Engine
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Feuling - 12-Point External Primary Engine Bolt Fastener Kit fits '04-'20 Sportster Models
Feuling
$139.95Feuling - 12-Point External Primary Engine Bolt Fastener Kit fits '04-'20 Sportster Models The 12-Point External Primary Engine Bolt Fastener Kit allows you to secure your engine with complete confidence. This kit includes a primary cover, a clutch cover...$139.95 -
Colony Machine - Motor Mount Bolt Covers fits '00-'17 Softail Models
Colony Machine
$28.95Colony Machine - Motor Mount Bolt Covers fits '00-'17 Softail Models The Colony Machine Motor Mount Bolt Covers have a smooth finish and are 100% manufactured in the U.S.A. Colony Machine is one of the best-known brands for the DIY bikers, specializing...$28.95 -
Roland Sands Design Clarity Cam Cover - fits '17-'19 M-Eight
Roland Sands Design
$494.95Roland Sands Design Clarity Cam Cover - fits '17-'19 M-Eight Features: Allows for viewing of the internal moving engine components CNC-machined from billet aluminum Hardware included Contrast Cut™ finish starts with a polished top cover that...$494.95 -
Custom Cycle Engineering - EVO Finned Rocker Covers fits '84-'99 Evolution Big Twin Models
Custom Cycle Engineering
$475.95Custom Cycle Engineering - EVO Finned Rocker Covers fits '84-'99 Evolution Big Twin Models Custom Cycle Engineering's EVO Finned Rocker Covers have undersides that have been machined for greater clearance. This will allow them to accommodate almost any...$475.95 -
On Sale
S&S - Gear Drive Camshaft - Fits Harley '17-Up M8 Models with M8 Engine
S&S Cycle
$413.06 - $419.36S&S - Gear Drive Camshaft - Fits Harley '17-Up M8 Models with M8 Engine This replacement camshaft kit includes all required bearings, o-rings, gasket, and hardware. Features: 350 CAMS No Tuning Required Bolt-in! Compatible with all stock...$413.06 - $419.36 -
Feuling - Dress Up Fastener Kit - fits '18 Softail
Feuling
$199.95Feuling Dress Up Fastener Kit for 2018 Harley Softail This Chassis Dress-up Kit includes rear fender bracket, battery box side cover, shifter linkage, shifter arm w/nut and washer, and rear brake master cylinder hardware. Features: Quality 12-point...$199.95 -
On Sale
S&S - 585CEZ Easy Start Chain-Drive Camchest Kit - fits '07-'17 Twin Cam, '06 Dyna
S&S Cycle
MSRP: $2,529.95Now: $2,276.96Was: $2,529.95S&S - 585CEZ Easy Start Chain-Drive Camchest Kit for Harley Twin Cam and Dynas The 585CEZ Easy Start Chain-Drive Camchest Kit by S&S will improve engine performance and upgrade your motorcycle. Features: Upgrade to S&S bolt-in...MSRP: $2,529.95Now: $2,276.96Was: $2,529.95 -
EMD - XR Trackster Rocker Box Covers -Black fits '04-'17 XL Models
EMD
$582.95The XR Trackster Rocker Box Covers Make that Evolution Sportster look like a XR750 flat track racer Manufactured in die cast aluminum with CNC milled gasket surface Mounts in place of stock rocker box cover using stock hardware and gaskets; not...$582.95 -
EMD - XR Trackster Rocker Box Covers -Black fits '86-'03 XL Models
EMD
$582.99The XR Trackster Rocker Box Covers Make that Evolution Sportster look like a XR750 flat track racer Manufactured in die cast aluminum with CNC milled gasket surface Mounts in place of stock rocker box cover using stock hardware and gaskets; not included...$582.99 -
James Gaskets - Evo Motor Gasket Kit w/ MLS Head Gaskets - fits '84-'91 Evo
James Gaskets
$164.95James Gaskets Evo Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '84-'91 Evo$164.95 -
James Gaskets - Gasket O-Ring Kit, Cylinder Head-Base - fits '99-Up Twin Cams
James Gaskets
$78.95James Gaskets - Gasket O-Ring Kit, Cylinder Head-Base - fits '99-Up Twin Cams This Genuine James kit comes with matching head and base gaskets and O-Rings where applicable. Made in the U.S.A. Fitment 2006 Harley-Davidson Street Glide...$78.95 -
James Gaskets - Twin Cam Motor Gasket Kit w/ MLS Head Gaskets - fits '99-'04
James Gaskets
$163.95James 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$163.95 -
James Gaskets - Twin Cam Motor Gasket Kit w/ MLS Head Gaskets - fits '05-Up
James Gaskets
$163.95James 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: '05-UP Twin Cam Models$163.95 -
On Sale
Feuling - Oil Pumps - fits '07-'15 Twin Cam (inc. '06 Dyna)
Feuling
MSRP: $507.95Now: $499.99Was: $507.95Fueling Oil Pumps : 7075 billet aluminum with military spec hard anodized, blue printed and designed for the racer The 7075 alloy is 50% harder and stronger then 6061 aluminum and holds tighter tolerance under temperature More pressure volume and...MSRP: $507.95Now: $499.99Was: $507.95 -
Colony - 8138-34 Cadmium Stock Engine Case Bolt Kit fits '65-'69 FL Model
Colony Machine
$59.60Colony - 8138-34 Cadmium Stock Engine Case Bolt Kit fits '65-'69 FL Model Engine case kit includes all the necessary hardware to bolt together engine cases. Fitment: FL 1965-1969$59.60 -
Colony - 8107-16 Cadmium Cylinder Base Nuts and Washers fits '29-'52 WL, '57-'85 XL, '32-'73 G Models
Colony Machine
$23.67Colony - 8107-16 Cadmium Cylinder Base Nuts and Washers fits '29-'52 WL, '57-'85 XL, '32-'73 G Models Cadmium stock cylinder base set includes 8 nuts & washers. Fitment: WL 1929-1952 XL 1957-1985 G 1932-1973$23.67 -
On Sale
Colony - Cylinder Stud Set - fits '86-Up XL
Colony Machine
MSRP: $88.95Now: $81.99Was: $88.95Colony cylinder stud set. 8pack Fits: XL 1986-UP EvolutionMSRP: $88.95Now: $81.99Was: $88.95 -
On Sale
Colony - Tappet Base Allen Screws - Chrome fits '57-'84 XL
Colony Machine
MSRP: $16.98Now: $14.99Was: $16.98Tappet base allen screws. Chrome finish Fits: XL 1957-1984MSRP: $16.98Now: $14.99Was: $16.98 -
Colony - Rocker Shaft End Caps - Chrome fits Harley FL, FX, and XL (see desc.)
Colony Machine
$41.99Rocker shaft end caps, chrome finish. Fits: FL 1971-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1971-1985$41.99 -
V-Twin - Chrome Pushrod Cover Kit fits '57-E'79 XL Sportster
V-Twin Manufacturing
$102.06Chrome Pushrod Cover kit includes upper and lower pushrod covers, seals, springs. Fits: XL 1957-1979 Early 1979$102.06 -
On Sale
Colony - Hex Head Bolts - Chrome fits '57-'72 XL
Colony Machine
MSRP: $69.95Now: $64.99Was: $69.95Hex head bolt, chrome finish. Fits: XL 1957-1972MSRP: $69.95Now: $64.99Was: $69.95 -
V-Twin - Blacked Out Rocker Box Cover Set fits '07-'12 XL Sportster
V-Twin Manufacturing
$420.54Harley Sportster Rocker box cover set with black finish. Fits: XL 2007-2012$420.54 -
Ultracool - RF-156K - Oil Cooler Cover - Regulator Mount
Ultracool
$39.95Ultracool - RF-156K - Oil Cooler Cover - Regulator MountFeaturesHides and protects the heat exchanger and fansCold weather covers recommended below 60 FUltracool = Side Mount Cold Weather Cover SM-156KUltracool - Below Regulator Mount Cold Weather Cover...$39.95 -
Ultracool - SM-156K - Oil Cooler Cover - Side Bar Mount
Ultracool
$39.95Ultracool - SM-156K - Oil Cooler Cover - Side Bar MountFeaturesHides and protects the heat exchanger and fansCold weather covers recommended below 60 FUltracool = Side Mount Cold Weather Cover SM-156KUltracool - Below Regulator Mount Cold Weather Cover...$39.95 -
Ultracool - ST-25K - Oil Cooler Cover - Softail - Center Mount
Ultracool
$39.95Ultracool - ST-25K - Oil Cooler Cover - Softail - Center MountFeaturesHides and protects the heat exchanger and fansCold weather covers recommended below 60 FUltracool = Side Mount Cold Weather Cover SM-156KUltracool - Below Regulator Mount Cold Weather...$39.95 -
S&S Cycle - 310-1050B - 124" Power Package - Chain Drive - Highlighted Fins - Chrome Pushrod Tubes - 107" M8
S&S Cycle
$3,265.95S&S Cycle - 310-1050B - 124" Power Package - Chain Drive - Highlighted Fins - Chrome Pushrod Tubes - 107" M8FeaturesMade in the U.S.A.Big Bore Kit107" to 124" Big bore kitBolt on kit.No case machining requiredForged pistons11.1 Compression ratioOil...$3,265.95 -
S&S Cycle - 310-1054B - 124" Power Package - Chain Drive - Highlighted Fins - Black Pushrod Tubes - 107" M8
S&S Cycle
$3,265.95S&S Cycle - 310-1054B - 124" Power Package - Chain Drive - Highlighted Fins - Black Pushrod Tubes - 107" M8FeaturesMade in the U.S.A.Big Bore Kit107" to 124" Big bore kitBolt on kit.No case machining requiredForged pistons11.1 Compression ratioOil...$3,265.95 -
Feuling Parts - 3082 - Replacement Filter Element - Oil Tank
FEULING PARTS
$29.95Feuling Parts - 3082 - Replacement Filter Element - Oil Tank Features Replacement breather filter element Made in the USA Specs Units Each Base Color Silver Filter Media Material Cotton Gauze Filter...$29.95 -
Jagg Oil Coolers - TS180 - Miniature Thermal Switch - 180° F Preset
Jagg Oil Coolers
$27.95Jagg Oil Coolers - TS180 - Miniature Thermal Switch - 180 F PresetFeaturesSwitch on any 12V-powered accessory at the preset temperatureThermal switch is naturally open (off) to switch on 12V-powered accessory at preset temperatureSimple brass prongs...$27.95 -
Jagg Oil Coolers - TS190 - Miniature Thermal Switch - 190° F Preset
Jagg Oil Coolers
$27.95Jagg Oil Coolers - TS190 - Miniature Thermal Switch - 190 F PresetFeaturesSwitch on any 12V-powered accessory at the preset temperatureThermal switch is naturally open (off) to switch on 12V-powered accessory at preset temperatureSimple brass prongs...$27.95 -
Jagg Oil Coolers - AK4700-T - Thermostat Service Kit
Jagg Oil Coolers
$37.95Jagg Oil Coolers - AK4700-T - Thermostat Service KitFeaturesMade in the USASpecsProduct NameService KitRiding StyleStreetBase ColorSilverColor/FinishGoldBase ColorGoldColor/FinishBlackColor/FinishSilverTypeThermostatUnitsKit$37.95 -
Jagg Oil Coolers - 3120 - Universal Oil Cooler - 10-Row - Gloss Black
Jagg Oil Coolers
$239.95Jagg Oil Coolers - 3120 - Universal Oil Cooler - 10-Row - Gloss BlackFeaturesSame oil coolers that are used in high-quality Jagg oil cooler systemsPerfect for the customizer, the fabricator, and the racerFully-Brazed constructionMade in the USAMounting...$239.95 -
Jagg Oil Coolers - 3080 - Universal Oil Cooler - 14-Row - Gloss Black
Jagg Oil Coolers
$274.95Jagg Oil Coolers - 3080 - Universal Oil Cooler - 14-Row - Gloss BlackFeaturesSame oil coolers that are used in high-quality Jagg oil cooler systemsPerfect for the customizer, the fabricator, and the racerFully-Brazed constructionMade in the USAMounting...$274.95 -
Jagg Oil Coolers - 3050 - Universal Oil Cooler - 6-Row - Gloss Black
Jagg Oil Coolers
$184.95Jagg Oil Coolers - 3050 - Universal Oil Cooler - 6-Row - Gloss BlackFeaturesSame oil coolers that are used in high-quality Jagg oil cooler systemsPerfect for the customizer, the fabricator, and the racerFully-Brazed constructionMade in the USAMounting...$184.95 -
Belt Drives Ltd. - MPB-9 - Motor Plate Bearing
Belt Drives Ltd.
$88.95Belt Drives Ltd. - MPB-9 - Motor Plate Bearing Features For use on BDL Belt Drive clutches Specs Riding Style Street Units Each Product Name Bearing$88.95 -
Alloy Art - CRA-3 - Compression Release Adapter - 12 mm x 3/4"
Alloy Art
$20.95Alloy Art - CRA-3 - Compression Release Adapter - 12 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.SpecsUnitsEachProduct NameAdapterTypeCompression ReleaseConnector...$20.95 -
Alloy Art - CRA-2 - Compression Release Adapter - 14 mm x 3/8"
Alloy Art
$20.95Alloy Art - CRA-2 - Compression Release Adapter - 14 mm x 3/8"FeaturesDesigned to be used in twin plug headsAccept .650”/10mm x 1.0 compression release valvesSold eachMade in the U.S.A.SpecsSize14 mm - 3/8''Riding StyleStreetTypeCompression...$20.95 -
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 -
Wossner - K4082D200-2 - Piston Kit - 4.500" Stroke - 114 CID - M8 CVO
Wossner
$448.00Wossner - K4082D200-2 - Piston Kit - 4.500" Stroke - 114 CID - M8 CVO Features Crown is anodized to improve resistance to extreme heat Tested and proven to improve thermal diffusivity by up to 10% Hardcoat anodize treatment enhances the piston's...$448.00 -
Tp Engineering - 45-0151-12 - Oil Pump Big Twin
Tp Engineering
$524.95Tp Engineering - 45-0151-12 - Oil Pump Big TwinFeaturesConstructed of high-quality billet aluminum with a polished finishUnique three-valve system delivers 8-10 lb. of oil pressure to the crankshaft at idle (all other oil pumps have a pressure valve that...$524.95
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.