Primary
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Colony - 7811-14 Inner Primary Mounting Kit fits '36-'54 Big Twin Models (OEM #60544-36, 60640-29)
Colony Machine
$32.95Colony - 7811-14 Inner Primary Mounting Kit fits '36-'54 Big Twin Models (OEM #60544-36, 60640-29) Features: Attach OE style 3-hole inner primary covers to specific models Made in the U.S.A. Replacement Part for...$32.95 -
Colony - Acorn Front Belt Drive Pulley Nut fits '99-'06 Twin Cam Models
Colony Machine
$14.95Colony - Acorn Front Belt Drive Pulley Nut fits '99-'06 Twin Cam Models Features: Chrome front pulley nut for open primary belt drive applications Made in the U.S.A. Fitment 2006 Harley-Davidson Softail Heritage EFI...$14.95 -
Paughco - Outer Primary Cover fits '36-'54/'55-'64 Big Twin Models - Chrome
Paughco
$314.95Paughco - Outer Primary Cover fits '36-'54/'55-'64 Big Twin Models - Chrome Features: Made in the U.S.A. Fitment 1949-1954 Harley-Davidson Hydra Glide FL - - 1949-1954 Harley-Davidson Hydra Glide...$314.95 -
Paughco - 4-Speed Outer Primary Cover W/O Compensating Sprockets fits '36-'54 Big Twin Models (OEM #60505-36)
Paughco
$317.95Paughco - 4-Speed Outer Primary Cover W/O Compensating Sprockets fits '36-'54 Big Twin Models (OEM #60505-36) Features: Made in the U.S.A. Puaghco Mfg Part Number B750 Fitment 1949-1954 Harley-Davidson Hydra Glide...$317.95 -
Drag Specialties - XL Primary Cover fits '04-'05 Sportster Models (Repl. OEM #25460-04) - Chrome
Drag Specialties
$367.66Drag Specialties - XL Primary Cover fits '04-'05 Sportster Models (Repl. OEM #25460-04) - Chrome This cover features die-cast aluminum construction. Gaskets not included. Fitment 2005 Harley-Davidson 883 Low...$367.66 -
Drag Specialties - XL Primary Cover fits '04-'05 Sportster Models - Satin Black
Drag Specialties
$312.04Drag Specialties - XL Primary Cover fits '04-'05 Sportster Models - Satin Black This cover features die-cast aluminum construction. Gaskets not included. Fitment 2005 Harley-Davidson 883 Low XLL 2005 Harley-Davidson 883 Roadster...$312.04 -
Performance Machine - Scallop Derby Cover fits '18-'20 Softail Models W/ Narrow Profile Primary Cover
Performance Machine
$191.95Performance Machine - Scallop Derby Cover fits '18-'20 Softail Models W/ Narrow Profile Primary Cover The Performance Machine Scallop Derby Cover features a machined Performance Machine logo and is available in three different finishes: Chrome, Contrast...$191.95 -
James Gaskets - Primary Gasket, Seal & O-Ring Kit fits '17-'23 Touring Models
James Gaskets
$59.95James Gaskets - Primary Gasket, Seal & O-Ring Kit fits '17-'23 Touring Models This kit features top-quality gaskets, seals and O-rings that meet or exceed OEM specifications. Features Primary gasket features silicone beading Made in the U.S.A...$59.95 -
Drag Specialties - Inner Primary Mainshaft Bearing/Seal Kit fits '89-'99 Evolution Big Twin & '99-'06 Big Twin Models (Exc. Dyna Glide Models)
Drag Specialties
$60.08Drag Specialties - Inner Primary Mainshaft Bearing/Seal Kit fits '89-'99 Evolution Big Twin & '99-'06 Big Twin Models (Exc. Dyna Glide Models) This kit comes with a pinion seal, a main shaft seal, bearing snap rings, an inner bearing race and a...$60.08 -
Performance Machine - Derby Covers fits '16-'21 Dressers, HD FL Trike & '15 FLHTCUL/FLHTKL Models
Performance Machine
$359.95Performance Machine - Derby Covers fits '16-'21 Dressers, HD FL Trike & '15 FLHTCUL/FLHTKL Models Performance Machine's Vision Derby Covers feature a special polycarbonate lens that give you a glimpse of the machine's inner workings! All Derby...$359.95 -
Drag Specialties - Chrome Outer Primary Covers fits Dyna/Softail Models (See Desc.)
Drag Specialties
$520.10Drag Specialties - Chrome Outer Primary Covers fits '06-'17 Dyna/Softail Models The Drag Specialties Chrome Outer Primary Cover is available in two different fitments. Part #1107-0324 fits '07-'17 Softail Models and is a replacement for OEM #60782-06,...$520.10 -
Drag Specialties - Aluminum Outer Primary Covers fits '07-'16 Touring Models
Drag Specialties
$463.45 - $472.72Drag Specialties - Aluminum Outer Primary Covers fits '07-'16 Touring Models The Drag Specialties Aluminum Outer Primary Cover is a replacement for OEM #60553-07A. It is available in your choice of a chrome or satin black finish. Features Die-cast...$463.45 - $472.72 -
James Gaskets - Inspection-Clutch Derby Cover Gasket Kit - fits '85-'98 Big Twin
James Gaskets
$28.95James Gaskets Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '85-'98 Big Twin Models$28.95 -
Drag Specialties - XL Primary Cover fits '06-'22 Sportster Models (Exc. '21-'22 Sportster S/RH1250S & '22 Nightster RH975 Models) - Satin Black
Drag Specialties
$364.57Drag Specialties - XL Primary Cover fits '06-'22 Sportster Models (Exc. '21-'22 Sportster S/RH1250S & '22 Nightster RH975 Models) - Satin Black This cover features die-cast aluminum construction. Gaskets not included...$364.57 -
Out of stock
Thrashin Supply Harley Twin Cam Derby Covers, Dished
Thrashin Supply
$139.95Thrashin Supply Co. Dished Derby Cover for Harley Twin Cam Models The Thrashin Supply Co. Dished Derby Cover is constructed from tough billet aluminum. Not only does this look super clean and sleek but it's durable so it'll last. Available in your...$139.95 -
Out of stock
Jims - 2317 Primary Locking Bar for 5-Speed FXR/FLT/FLHT Models
Jims
$43.95Jims - 2317 Primary Locking Bar for 5-Speed FXR/FLT/FLHT Models This bar is to be used to lock primary for service work. Features Immobilizes primary drive Allows for tightening with a torque wrench or loosening with a breaker bar Prevents...$43.95 -
Out of stock
Energy Suspension - Poly Cush Drive fits '09 & Up Touring Models
Energy Suspension
$46.99Energy Suspension - Poly Cush Drive fits '09 & Up Touring Models Features Manufactured with proprietary Hyer-Flex™ Polyurethane Out performs and outlasts OEM rubber Resists Oils and Chemicals Smoother ride Fitment 2019 - FLHR Road...$46.99 -
Out of stock
Drag Specialties - Manual Primary Chain Adjuster fits '07-'16 Touring, '09-'16 H-D FL Trike, '07-'17 Softail & '06-'17 Dyna Models
Drag Specialties
$212.13Drag Specialties - Manual Primary Chain Adjuster fits '07-'16 Touring, '09-'16 H-D FL Trike, '07-'17 Softail & '06-'17 Dyna Models The Manual Primary Chain Adjuster allows for the proper adjustment of the primary chain to the factory requirements of...$212.13 -
Out of stock
Thrashin Supply Billet Derby Cover fits Harley M8 Softail Models
Thrashin Supply
$129.95Thrashin Supply Billet Derby Cover fits Harley M8 Softail Models Uses Stock Gasket and hardware Made in Los Angeles, CA 2018 non-FLSB models require an equipped narrow profile primary cover for use Fitment: Fits '18-later FLSB and '19-later...$129.95 -
Out of stock
Paughco - Inner Primary Covers - fits '36-'54/'55-'64 Big Twin Models
Drag Specialties
$239.95 - $251.95Paughco Inner Primary Covers fits '36-'54/'55-'64 Big Twin Models Looking to switch up your Hydra or Duo Glide? Paughco has developed these inner primary covers that can do just that for you. Being a well known, reputable company, you can trust that...$239.95 - $251.95 -
Out of stock
Thrashin' Supply - OG Five-Hole Derby Covers fits '16 & Up Touring Models
Thrashin Supply
$169.95Thrashin' Supply - OG Five-Hole Derby Covers fits '16 & Up Touring Models Thrashin' Supply's Five-Hole Derby Covers are built from 6061 billet aluminum and utilize stock gasket and hardware. Available in your choice of black anodized finish...$169.95 -
Out of stock
Jims - 967-5 Inner Primary Bearing Tool fits '07-'19 Big Twin & '06 Dyna Models
Jims
$37.95Jims - 967-5 Inner Primary Bearing Tool fits '07-'19 Big Twin & '06 Dyna Models Features: Safely removes and installs inner primary bearing without any damage to new bearing by pushing on outer perimeter of bearing Also removes and installs...$37.95 -
Out of stock
Jims - 5534 Compensator Bolt Driver Torx Socket fits '14-'21 Big Twin Models
Jims
$20.95Jims - 5534 Compensator Bolt Driver Torx Socket fits '14-'21 Big Twin Models Features: Correct-style driver/socket for the compensating sprocket retaining fastener Made in the USA For use with Jim's part# 10500031 compensator bolt...$20.95 -
Out of stock
V-Twin - 18-0106 - 82 Link Primary Chain Drive System
York
$717.98V-Twin - 18-0106 - 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...$717.98 -
Out of stock
V-Twin - 12-2113 - Mount Stud Set for Inner Primary Cover
V-Twin Mfg
$23.94V-Twin - 12-2113 - Mount Stud Set for Inner Primary Cover Description Inner primary mount stud set includes 4 threaded studs. Fits: FL 1980-1984 FX 1980-1984 Additional Information OEM No. 16830-54 UOM 1 - SET Measurements Additional...$23.94 -
Out of stock
Cometic - C9179F1 - Primary Gasket
Cometic
$46.15Cometic - C9179F1 - Primary GasketFeaturesCometic'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 of...$46.15 -
Out of stock
Jims - 967-4 Installation/Removal Inner Primary Bearing Tool fits '07-'20 Big Twin & '06 Dyna Models
Jims
$104.95Jims - 967-4 Installation/Removal Inner Primary Bearing Tool fits '07-'20 Big Twin & '06 Dyna Models Features: Safely removes and installs inner primary bearing without any damage to new bearing by pushing on outer perimeter of bearing Also...$104.95 -
Out of stock
Colony - 9958-19 Chrome Primary Acorn Cover Mount Kit fits '99-'06 TC-88 FLT Model
Colony Machine
MSRP: $51.55$50.10Colony - 9958-19 Chrome Primary Acorn Cover Mount Kit fits '99-'06 TC-88 FLT Model Chrome acorn primary cover mount kit Fitment: FLT 1999-2006 TC-88MSRP: $51.55$50.10 -
Out of stock
Colony - 2144-1 Aluminum Primary Cover Filler Caps fits '54-'70 Sportster Models (OEM #34742-52A)
Colony Machine
$22.95Colony - 2144-1 Aluminum Primary Cover Filler Caps fits '54-'70 Sportster Models (OEM #34742-52A) Features Chrome or raw aluminum finish Made in the U.S.A. Fitment YearMakeModel 1958 - 1970 Harley-Davidson Sportster 900...$22.95 -
Out of stock
Cometic - C9125 - Primary Gasket & Seal Sportster Kit
Cometic
$40.18Cometic - C9125 - Primary Gasket & Seal Sportster KitFeaturesGlobal Trade Item Number: 191070019259At Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are constantly improving to...$40.18 -
Out of stock
James Gaskets - 63859-95 - Gasket Washer Innr Chain Cover Adhesive Backing 32Pk 63859-95
James Gaskets
$34.95James Gaskets - 63859-95 - Gasket Washer Innr Chain Cover Adhesive Backing 32Pk 63859-95FeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S.A.Fitment1995-1999Harley...$34.95 -
Out of stock
Gardnerwestcott - P-10-16-01 - Big Twin Cam And Primary 00-06 Tc Softail Models
GARDNERWESTCOTT
$162.95Gardnerwestcott - P-10-16-01 - Big Twin Cam And Primary 00-06 Tc Softail ModelsFeaturesGlobal Trade Item Number: 884960246094Polished chrome platedMade in the USAFitment2005-2006Harley DavidsonFLSTFSE CVO Softail Fat Boy2003-2004Harley DavidsonFXSTDSE...$162.95 -
Out of stock
Gardnerwestcott - P-10-17-01 - Big Twin Cam And Primary 99-06 Tc Touring Models
GARDNERWESTCOTT
$157.95Gardnerwestcott - P-10-17-01 - Big Twin Cam And Primary 99-06 Tc Touring ModelsFeaturesGlobal Trade Item Number: 884960246100Polished chrome platedMade in the USAFitment1999-2006Harley DavidsonFLHR Road King1999-2006Harley DavidsonFLHTC Electra Glide...$157.95 -
Out of stock
Gardnerwestcott - P-10-18-01 - Big Twin Cam And Primary 99-05 Tc Dyna Models
GARDNERWESTCOTT
$177.95Gardnerwestcott - P-10-18-01 - Big Twin Cam And Primary 99-05 Tc Dyna ModelsFeaturesGlobal Trade Item Number: 884960246124Polished chrome platedMade in the USAFitment2001-2002Harley DavidsonFXDWGSE CVO Dyna Switchblade1999-2005Harley DavidsonFXD Dyna...$177.95 -
Out of stock
Gardnerwestcott - P-10-17-08 - Primary Cover Set Polished 99-06 Tc Touring Models
GARDNERWESTCOTT
$69.95Gardnerwestcott - P-10-17-08 - Primary Cover Set Polished 99-06 Tc Touring ModelsFeaturesGlobal Trade Item Number: 884960246117Made in the USAPolished chrome platedFitment1999-2006Harley DavidsonFLHR Road King1999-2006Harley DavidsonFLHTC Electra Glide...$69.95 -
Out of stock
Gardnerwestcott - P-10-20-01 - Big Twin Cam And Primary 87-98 Touring And Fxr Models
GARDNERWESTCOTT
$116.95Gardnerwestcott - P-10-20-01 - Big Twin Cam And Primary 87-98 Touring And Fxr ModelsFeaturesGlobal Trade Item Number: 884960246179Polished chrome platedMade in the USAFitment1994-1998Harley DavidsonFLHR Road King1987-1998Harley DavidsonFLHTC Electra...$116.95 -
Out of stock
Gardnerwestcott - P-10-18-08 - Primary Cover Set Polished 99-06 Dyna And 00-06 Softail
GARDNERWESTCOTT
$81.95Gardnerwestcott - P-10-18-08 - Primary Cover Set Polished 99-06 Dyna And 00-06 SoftailFeaturesGlobal Trade Item Number: 884960246148Made in the USAPolished chrome platedFitment2005-2006Harley DavidsonFLSTFSE CVO Softail Fat Boy2001-2002Harley...$81.95 -
Out of stock
Colony Machine - 2294-14 - Inner Primary Mount Kit Dyna/ Softail/ Touring
Colony Machine
$25.95Colony Machine - 2294-14 - Inner Primary Mount Kit Dyna/ Softail/ TouringFeaturesFitment2001-2006Harley DavidsonFLHR Road King2001-2006Harley DavidsonFLHTC Electra Glide Classic2001-2006Harley DavidsonFLHTCU Electra Glide Ultra Classic2006Harley...$25.95 -
Out of stock
Colony Machine - 7811-14 - Inner Primary Mount Kit Knuckle 36-54
Colony Machine
$32.95Colony Machine - 7811-14 - Inner Primary Mount Kit Knuckle 36-54$32.95 -
Out of stock
Colony Machine - 7812-12 - Inner Primary Mount Kit Panhead 55-64
Colony Machine
$35.95Colony Machine - 7812-12 - Inner Primary Mount Kit Panhead 55-64FeaturesFitment1955-1964Harley DavidsonFLH Electra Glide$35.95
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.