front Motor Mount - fits '99-'05 Dyna Models Custom Cycle Engineering has developed a front motor mount that replaces the stock one on your motorcycle. This product promotes safety with an adjustable stabilizing link that...$559.95 -
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
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 -
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 - 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
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 - 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 -
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
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
V-Twin - 883-1200cc Cylinder and Piston Conversion Kit fits '86-'03 XL - Silver
V-Twin Mfg
$713.81V-Twin's 1200cc XL conversion cylinder and piston set includes 2 silver finished with milled edge fin cylinders. Cylinders have fitted Wiseco moly 9.5:1 reverse dome piston and ring set. Order rocker box gasket set, base/head gaskets separately. Fits: ...$713.81 -
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
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
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.