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Engine

8284 parts

Harley engine parts for Evo, Twin Cam, Milwaukee-Eight and Sportster motors. Jump to cams, big bore kits, heads, gaskets and seals or engine covers. Free US shipping over $100.

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  • Drag Specialties - Cam Cover fits M8 Softail Models

    Drag Specialties - Cam Cover fits M8 Softail Models

    Drag Specialties

    $153.65
    Drag Specialties - Cam Cover fits M8 Softail Models  The Drag Specialties Cam Cover for M8 Softail models accept OEM gasket and mounting hardware. Available in Black or Chrome Fitment
    $153.65
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  • S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines

    S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines

    S&S Cycle

    $3,396.95
    S&S Cycle - 110" Power Package fits '07-'17 Twin Cam Engines S&S Cycle has created the largest big-bore kits available today, without doing crankcase mods! This kit increases displacement to 110"...
    $3,396.95
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  • Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Factory Retainers Fits Harley '17-Up M8 Model Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Factory Retainers Fits Harley '17-Up M8 Model

    Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Factory Retainers Fits Harley '17-Up M8 Model

    $419.95
    Feuling - Endurance Beehive® Standard 6mm Valve Stem Valve Springs with Factory Retainers Fits Harley '17-Up M8 Model Features Made from premium stress-relieved conical ovate wire Feature...
    $419.95
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  • Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models

    Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models

    $279.95
    Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models The 12-Point Primary/Transmission Engine Fastener Kit allows you to secure your engine with complete...
    $279.95
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  • Feuling - 12-Point External Engine Bolt Fastener Kit fits '99-'17 Twin Cam A/B Motors Feuling - 12-Point External Engine Bolt Fastener Kit fits '99-'17 Twin Cam A/B Motors

    Feuling - 12-Point External Engine Bolt Fastener Kit fits '99-'17 Twin Cam A/B Motors

    $339.95
    Feuling - 12-Point External Engine Bolt Fastener Kit fits '99-'17 Twin Cam A/B Motors The 12-Point External Engine Bolt Fastener Kit allows you to secure your engine with complete confidence. The...
    $339.95
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  • Custom Cycle Engineering - EVO Finned Rocker Covers fits '84-'99 Evolution Big Twin Models

    Custom Cycle Engineering - EVO Finned Rocker Covers fits '84-'99 Evolution Big Twin Models

    Custom Cycle Engineering

    $475.95
    Custom 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...
    $475.95
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  • Feuling M Eight Engine Stand

    Feuling M Eight Engine Stand

    $169.95
    Feuling M Eight Engine Stand Stand for Milwaukee Eight engines. For the following models: Fitment YearMakeModel
    $169.95
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  • Out of stock
    S&S Big Bore Kit for M8 Harley Softail & Touring '17-Up

    S&S Cycle - Big Bore Kit for M8 Harley Softail & Touring '17-Up

    S&S Cycle

    $929.95
    S&S Big Bore Kit for M8 Harley Softail & Touring '17-Up This S&S Big Bore Kit is for Milwaukee-Eight Harley Softail and Touring models 2017 and up, including Softail Heritage Classic and Breakout...
    $929.95
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  • Drag Specialties - Chrome Rocker Box Kit - Fits '04-'06 XL Sportster Models

    Drag Specialties - Chrome Rocker Box Kit - Fits '04-'06 XL Sportster Models

    Drag Specialties

    $331.73
    Drag Specialties Chrome Rocker Box Kit Fits '04-'06 XL Sportster Models Features: Quality construction with exact dimensions ensures a perfect, leakproof fit Available in chrome or with a satin...
    $331.73
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  • Drag Specialties - Rear Isolator Mount Kit - Fits '14-'18 Harley XL Sportster Models

    Drag Specialties - Rear Isolator Mount Kit - Fits '14-'18 Harley XL Sportster Models

    Drag Specialties

    $213.01
    Drag Specialties Front Isolator Mount Kits Fits '14-'18 Harley Davidson XL Sportster Models Features: Kit includes all parts needed to replace rear isolator mounts Rear kits PART #0933-0119 include...
    $213.01
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  • Trask - Mystfree Kit - fits Harley Models (See Desc.)

    Trask - Mystfree Kit - fits Harley Models (See Desc.)

    Trask Performance

    $249.95
    Trask Mystfree Kit The Trask Mystfree kit is made from durable billet aluminum. This product is designed to drain oil into the rocker more efficiently. If you're looking to reduce oil misting from...
    $249.95
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  • James Gaskets - Cam Quick Change Gasket Seal Kit - fits '93-'99 Evo

    James Gaskets - Cam Quick Change Gasket Seal Kit - fits '93-'99 Evo

    James Gaskets

    $34.95
    James Gaskets Evo Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '93-'99 Evo
    $34.95
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  • James Gaskets - Twin Cam Top End Gasket Kit w/ MLS Head Gaskets - fits '99-'04

    James Gaskets - Twin Cam Top End Gasket Kit w/ MLS Head Gaskets - fits '99-'04

    James Gaskets

    $144.95
    James 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
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  • On Sale
    Fueling - Head Bolt Kit - fits '92-'10 Sportsters, '85-'15 Big Twins

    Fueling - Head Bolt Kit - fits '92-'10 Sportsters, '85-'15 Big Twins

    MSRP: $299.95
    Now: $239.99
    Was: $299.95
    The Fueling Head Bolt Kit are the strongest bolts available. Secure your engine with complete confidence. Superior in strength and performance, exceeds the needs of high performance engines...
    MSRP: $299.95
    Now: $239.99
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    MSRP: $299.95
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  • V-Twin - Left Crankcase Main Bearing Set fits '77-'03 XL Sportster

    V-Twin - Left Crankcase Main Bearing Set fits '77-'03 XL Sportster

    V-Twin Mfg

    $113.15
    Timken left crankcase main bearing set is factory assembled with correct spacer for proper end play. Sold as a pair. Fits: XL 1977-2003 OEM No: 24729-74
    $113.15
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  • On Sale
    Colony - Acorn Cam Cover Screw Set fits Harley FL, FX (see desc.) - Chrome

    Colony - Acorn Cam Cover Screw Set fits Harley FL, FX (see desc.) - Chrome

    Colony Machine

    Now: $27.99
    Was: $32.46
    Acorn cam cover screw Fits:FL 1970-1984FX 1971-1984FLT 1979-1992FXR 1982-1992FXST 1984-1992FLST 1986-1992FXD 1991-1992
    Now: $27.99
    Was: $32.46
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  • V-Twin - 31-1275 - Chrome Top Motor Mount - Fits 1948-1985 Harley-Davidson FL, 1971-1999 FX V-Twin - 31-1275 - Chrome Top Motor Mount - Fits 1948-1985 Harley-Davidson FL, 1971-1999 FX

    V-Twin - 31-1275 - Chrome Top Motor Mount - Fits 1948-1985 Harley-Davidson FL, 1971-1999 FX

    V-Twin Mfg

    $106.74
    Billet top motor mount with holes has a chrome finish.For Panhead, Shovelhead and Evolution engines. The two holes are drilled and tapped 5/16-18UNC with a center distance of 2". Fits:FL 1948-1985FX...
    $106.74
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  • V-Twin - 15-1316 - Cometic Cam Cover Gasket V-Twin - 15-1316 - Cometic Cam Cover Gasket

    V-Twin - 15-1316 - Cometic Cam Cover Gasket

    Cometic

    MSRP: $17.92
    $17.73
    V-Twin - 15-1316 - Cometic Cam Cover GasketDescriptionCometic AFM cam cover gasket.*NOTE: AFM denotes foam surface that is bonded to aluminum. Fits:FLT 1999-2016FLST 1999-2017FXST 1999-2017FXD...
    MSRP: $17.92
    $17.73
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    $17.73
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  • V-Twin - 15-0640 - V-Twin Rocker Box Gasket with Bead V-Twin - 15-0640 - V-Twin Rocker Box Gasket with Bead

    V-Twin - 15-0640 - V-Twin Rocker Box Gasket with Bead

    Gary Bang

    $32.31
    V-Twin - 15-0640 - V-Twin Rocker Box Gasket with BeadDescriptionRocker box gasket beaded Fits:XL 1957-1985Additional Information
    $32.31
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  • V-Twin - 12-1510 - Cam Chest Breather Valve Washer Set V-Twin - 12-1510 - Cam Chest Breather Valve Washer Set

    V-Twin - 12-1510 - Cam Chest Breather Valve Washer Set

    Motorshop

    $32.31
    V-Twin - 12-1510 - Cam Chest Breather Valve Washer SetDescriptionCam chest breather valve washer set includes 8 sizes: .110, .115, .120, .125, .130, .135, .140, .145. Washer set is made of steel and...
    $32.31
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  • V-Twin - 12-1441 - Cam Bearing Washer .055 Size V-Twin - 12-1441 - Cam Bearing Washer .055 Size

    V-Twin - 12-1441 - Cam Bearing Washer .055 Size

    Eastern Motorcycle Parts

    $31.67
    V-Twin - 12-1441 - Cam Bearing Washer .055 SizeDescriptionCam bearing washer .055 size. Fits:FXST 1984-1998FXR 1982-1994FLT 1979-1998EL 1936-1940FL 1941-1984FXD 1991-1998FLST 1986-1998Additional...
    $31.67
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  • V-Twin - 11-0028 - Hydraulic Pushrod Tappet Set V-Twin - 11-0028 - Hydraulic Pushrod Tappet Set

    V-Twin - 11-0028 - Hydraulic Pushrod Tappet Set

    Sonnax

    $216.16
    V-Twin - 11-0028 - Hydraulic Pushrod Tappet SetDescriptionSifton hydraulic pushrod tappet set includes 4 max axle lifters with integral pump and 4 adjustable steel pushrods. Fits:FLT 1979-1983FX...
    $216.16
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    $216.16
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  • V-Twin - 10-0580 - Standard Hydraulic Tappet Assembly V-Twin - 10-0580 - Standard Hydraulic Tappet Assembly

    V-Twin - 10-0580 - Standard Hydraulic Tappet Assembly

    Sifton

    $183.49
    V-Twin - 10-0580 - Standard Hydraulic Tappet AssemblyDescriptionSifton maxi-axle tappet features built in integral pump unit to set as a full hydraulic unit.The larger diameter rollers in these...
    $183.49
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  • V-Twin - 10-0197 - Idler Gear Stud Kit V-Twin - 10-0197 - Idler Gear Stud Kit

    V-Twin - 10-0197 - Idler Gear Stud Kit

    Motorshop

    $29.79
    V-Twin - 10-0197 - Idler Gear Stud KitDescriptionKit includes cam chest idler gear stud with two bushings, and two fiber red washers. Fits:XL 1957-1985Additional Information
    $29.79
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  • V-Twin - 7410-55T - Engine Case Sprocket Shaft Retainer and Seal - Fits 1955-1968 Harley-Davidson FL V-Twin - 7410-55T - Engine Case Sprocket Shaft Retainer and Seal - Fits 1955-1968 Harley-Davidson FL

    V-Twin - 7410-55T - Engine Case Sprocket Shaft Retainer and Seal - Fits 1955-1968 Harley-Davidson FL

    V-Twin Mfg

    $26.05
    Retainer and seal kit for the sprocket shaft Fits:FL 1955-1968Additional Information UOM1 - EA Manufacturer
    $26.05
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  • Drag Specialties - 21100322 - Mini Crankcase Vent Filter Drag Specialties - 21100322 - Mini Crankcase Vent Filter

    Drag Specialties - 21100322 - Mini Crankcase Vent Filter

    Drag Specialties

    MSRP: $20.75
    $19.95
    Drag Specialties - 21100322 - Mini Crankcase Vent FilterFeaturesHas a 1/4" mounting tab and accepts a 3/8" i.d. hoseFeatures chrome end caps with washable, reusable filterMeasures 1.5" in diameter...
    MSRP: $20.75
    $19.95
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    MSRP: $20.75
    $19.95
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  • Pc Racing - PCS1BC - Flo® "Spin-On" Oil Filter - Black with Cooling Fins Pc Racing - PCS1BC - Flo® "Spin-On" Oil Filter - Black with Cooling Fins

    Pc Racing - PCS1BC - Flo® "Spin-On" Oil Filter - Black with Cooling Fins

    PC Racing

    $159.95
    Pc Racing - PCS1BC - Flo® "Spin-On" Oil Filter - Black with Cooling FinsFeaturesFlows 7 times more than paper or synthetic filters while filtering to 35 microns (absolute, 1 pass test)Bypass valve...
    $159.95
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  • Wiseco - K1686 - Piston Kit - +0.010" - XL 1200

    Wiseco - K1686 - Piston Kit - +0.010" - XL 1200

    Wiseco

    $447.95
    Wiseco - K1686 - Piston Kit - +0.010" - XL 1200FeaturesForged from high-silicon aluminum alloy for maximum strength and dependabilityKit Includes pistons, rings, retainer clips and chrome piston...
    $447.95
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    $447.95
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  • Kb Performance - KB295.010 - Piston Kit - 3.498" +0.010" - 9.0:1 CR - XL1200 Kb Performance - KB295.010 - Piston Kit - 3.498" +0.010" - 9.0:1 CR - XL1200

    Kb Performance - KB295.010 - Piston Kit - 3.498" +0.010" - 9.0:1 CR - XL1200

    KB Performance

    $227.95
    Kb Performance - KB295.010 - Piston Kit - 3.498" +0.010" - 9.0:1 CR - XL1200FeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloyAllows a tighter fit and longer...
    $227.95
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    $227.95
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  • Kibblewhite - 20-23100 - Valve Kit - 1.805" Intake/1.575" Exhaust - 88"/96"/103" Twin Cam '05-'17 Kibblewhite - 20-23100 - Valve Kit - 1.805" Intake/1.575" Exhaust - 88"/96"/103" Twin Cam '05-'17

    Kibblewhite - 20-23100 - Valve Kit - 1.805" Intake/1.575" Exhaust - 88"/96"/103" Twin Cam '05-'17

    Kibblewhite

    $142.70
    Kibblewhite - 20-23100 - Valve Kit - 1.805" Intake/1.575" Exhaust - 88"/96"/103" Twin Cam '05-'17FeaturesAll valves are fortified by a special process to a depth of .002” with a surface buildup of ...
    $142.70
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    $142.70
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  • Hastings - 2M4942 - Piston Rings - 3.750" Standard - 88" Twin Cam

    Hastings - 2M4942 - Piston Rings - 3.750" Standard - 88" Twin Cam

    Hastings

    $102.95
    Hastings - 2M4942 - Piston Rings - 3.750" Standard - 88" Twin CamFeaturesIncludes top compression rings, second compression rings, and oil control ringsTop Compression Rings are Barrel FaceHelps in...
    $102.95
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    $102.95
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  • Jims - 24331-36 - Wrist Pin Bushing - XL

    Jims - 24331-36 - Wrist Pin Bushing - XL

    Jims

    MSRP: $51.95
    $51.45
    Jims - 24331-36 - Wrist Pin Bushing - XL Features Machined from solid bronze bar stock Hold concentricity to less than .0002" Lead-in edge for easy installation Made in the U.S.A. Specs
    MSRP: $51.95
    $51.45
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    MSRP: $51.95
    $51.45
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  • Feuling Parts - 4061 - Lifters - HP+® - Evolution

    Feuling Parts - 4061 - Lifters - HP+® - Evolution

    Feuling

    $289.95
    Feuling Parts - 4061 - Lifters - HP+® - EvolutionFeaturesPerformance hydraulic roller lifters dyno developed and track testedCNC-machined and precision groundWhen used with Feuling® oil pump, they...
    $289.95
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    $289.95
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  • Feuling Parts - 8060 - Inner Roll Chain - 16 Link - Twin Cam

    Feuling Parts - 8060 - Inner Roll Chain - 16 Link - Twin Cam

    Feuling

    $42.95
    Feuling Parts - 8060 - Inner Roll Chain - 16 Link - Twin CamFeaturesStock replacement chainsFeuling Racing & DevelopmentReplacement Part for OEM Number(s): 2568306Fitment notes:Will also fit '99-'06...
    $42.95
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    $42.95
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  • Feuling Parts - 1001 - Camshaft - Chain Drive - 525 Series - Twin Cam

    Feuling Parts - 1001 - Camshaft - Chain Drive - 525 Series - Twin Cam

    Feuling

    $399.95
    Feuling Parts - 1001 - Camshaft - Chain Drive - 525 Series - Twin CamFeaturesDesigned to increase torque band width and increase fuel economyGreat bolt-in camshaft upgrade for stock 88" and 96"...
    $399.95
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  • Feuling Parts - 8061 - Outer Roller Chain - 22 Link - M8 | Twin Cam

    Feuling Parts - 8061 - Outer Roller Chain - 22 Link - M8 | Twin Cam

    Feuling

    $42.95
    Feuling Parts - 8061 - Outer Roller Chain - 22 Link - M8 | Twin CamFeaturesStock replacement chainsFeuling Racing & DevelopmentReplacement Part for OEM Number(s): 2567506Fitment notes:Also fits...
    $42.95
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    $42.95
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  • Feuling Parts - 1006 - Camshaft - Chain Drive - 525 Series - Twin Cam

    Feuling Parts - 1006 - Camshaft - Chain Drive - 525 Series - Twin Cam

    Feuling

    $399.95
    Feuling Parts - 1006 - Camshaft - Chain Drive - 525 Series - Twin CamFeaturesDesigned to increase torque band width and increase fuel economyGreat bolt-in camshaft upgrade for stock 88" and 96"...
    $399.95
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    $399.95
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About Engine

 

Harley Engine Parts for Rebuilds and Performance

From a fresh gasket set to a full big bore build, we stock the Harley engine parts you need to rebuild, maintain or wake up your motor. Match parts to your engine: Evo, Twin Cam, Milwaukee-Eight and Sportster parts don't swap across.

Shop Engine Parts

We carry engine parts from S&S Cycle, Drag Specialties, V-Twin Mfg, Alloy Art, HardDrive and Rocker Lockers. Pair your build with an air cleaner and exhaust that let it breathe.

Not Sure It Fits?

Year, model and engine all matter, and plenty of parts look the same but aren't. If you can't tell whether something fits your bike, hit us up with your year and model and we'll check it before you order.