Primary
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Out of stock
V-Twin - 18-0107 - 82 Link Primary Chain Drive System
V-Twin Manufacturing
$781.39V-Twin - 18-0107 - 82 Link Primary Chain Drive SystemDescriptionPrimary chain drive system is 82 link and features chain shoe adjuster assembly, clutch drum basket with starter ring gear, steel and fiber clutch plates with pressure plate assembly, and 24...$781.39 -
Out of stock
V-Twin - 18-0103 - 82 Link Primary Chain Drive System
V-Twin Manufacturing
$1,547.29V-Twin - 18-0103 - 82 Link Primary Chain Drive SystemDescriptionPrimary chain drive system is 82 link and features chain shoe adjuster assembly, clutch drum basket with starter ring gear, steel and fiber clutch plates with pressure plate assembly.Primary...$1,547.29 -
Out of stock
V-Twin - 17-1869 - Kick Cover Filler Plug
V-Twin Manufacturing
$21.93V-Twin - 17-1869 - Kick Cover Filler PlugDescriptionKick cover filler plug features an aluminum finish. Fits:FL 1941-1984Additional Information UOM1 - EA ManufacturerV-Twin OriginImported Tech NoteSuggested to usee with #43-0481. 4 Speed Kick Starter...$21.93 -
Out of stock
V-Twin - 17-1594 - Belt Drive Super Nut with Seal
Motorshop
$34.50V-Twin - 17-1594 - Belt Drive Super Nut with SealDescriptionBelt drive super nut with built in seal for mainshaft surface.For use with a 4th gear transmission mainshaft and a Sifton main drive gear with a 1.6290 outer diameter. Fits:UL 1937-1948FLST...$34.50 -
Out of stock
V-Twin - 17-0873 - Inner Primary Bearing Kit
Motorshop
$85.58V-Twin - 17-0873 - Inner Primary Bearing KitDescriptionInner primary bearing kit includes mount gasket, housing seals, and cover bearing. Fits:FXD 2008-2017FLST 2008-2017FXST 2008-2017FLT 2008-UPAdditional Information UOM1 - KIT ManufacturerMotorshop ...$85.58 -
Out of stock
V-Twin - 12-2036 - Outer Primary Cover Bushing
V-Twin Manufacturing
$23.88V-Twin - 12-2036 - Outer Primary Cover Bushing Description Primary cover bushing for outer primary covers. Fits: FLT 1994-1998 FXR 1994-1994 Additional Information UOM 1 - EA Manufacturer V-Twin Origin Imported$23.88 -
Out of stock
V-Twin - 12-1279 - Inner Primary Cover Bearing
Motorshop
$35.64V-Twin - 12-1279 - Inner Primary Cover BearingDescriptionInner primary cover bearing Fits:FXD 2006-2017FLST 2007-2017FXST 2007-2017Additional Information OEM No.9231 UOM1 - EA ManufacturerMotorshop OriginImported 2025 Catalog Pages443$35.64 -
Out of stock
V-Twin - 51-1874 - Primary Nerf Plate
V-Twin Manufacturing
$126.58V-Twin - 51-1874 - Primary Nerf PlateDescriptionPrimary Nerf plate features stainless steel finish and manufactured with cast steel. Protect the outer primary on hard lean deft turns. Bolt on type. Fits:FLST 1999-2017FXST 1999-2017Additional Information ...$126.58 -
Out of stock
V-Twin - 51-1873 - Primary Nerf plate
V-Twin Manufacturing
$126.58V-Twin - 51-1873 - Primary Nerf plateDescriptionPrimary Nerf plate features stainless steel finish and manufactured with cast steel. Protect the outer primary on hard lean deft turns. Bolt on type. Fits:FLT 2018-UPAdditional Information UOM1 - EA ...$126.58 -
Out of stock
V-Twin - 51-1872 - Primary Nerf Plate
V-Twin Manufacturing
$126.58V-Twin - 51-1872 - Primary Nerf PlateDescriptionPrimary Nerf plate features stainless steel finish and manufactured with cast steel. Protect the outer primary on hard lean deft turns. Bolt on type. Fits:FLST 2018-UPFXST 2018-UPAdditional Information ...$126.58 -
Out of stock
Drag Specialties - DS194015 - Right Roller Bearing Retainer - Big Twin
Drag Specialties
$24.67Drag Specialties - DS194015 - Right Roller Bearing Retainer - Big TwinFeaturesHigh-quality, replacement right crankcase roller bearing retainerReplacement Part for OEM Number(s):4357835SpecsProduct NameBearingApplicationCrankcaseTypeRollerRiding...$24.67 -
Out of stock
Drag Specialties - DS192002 - Primary Chain Adjusting Shoe - '65-'00 Big Twin
Drag Specialties
$16.43Drag Specialties - DS192002 - Primary Chain Adjusting Shoe - '65-'00 Big TwinFeaturesReplaces stock nylon shoeReplacement Part for OEM Number(s):3997665BSpecsMaterialNylonTypePrimary ChainUnitsEachProduct NameAdjusting ShoeRiding...$16.43 -
Out of stock
Drag Specialties - DS192003 - Primary Chain Adjusting Shoe - L'80-'90 XL
Drag Specialties
$16.43Drag Specialties - DS192003 - Primary Chain Adjusting Shoe - L'80-'90 XLFeaturesReplaces stock nylon shoeReplacement Part for OEM Number(s):3996680SpecsTypePrimary ChainUnitsEachMaterialNylonRiding StyleStreetProduct NameAdjusting ShoeFitment1987,...$16.43 -
Out of stock
Drag Specialties - DS192001 - Primary Chain Adjusting Shoe
Drag Specialties
$10.25Drag Specialties - DS192001 - Primary Chain Adjusting ShoeFeaturesReplaces stock nylon shoeReplacement Part for OEM Number(s):3997858SpecsTypePrimary ChainUnitsEachRiding StyleStreetProduct NameAdjusting ShoeFitment1958 Harley-Davidson Sportster 900...$10.25 -
Out of stock
Drag Specialties - DS190819S - Bolt Kit - Cam/Primary/Transmission Cover - Socket-Head - Softail
Drag Specialties
$76.60Drag Specialties - DS190819S - Bolt Kit - Cam/Primary/Transmission Cover - Socket-Head - SoftailFeaturesReplacement hardware for cam, primary, transmission, inspection and derby coverMade in the USASpecsBase FinishChromeBase...$76.60 -
Out of stock
Drag Specialties - DS190798S - Bolt Set - Cam/Primary/Sprocket Cover - Socket-Head/Smooth - '86-'90 Sportster
Drag Specialties
$47.20Drag Specialties - DS190798S - Bolt Set - Cam/Primary/Sprocket Cover - Socket-Head/Smooth - '86-'90 SportsterFeaturesReplacement hardware for cam, primary and sprocket coverIncludes oil check screwMade in the USASpecsBase...$47.20 -
Out of stock
Drag Specialties - DS190755 - Bolt Set - Cam/Primary/Inspection/Derby Cover - Knurled - '70-'84 Harley-Davidson
Drag Specialties
$26.20Drag Specialties - DS190755 - Bolt Set - Cam/Primary/Inspection/Derby Cover - Knurled - '70-'84 Harley-DavidsonFeaturesReplacement hardware for cam, primary, inspection and derby coverMade in the USASpecsColor/FinishSilverProduct NameBoltTypeInspection...$26.20 -
Out of stock
Drag Specialties - DS190751 - Bolt Set - Cam/Primary Cover - Socket-Head/Knurled - '71-'76 Sportster
Drag Specialties
$26.20Drag Specialties - DS190751 - Bolt Set - Cam/Primary Cover - Socket-Head/Knurled - '71-'76 SportsterFeaturesReplacement bolts for cam and primary coverIncludes oil check screwMade in the USASpecsBase ColorSilverStyleSocket-HeadRiding...$26.20 -
Out of stock
Drag Specialties - DS190750S - Bolt Set - Cam/Primary/Sprocket Cover - Socket-Head/Smooth - '77-'85 Sportster
Drag Specialties
$47.20Drag Specialties - DS190750S - Bolt Set - Cam/Primary/Sprocket Cover - Socket-Head/Smooth - '77-'85 SportsterFeaturesReplacement hardware for cam, primary and sprocket coverIncludes oil check screwMade in the USASpecsTypeCam...$47.20 -
Out of stock
Drag Specialties - DS190392S - Bolt Kit - Primary Cover Only - Socket-Head/Smooth - '77-'85 Sportster
Drag Specialties
$29.35Drag Specialties - DS190392S - Bolt Kit - Primary Cover Only - Socket-Head/Smooth - '77-'85 SportsterFeaturesReplacement hardware for primary cover onlyMade in the USASpecsColor/FinishSilverProduct NameBoltStyleSmoothUnitsKitColor/FinishChromeRiding...$29.35 -
Out of stock
Drag Specialties - 24010990 - Bolt Kit - Outer Primary - Chrome - Smooth - M8
Drag Specialties
$78.70Drag Specialties - 24010990 - Bolt Kit - Outer Primary - Chrome - Smooth - M8FeaturesMade in the U.S.A.Bolt kits for M8SpecsHead TypeSocketBase FinishChromeStyleSmoothBase ColorSilverProduct NameBolt KitApplicationOuter PrimaryRiding...$78.70 -
Out of stock
Drag Specialties - 11200449 - Primary Tensioner Kit - '07-'17 Twin Cam, '06 Dyna
Drag Specialties
$184.57Drag Specialties - 11200449 - Primary Tensioner Kit - '07-'17 Twin Cam, '06 DynaFeaturesAuto-adjust style kitUsed for updating an old adjuster system or when building a new bike from the ground upKit includes adjuster plate, bolts, shoe, brackets and...$184.57 -
Out of stock
Drag Specialties - 11200445 - Primary Tensioner Kit - M8
Drag Specialties
$184.57Drag Specialties - 11200445 - Primary Tensioner Kit - M8FeaturesAuto-adjust style kitUsed for updating an old adjuster system or when building a new bike from the ground upKit includes adjuster plate, bolts, shoe, brackets and hardwareSpecsRiding...$184.57 -
Out of stock
Drag Specialties - 11200353 - Primary Chain Adjuster Nut - XL '04-'22
Drag Specialties
$10.25Drag Specialties - 11200353 - Primary Chain Adjuster Nut - XL '04-'22FeaturesZinc-platedReplacement Part for OEM Number(s):7804SpecsColor/FinishZincRiding StyleStreetProduct NameAdjuster NutUnitsEachTypeSealingFitment2002-2006 Harley-Davidson 1200 Custom...$10.25 -
Out of stock
Drag Specialties - 11200077 - Primary Drive Kit
Drag Specialties
$505.68Drag Specialties - 11200077 - Primary Drive KitFeaturesKit includes compensating sprocket assembly, chain adjuster assembly and complete clutch assembly with aramid friction platesPrimary chains sold separatelySpecsTooth Count36Riding...$505.68 -
Out of stock
Drag Specialties - 11200078 - Primary Drive Kit
Drag Specialties
$531.43Drag Specialties - 11200078 - Primary Drive KitFeaturesKit includes compensating sprocket assembly, chain adjuster assembly and complete clutch assembly with aramid friction platesPrimary chains sold separatelySpecsTooth Count37UnitsKitProduct...$531.43 -
Out of stock
Drag Specialties - 09500960 - Tensioner - Primary - Twin Cam
Drag Specialties
$34.63Drag Specialties - 09500960 - Tensioner - Primary - Twin CamFeaturesHigh quality replacement componentsSold eachReplacement Part for OEM Number(s):3995499ASpecsTypePrimaryProduct NameTensionerUnitsEachRiding StyleStreetFitment2005 Harley-Davidson 15th...$34.63 -
Out of stock
Hayden Enterprises Inc. - M6-SHOEXL4 - Replacement M6 Adjuster Shoe - '77-'90 XL
Hayden Enterprises Inc.
$22.95Hayden Enterprises Inc. - M6-SHOEXL4 - Replacement M6 Adjuster Shoe - '77-'90 XLFeaturesAutomatically adjust the tension of the primary chainProvide constant and even tension, which improves gear shiftingReduce shifting noise; make for a smoother...$22.95 -
Out of stock
S&S Cycle - 560-0360 - Heavy Duty Compensator Ramp - Gray - M8
S&S Cycle
$349.95S&S Cycle - 560-0360 - Heavy Duty Compensator Ramp - Gray - M8FeaturesDirect replacement for M8 model bikesCNC machined 9000 series steelHeat-treated and coated for superior strength and corrosion resistanceMade in the USASpecsProduct NameCompensator...$349.95 -
Out of stock
Cometic - C10145F5 - Primary Gasket
Cometic
$141.70Cometic - C10145F5 - Primary GasketFeaturesHigh-quality products for long-term reliabilityManufactured from premium fuel-resistant materials that will not creep, crack or become brittleGaskets available in multiple types to best suit the intended...$141.70 -
Out of stock
Cometic - C9886 - Primary Gasket Kit
Cometic
$138.55Cometic - C9886 - Primary Gasket KitFeaturesCometic's proprietary AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a chemically blown, compounded nitrile synthetic rubber bonded to the outsideGaskets have resistance to temperatures...$138.55 -
Out of stock
Belt Drives Ltd. - 76-47-3S - 8mm/3" Primary Belt Drive - Kick Start - Spline Shaft - '55-'84
Belt Drives Ltd.
$691.95Belt Drives Ltd. - 76-47-3S - 8mm/3" Primary Belt Drive - Kick Start - Spline Shaft - '55-'84 Features All 8mm kits come with belt, clutch basket, front pulley, nut and washer 3" kit comes with a 52-piece roller bearing kit Pulley and clutch basket...$691.95 -
Out of stock
Belt Drives Ltd. - PS-1500 - Inner Primary Spacer
Belt Drives Ltd.
$154.95Belt Drives Ltd. - PS-1500 - Inner Primary Spacer Features Fit between the inner primary and motor Used with fat tire/wide frame applications Polished finish Made in the U.S.A. Specs Material Aluminum Units Each Type Inner...$154.95 -
Out of stock
Belt Drives Ltd. - PS-1250 - Inner Primary Spacer
Belt Drives Ltd.
$137.95Belt Drives Ltd. - PS-1250 - Inner Primary Spacer Features Fit between the inner primary and motor Used with fat tire/wide frame applications Polished finish Made in the U.S.A...$137.95 -
Out of stock
Belt Drives Ltd. - PS-500 - Inner Primary Spacer
Belt Drives Ltd.
$66.95Belt Drives Ltd. - PS-500 - Inner Primary Spacer Features Fit between the inner primary and motor Used with fat tire/wide frame applications Polished finish Made in the U.S.A. Specs Units Each Material Aluminum Width...$66.95 -
Out of stock
Belt Drives Ltd. - PS-250 - Inner Primary Spacer
Belt Drives Ltd.
$56.95Belt Drives Ltd. - PS-250 - Inner Primary Spacer Features Fit between the inner primary and motor Used with fat tire/wide frame applications Polished finish Made in the U.S.A. Specs Product Name Spacer Units Each Riding...$56.95 -
Out of stock
Jims - 8385 Compensator Nut Retainer fits '12-'13 Twin Cam & Screamin’ Eagle Models (OEM #83935-09A, 40274-08A)
Jims
$260.95Jims - 8385 Compensator Nut Retainer fits '12-'13 Twin Cam & Screamin’ Eagle Models (OEM #83935-09A, 40274-08A) Features: Lockplate secures nut into sprocket retainer Incorporated lock tab One piece sprocket retainer for strength Made in...$260.95 -
Out of stock
Jims - 729 Inner Primary Seal/Bearing Removal/Installation Tool fits '85-'20 Big Twin Models
Jims
$318.95Jims - 729 Inner Primary Seal/Bearing Removal/Installation Tool fits '85-'20 Big Twin Models Features: Gives a much better feel than a press while eliminating the possibility of applying too much pressure to the parts Provides precise installation...$318.95 -
Out of stock
Jims - 1709 Sprocket Shaft Bearing Tool fits '77-'02 Big Twin Models
Jims
$367.95Jims - 1709 Sprocket Shaft Bearing Tool fits '77-'02 Big Twin Models Features: Tool is used to remove the sprocket shaft Timken® bearing on late '86-'02 Big Twins with an integral sprocket shaft Does the job better than anything else on the...$367.95 -
Out of stock
Jims - 2234 Primary Drive Lock Tool fits '70-'06 Big Twin & '86-'22 Sportster Models
Jims
$73.95Jims - 2234 Primary Drive Lock Tool fits '70-'06 Big Twin & '86-'22 Sportster Models Features: Use on all primaries between front primary chain and motor sprocket Made in the U.S.A. Fitment 2016-2017 Harley-Davidson 1200 Roadster...$73.95
Harley Primary
Upgrade your Harley primary system with premium components designed for peak performance and durability. Found under our Clutch, Driveline & Transmission category, these parts are engineered to ensure smoother power delivery, reduced vibration, and more efficient drivetrain operation. Whether you're maintaining or upgrading, a strong Harley primary setup is key to getting the most out of your ride.
Our collection includes high-quality Harley primary covers, primary chains, compensator sprockets, clutch baskets, and both inner and outer primary components—all crafted from durable materials like forged steel and precision-machined aluminum. Built to handle aggressive riding and tough conditions, these parts meet or exceed OEM standards.
Don’t settle for less. Explore our full range of Harley primary parts and Harley primary covers today and feel the performance difference every time you hit the throttle.