Engine
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V-Twin - 40-0831 - Oil Line Retainer Set
V-Twin Mfg
$68.21V-Twin - 40-0831 - Oil Line Retainer SetDescriptionOil line retainer set.Set of Five. Fits:FXST 2003-2013Additional Information UOM5 - SET ManufacturerV-Twin OriginImported 2025 Catalog Pages424$68.21 -
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 -
V-Twin - 31-1306 - Engine Mount Shim .036 inch
V-Twin Mfg
MSRP: $41.71$40.88V-Twin - 31-1306 - Engine Mount Shim .036 inch Description Engine mount shim has a thickness of .036". Fits: FXST 1984-1998 FX 1971-1984 EL 1936-1940 FL 1941-1984 Additional Information UOM 5 -...MSRP: $41.71$40.88 -
V-Twin - 16-9724 - Oil Pressure Sender Unit Wrench Tool
Motorshop
$58.48V-Twin - 16-9724 - Oil Pressure Sender Unit Wrench ToolDescriptionReversible ratcheting type wrench has a socket type head for easy removal and installation of oil pressure switch and fits Evolution models. Fits:FXST 1984-1998FXD 1991-1994FXR...$58.48 -
V-Twin - 14-0452 - Knucklehead Valve Guide Seal Set
V-Twin Mfg
$21.63V-Twin - 14-0452 - Knucklehead Valve Guide Seal SetDescriptionValve guide seals for stock guides for Knucklheads.*NOTE: Sold as a set of 4. Fits:EL 1936-1940FL 1941-1947Additional Information UOM1 - SET ManufacturerV-Twin OriginImported 2025 Catalog...$21.63 -
V-Twin - 14-0375 - Valve Guide Seals
V-Twin Mfg
$29.11V-Twin - 14-0375 - Valve Guide SealsDescriptionSifton valve guides seals are metal type with rubber insert for Shovelhead engines. Fits:FLT 1979-1983FXR 1982-1983FL 1981-1984FX 1981-1984Additional Information UOM10 - PK ManufacturerV-Twin ...$29.11 -
V-Twin - 12-1416 - Chrome Oil Line Fitting
Motorshop
$33.32V-Twin - 12-1416 - Chrome Oil Line FittingDescriptionChrome, 90 street elbow oil line fitting has 1/8" NPT male x 1/8 " NPT female thread. Fits:FXST 1984-1998FXR 1982-1994FLT 1979-1998FX 1971-1984FXD 1991-1998FLST 1986-1998FL 1968-1984Additional...$33.32 -
V-Twin - 11-1684 - OE Front Rocker Box Breather Valve
OE
MSRP: $37.91$33.77V-Twin - 11-1684 - OE Front Rocker Box Breather ValveDescriptionOE front breather valve for the rocker box. Fits:XL 2007-UPAdditional Information OEM No.26012-07 UOM1 - EA ManufacturerOE OriginUSA 2025 Catalog Pages857MSRP: $37.91$33.77 -
V-Twin - 11-1408 - M8 Pushrod Cover Kit Gloss Black
Motorshop
$97.53V-Twin - 11-1408 - M8 Pushrod Cover Kit Gloss BlackDescriptionPushrod cover kit for M8 models includes all necessary pieces for complete pushrod cover installation. Features a gloss black finish to highlight the M8 engine.Will work with stock or...$97.53 -
V-Twin - 11-1073 - Pushrod Cover Cup Set Brass
Motorshop
$47.34V-Twin - 11-1073 - Pushrod Cover Cup Set BrassDescriptionPushrod cover spring cup set is machined of solid brass and polished.Set of four. Fits:FXD 1991-2017FX 1971-1984EL 1936-1940FL 1941-1984XL 1957-1989FLST 1986-2017FXST 1984-2017FXR 1984-1994FLT...$47.34 -
V-Twin - 11-0871 - Piston Wrist Pin and Lock Kit
Motorshop
$24.83V-Twin - 11-0871 - Piston Wrist Pin and Lock KitDescriptionWrist pin and lock kit includes two wrist pins and four lock rings. Fits:FXST 1984-1998FLT 1984-1998FXD 1991-1998FXR 1984-1994FLST 1986-1998Additional Information OEM No.22764-83 UOM1 - KIT ...$24.83 -
Trask - TM-017-RK - Assault Cam Cover Repair Kit - Twin Cam
Trask Performance
$39.95Trask - TM-017-RK - Assault Cam Cover Repair Kit - Twin CamFeaturesIncludes everything to repair Trask Assault Series Cam CoversMade in the USACam covers (sold separately).SpecsProduct NameRepair KitColor/FinishRawModelAssaultRiding...$39.95 -
Alloy Art - CRA-1 - Compression Release Adapter - 14 mm x 3/4"
Alloy Art
$20.95Alloy Art - CRA-1 - Compression Release Adapter - 14 mm x 3/4"FeaturesDesigned to be used in twin plug headsAccept .650”/10mm x 1.0 compression release valvesSold eachMade in the U.S.A.SpecsProduct NameAdapterConnector AngleStraightSize14 mm -...$20.95 -
S&S Cycle - 94-1210X - Replacement Piston Rings - 3.625" - Standard
S&S Cycle
$67.95S&S Cycle - 94-1210X - Replacement Piston Rings - 3.625" - StandardFeaturesReplacement ring sets for S&S pistons onlyRings come as sets for two pistonsMade in the USASpecsTypeReplacementUnitsSetRiding StyleStreetPiston Size ImperialStandardBore Size...$67.95 -
Kibblewhite - 71036-4 - Valve Seal
Kibblewhite
$8.16Kibblewhite - 71036-4 - Valve SealFeaturesMade in the U.S.A.Replacement Part for OEM Number(s): 1800081SpecsLength Imperial0.400''Product NameSealUnits4 PackRiding StyleStreetTypeValve GuideStem Diameter Imperial0...$8.16 -
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 -
Eastern Motorcycle Parts - A-8977 - Bearing
Eastern Motorcycle Parts
$41.95Eastern Motorcycle Parts - A-8977 - BearingFeaturesReplacement mainshaft bearing for 5-speed Big TwinsReplacement Part for OEM Number(s): 8977SpecsUnitsEachTypeClosed EndProduct NameBearingRiding StyleStreetFitment1980 Harley-Davidson 1200 Electra Glide...$41.95 -
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 -
Ciro - 70007 - Caps - Rocker Box/Bolt - Peaked - Chrome
Ciro
$39.99Ciro - 70007 - Caps - Rocker Box/Bolt - Peaked - ChromeFeaturesPrecision fit and simple press-on installationCover up old, dull or rusty boltsMade from stamped steelFor Twin Cam engines.SpecsColor/FinishChromeTypeBoltTypeRocker BoxBase ColorSilverProduct...$39.99 -
Cometic - C10127 - Cylinder Base Gasket O-Ring Kit - 110" - Twin Cam
Cometic
$10.95Cometic - C10127 - Cylinder Base Gasket O-Ring Kit - 110" - Twin CamFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleViton® gasket features a stainless...$10.95 -
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 -
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 -
Custom Cycle Engineering - DMM 2014-2 - Rear Motor Mount - Dyna
Custom Cycle Engineering
$646.95Custom Cycle Engineering - DMM 2014-2 - Rear Motor Mount - Dyna Features Motor mount system replaces the inadequate stock mounts Made in the U.S.A. Specs Color/Finish Black Mounting Position Rear Riding...$646.95 -
Alloy Art - NGMP-2 - Front Engine Mount - Black
Alloy Art
$179.95Alloy Art - NGMP-2 - Front Engine Mount - Black Features Lighter and stronger than stock CNC Machined Aluminum construction. Hardware included Made in the USA Replacement Part for OEM Number(s):...$179.95 -
James Gasket - Oil Pump Gasket/Seal Kit with DL-Style Gasket fits '91-'03 Sportster Models
James Gaskets
$21.95James Gasket - Oil Pump Gasket/Seal Kit with DL-Style Gasket fits '91-'03 Sportster Models Features: Comes with new components that allow you to totally rebuild/rebush most oil pumps Made in the...$21.95 -
S&S Cycle - Billet Oil Pump fits '70-'91 Big Twin Models
S&S Cycle
MSRP: $499.95$445.95S&S Cycle - Billet Oil Pump fits '70-'91 Big Twin Models Features: Kit includes an oil pump with cover, mounting bolts, supply and return gears, drive shaft with keys and snap rings, check ball and spring, pressure relief valve and spring, check...MSRP: $499.95$445.95 -
Colony - 9634-4 Chrome Oil Pump Check and Relief Valve Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models
Colony Machine
MSRP: $28.64$26.77Colony - 9634-4 Chrome Oil Pump Check and Relief Valve Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models Oil pump check and relief valve plug with a chrome finish. Fitment: FLT 1981-1998 FXST 1984-1998 FXR 1982-1994 FXD 1991-1998 FL...MSRP: $28.64$26.77 -
V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models
V-Twin Mfg
$27.12V-Twin - Intake Manifold Seal Kit fits '90-'17 FLST/FXST, '88-'06 Sportster Models Manifold seal kit is to reseal late model manifolds with CV carburetor Fitment: FLST 1990-2017 FXD 1991-2017 FXST 1990-2017 XL 1988-2006 FLT 1990-UP$27.12 -
Wyatt Gatling - Shovelhead Chrome Rocker Box Line Kit fits '79-'83 FLT, '66-'84 FL, '82-'83 FXR Models
Wyatt Gatling
$67.58Wyatt Gatling - Shovelhead Chrome Rocker Box Line Kit fits '79-'83 FLT, '66-'84 FL, '82-'83 FXR Models Natural brass rocker box line kit includes "T" to oil the heads with 6mm brass tube and brass fittings. Tubes feature a chrome finish over the brass...$67.58 -
Colony - Hydraulic Pushrods fits '66-'84 Shovelhead w/ Hydraulic Lifters (OEM #17904-66)
Colony Machine
$74.95Colony - Hydraulic Pushrods fits '66-'84 Shovelhead w/ Hydraulic Lifters (OEM #17904-66) Features: Aircraft-grade aluminum tubing Heat-treated steel tips Fits stock stroke lengths Made in the U.S.A...$74.95 -
Colony - Cylinder Base Spacer Kit fits '78-'84 Big Twin Models (OEM #16836-78)
Colony Machine
$24.95Colony - Cylinder Base Spacer Kit fits '78-'84 Big Twin Models (OEM #16836-78) Features: Individual chrome bolt and nut sets for specific applications Made in the U.S.A. Fitment 1984 Harley-Davidson Electra Glide Special...$24.95 -
Feuling - Inner Cam Bearing fits '17-'22 M8 Model (Repl. OEM # 9215)
Feuling
$19.95Feuling - Inner Cam Bearing fits '17-'22 M8 Model (Repl. OEM # 9215) Feuling's bearings are heay-duty full-component style, built to accept the higher loads and demands of performance engines. Features Manufactured by Koyo Torrington Made in the U...$19.95 -
Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors
Feuling
$99.95Feuling - Dress Up Engine Case Bolt Fastener Kit fits '99-'17 Twin Cam A Motors This kit features precision-rolled threads for the utmost engagement in order to stop galling and deliver better regular torque loading. The wide underhead flange design...$99.95 -
Feuling - Rocker Shaft Kit fits '17-'22 M8 Touring & '18-'22 Softail Models
Feuling
$329.95Feuling - Rocker Shaft Kit fits '17-'22 M8 Touring & '18-'22 Softail Models Fueling's Rocker Shaft Kits feature custom tooling that's built to deliver a countersink relief for the bolt/nut head as opposed to machining away the entire end of the...$329.95 -
Feuling - 12-Point External Engine Fastener Kit fits '17-'22 Touring Models
Feuling
$399.95Feuling - 12-Point External Engine Fastener Kit fits '17-'22 Touring Models This kit comes with a cam cover, lifter block covers, rocker covers, case bolts, oil lines, a volt regulator, exhaust studs and locking nuts. The tensile strength of this...$399.95 -
Performance Machine - Black Ops Race Series Cam Cover '17-'23 Harley M8 Models
Performance Machine
$362.95Performance Machine - Black Ops Race Series Cam Cover '17-'23 Harley M8 Models Features: CNC machined from billet aluminium Dissipates heat more efficiently vs. stock covers Provides a race-inspired look Chrome hardware and gasket...$362.95 -
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 -
S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads)
S&S Cycle
$1,489.95S&S Cycle - 96" Big Bore Kit fits '84-'00 Evolution Big Twin Engines (3⅝" Bore, 4⅝" Stroke, 9.75:1 Compression Ratio W/ Stock Heads) The cylinders featured in this kit are built with premium aluminum castings with cast-in iron liners. This kit also...$1,489.95 -
Dynojet - Radiator Guard fits '21-Up Pan America Model
Dynojet
$177.77Dynojet - Radiator Guard fits '21-Up Pan America Model Features: Comes with mounting brackets and hardware Made in the U.S.A. Easy installation Fitment 2021-2023 Harley-Davidson Pan America 1250...$177.77 -
S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '78-'91 Harley Big Twin
S&S Cycle
$31.95S&S Cycle - Master Rebuild Kit For S&S Oil Pump - fits '78-'91 Harley Big Twin Features: Master rebuild kit for S&S oil pump. Made in the U.S.A. Fitment 1991 Harley-Davidson Dyna Sturgis...$31.95
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.