Primary
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Diamond - DMD-4282RV86NRI - Primary Chain - 428-2 x 86
Diamond
$218.95Diamond - DMD-4282RV86NRI - Primary Chain - 428-2 x 86 Features Endless link Diamond primary chain Made in the U.S.A. Replacement Part for OEM Number(s): 4003707 Specs Riding Style Street Model Diamond Product Name Primary...$218.95 -
Colony - 7826-1 - Nut - Motor Sprocket - Big Twin
Colony Machine
$19.95Colony - 7826-1 - Nut - Motor Sprocket - Big Twin Features Made in the U.S.A. Replacement Part for OEM Number(s): 2400355 Specs Application Motor Sprocket Base Color Silver Measurement System SAE Base...$19.95 -
Cometic - C9314F5 - Primary Gasket
Cometic
$29.35Cometic - C9314F5 - 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...$29.35 -
Cometic - C9307F5 - Primary Gasket
Cometic
$45.10Cometic - C9307F5 - 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...$45.10 -
Cometic - C10211 - Primary Gasket - M8
Cometic
$33.55Cometic - C10211 - Primary Gasket - M8FeaturesCometic'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...$33.55 -
Cometic - C9607F1 - Primary Gasket - Softail
Cometic
$45.10Cometic - C9607F1 - Primary Gasket - SoftailFeaturesCometic'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...$45.10 -
Cometic - C9145F1 - Primary Gasket
Cometic
$46.15Cometic - C9145F1 - 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 -
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 -
Cometic - C9887 - Primary Gasket Kit
Cometic
$101.80Cometic - C9887 - 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...$101.80 -
Belt Drives Ltd. - 62-39SK-2 - 8mm/1.5" Primary Belt Drive - Kick Start - '55-'64
Belt Drives Ltd.
$627.95Belt Drives Ltd. - 62-39SK-2 - 8mm/1.5" Primary Belt Drive - Kick Start - '55-'64 Features All 8mm kits come with belt, clutch basket, front pulley, nut and washer Pulley and clutch basket are hard anodized aluminum; front pulley is drilled and...$627.95 -
Belt Drives Ltd. - 62-39TK-1 - 8mm/1.5" Primary Belt Drive - Kick Start - '36-'54
Belt Drives Ltd.
$627.95Belt Drives Ltd. - 62-39TK-1 - 8mm/1.5" Primary Belt Drive - Kick Start - '36-'54 Features All 8mm kits come with belt, clutch basket, front pulley, nut and washer Pulley and clutch basket are hard anodized aluminum; front pulley is drilled and...$627.95 -
Belt Drives Ltd. - 61-41SE-1 - 8mm Primary Belt Drive - Electric Start - '65-'78
Belt Drives Ltd.
$730.95Belt Drives Ltd. - 61-41SE-1 - 8mm Primary Belt Drive - Electric Start - '65-'78 Features All 8mm kits come with belt, clutch basket, front pulley, nut and washer Pulley and clutch basket are hard anodized aluminum; front pulley is drilled and...$730.95 -
Belt Drives Ltd. - 61-41SE-2 - 8mm Primary Belt Drive - Electric Start - '79-'84
Belt Drives Ltd.
$730.95Belt Drives Ltd. - 61-41SE-2 - 8mm Primary Belt Drive - Electric Start - '79-'84 Features All 8mm kits come with belt, clutch basket, front pulley, nut and washer Pulley and clutch basket are hard anodized aluminum; front pulley is drilled and...$730.95 -
Belt Drives Ltd. - CD-1-90 - Primary Drive System - Electric Start - Dyna/Softail
Belt Drives Ltd.
$1,208.95Belt Drives Ltd. - CD-1-90 - Primary Drive System - Electric Start - Dyna/Softail Features Kit includes primary chain, front sprocket and nut, chain adjuster, clutch basket and clutch assembly with aramid plates Feature new-style clutch that...$1,208.95 -
Belt Drives Ltd. - CD-1-70 - Primary Drive System - Electric Start
Belt Drives Ltd.
$1,208.95Belt Drives Ltd. - CD-1-70 - Primary Drive System - Electric Start Features Kit includes primary chain, front sprocket and nut, chain adjuster, clutch basket and clutch assembly with aramid plates Feature new-style clutch that eliminates grabbing...$1,208.95 -
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 -
Belt Drives Ltd. - PS-1000 - Inner Primary Spacer
Belt Drives Ltd.
$98.95Belt Drives Ltd. - PS-1000 - 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 Color/Finish Polished Riding...$98.95 -
Belt Drives Ltd. - PS-750 - Inner Primary Spacer
Belt Drives Ltd.
$79.95Belt Drives Ltd. - PS-750 - 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 Color/Finish Polished Riding...$79.95 -
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 -
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 -
Belt Drives Ltd. - CDBCS-1-90 - Primary Drive with Lockup
Belt Drives Ltd.
$1,344.95Belt Drives Ltd. - CDBCS-1-90 - Primary Drive with Lockup Features Complete chain drive kit featuring BDL's ball-bearing lockup clutch for riders who want a lighter, easier to operate clutch Provides approximately 60% more surface contact area than...$1,344.95 -
Belt Drives Ltd. - CS-34A - Compensator Sprocket - 34 Tooth - '07-'25 Big Twin
Belt Drives Ltd.
$302.95Belt Drives Ltd. - CS-34A - Compensator Sprocket - 34 Tooth - '07-'25 Big Twin Features Three-piece patented design with no spring Weighs less than the stock sprocket Made in the U.S.A. Specs Riding...$302.95 -
Baker Drivetrain - PRK-FL-M8 - Primary Rebuild Kit - M8 Touring
Baker Drivetrain
$149.00Baker Drivetrain - PRK-FL-M8 - Primary Rebuild Kit - M8 TouringFeaturesA convenient all-inclusive primary gasket and seal kit for anytime the primary case is removedIncludes gaskets, seals and O-ringsMade in the U.S.A.SpecsProduct NameRebuild...$149.00 -
Baker Drivetrain - PRK-ST-M8 - Primary Rebuild Kit - M8 Softail
Baker Drivetrain
$149.00Baker Drivetrain - PRK-ST-M8 - Primary Rebuild Kit - M8 SoftailFeaturesA convenient all-inclusive primary gasket and seal kit for anytime the primary case is removedIncludes gaskets, seals and O-ringsMade in the U.S.A.SpecsProduct NameRebuild...$149.00 -
Baker Drivetrain - PRK-FL - Primary Rebuild Kit - '94-'06 Touring
Baker Drivetrain
$119.00Baker Drivetrain - PRK-FL - Primary Rebuild Kit - '94-'06 TouringFeaturesA convenient all-inclusive primary gasket and seal kit for anytime the primary case is removedIncludes gaskets, seals and O-ringsMade in the U.S.A.SpecsProduct NameRebuild KitRiding...$119.00 -
Baker Drivetrain - PRK-FXST - Primary Rebuild Kit - '94-'06 Softail, '94-'05 Dyna
Baker Drivetrain
$119.00Baker Drivetrain - PRK-FXST - Primary Rebuild Kit - '94-'06 Softail, '94-'05 DynaFeaturesA convenient all-inclusive primary gasket and seal kit for anytime the primary case is removedIncludes gaskets, seals and O-ringsMade in the U.S.A.SpecsProduct...$119.00 -
Baker Drivetrain - PRK-FL-2 - Primary Rebuild Kit - '07-'16 Touring
Baker Drivetrain
$119.00Baker Drivetrain - PRK-FL-2 - Primary Rebuild Kit - '07-'16 TouringFeaturesA convenient all-inclusive primary gasket and seal kit for anytime the primary case is removedIncludes gaskets, seals and O-ringsMade in the U.S.A.SpecsProduct NameRebuild...$119.00 -
Belt Drives Ltd. - 41SI - Front Pulley
Belt Drives Ltd.
$181.95Belt Drives Ltd. - 41SI - Front Pulley Features Tough, high-quality billet construction Pulley features bolt-in splined or tapered insert Includes belt guides and mounting hardware Hard anodized finish Made in the U.S.A. Specs Product...$181.95 -
Belt Drives Ltd. - 40SI - Front Pulley
Belt Drives Ltd.
$181.95Belt Drives Ltd. - 40SI - Front Pulley Features Tough, high-quality billet construction Pulley features bolt-in splined or tapered insert Includes belt guides and mounting hardware Hard anodized finish Made in the U.S.A. Specs Tooth...$181.95 -
Belt Drives Ltd. - CS-24A-1 - Compensator Sprocket - 24 Tooth - For Big Twin '99-'06
Belt Drives Ltd.
$136.95Belt Drives Ltd. - CS-24A-1 - Compensator Sprocket - 24 Tooth - For Big Twin '99-'06 Features Three-piece patented design with no spring Weighs less than the stock sprocket Made in the U.S.A. Specs Riding...$136.95 -
Belt Drives Ltd. - CS-25A-1 - Compensator Sprocket - 25 Tooth - For Big Twin '99-'06
Belt Drives Ltd.
$136.95Belt Drives Ltd. - CS-25A-1 - Compensator Sprocket - 25 Tooth - For Big Twin '99-'06 Features Three-piece patented design with no spring Weighs less than the stock sprocket Made in the U.S.A. Specs Tooth...$136.95 -
James Gasket - Engine Inner Primary Seal fits '17-'23 M-Eight Models (OEM #256004-55, 257004-55)
James Gaskets
$24.95James Gasket - Engine Inner Primary Seal fits '17-'23 M-Eight Models (OEM #256004-55, 257004-55) Features: Made in the U.S.A. Fitment 2020 Harley-Davidson Road Glide Limited FLTRK - - 2020 Harley-Davidson Softail Low Rider S...$24.95 -
James Gasket - Primary Cover Gasket fits '17-'23 Touring Models (OEM #257003-78)
James Gaskets
$42.95James Gasket - Primary Cover Gasket fits '17-'23 Touring Models (OEM #257003-78) Features: Replacement Engine Gasket Fitment 2020, 2022 Harley-Davidson Road Glide Limited...$42.95 -
James Gasket - Primary Cover Lock Plate fits '65-'69 Big Twin Models
James Gaskets
$6.95James Gasket - Primary Cover Lock Plate fits '65-'69 Big Twin Models Features: For Big Twin applications Fitment: 1965-1969 Harley-Davidson Electra Glide FL - - 1965-1969 Harley-Davidson 1200 Electra Glide FLH - -$6.95 -
James Gasket - Primary Cover Gasket fits '86-'90 Sportster Models (OEM #34955-75)
James Gaskets
$45.95James Gasket - Primary Cover Gasket fits '86-'90 Sportster Models (OEM #34955-75) Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone beading Made in the...$45.95 -
James Gasket - Primary Gasket fits '65-'84 FL/FLH/FX/FXE/FXWG Models (Gaskets, Seals and O-Rings)
James Gaskets
$98.95James Gasket - Primary Gasket fits '65-'84 FL/FLH/FX/FXE/FXWG Models (Gaskets, Seals and O-Rings) Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone beading Made in the...$98.95 -
James Gasket - Primary Gasket fits '65-'84 FL/FLH/FX/FXE/FXWG Models
James Gaskets
$86.95James Gasket - Primary Gasket fits '65-'84 FL/FLH/FX/FXE/FXWG Models Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone beading Made in the USA Note: Seals not...$86.95 -
James Gasket - Primary Gasket fits '05-'06 Touring Models w/ Foamet®
James Gaskets
$98.95James Gasket - Primary Gasket fits '05-'06 Touring Models w/ Foamet® Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone beading Made in the...$98.95 -
James Gasket - Primary Gasket fits '89-'93 Softail & Dyna Glide Models w/ Foamet®
James Gaskets
$119.95James Gasket - Primary Gasket fits '89-'93 Softail & Dyna Glide Models w/ Foamet® Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone beading Made in the...$119.95 -
James Gasket - 9 Hole Rigid Mount Foamet® Primary Cover Gasket fits '65-'88 Big Twin Models (OEM #60538-81, 60538-81A)
James Gaskets
$52.95James Gasket - 9 Hole Rigid Mount Foamet® Primary Cover Gasket fits '65-'88 Big Twin Models (OEM #60538-81, 60538-81A) Features: Top quality gaskets, seals and O-rings meet or exceed OEM specifications Primary gasket features silicone...$52.95
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.