Harley Primary Drive Systems and Parts
Harley-Davidson Primary Drive Systems & Parts at JJ Motorsports
Upgrade your Harley's primary drive with premium belt drive systems and components from JJ Motorsports, featuring high-strength pulleys, replacement belts, and complete kits for smoother power transfer, reduced maintenance, and classic open-primary style on Evo, Twin Cam, and Big Twin models. These durable parts deliver reliable performance and timeless looks.
Shop Belt Drives Ltd primary systems for race-proven quality. Explore related categories such as Harley drivetrain for clutches and chains, or Harley for exhaust and suspension to complete your open-primary build.
Top Harley-Davidson Primary Drive Systems & Parts
- Belt Drives Ltd Transmission Pulley TP-30 – 30-tooth rear transmission pulley; precision-machined for belt drive conversions on Evo and Twin Cam.
- Belt Drives Ltd Replacement Belt BDL-132 – High-strength 132-tooth replacement belt; 8mm pitch for long life on open primary systems.
- Belt Drives Ltd Belt Drive Evo 16BH-2C – Complete 2-inch belt drive kit for Evo engines; includes clutch, pulleys, and guard for classic open-primary style.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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- Qty in Cart
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- Price
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DIAMOND Primary Chain - #428-2-82 - 4-Speed DMD-4282RV82NCA
DIAMOND
$202.95Endless link Diamond primary chain, Made in the U.S.A.DS192090- SKU:
- DS192090
- Availability:
- Ships Same Business Day
- Weight:
- 3.56 LBS
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- NUMBER OF LINKS:
- 82
- UNITS:
- EACH
$202.95 -
DIAMOND Primary Chain - #35-3-94 DMD-C35-3R94NRI
DIAMOND
$169.95Endless link Diamond primary chain, Made in the U.S.A.DS192092- SKU:
- DS192092
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- RIDING STYLE:
- STREET
- NUMBER OF LINKS:
- 94
- PRODUCT NAME:
- PRIMARY CHAIN
- UNITS:
- EACH
$169.95 -
DIAMOND Primary Chain - 428-2 x 86 DMD-4282RV86NCA
DIAMOND
$212.95Endless link Diamond primary chain, Made in the U.S.A.11200410- SKU:
- 11200410
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- DIAMOND
$212.95 -
DIAMOND Primary Chain - #428-2-76 - 5-Speed DMD-4282RV76NCA
DIAMOND
$188.95Endless link Diamond primary chain, Made in the U.S.A.DS192094- SKU:
- DS192094
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- NUMBER OF LINKS:
- 76
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$188.95 -
DRAG SPECIALTIES Primary Chain Adjuster 71517
DRAG SPECIALTIES
$25.70Includes bracket shoe and retaining clip, Zinc plated, Replaces OEM adjusterDS192004- SKU:
- DS192004
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- ZINC
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CHAIN ADJUSTER KIT
- TYPE:
- PRIMARY CHAIN
- UNITS:
- EACH
$25.70 -
DRAG SPECIALTIES Primary Chain - 428-2 x 76 C226T3/006
DRAG SPECIALTIES
$137.97Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200282- SKU:
- 11200282
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- NUMBER OF LINKS:
- 76
- UNITS:
- EACH
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
$137.97 -
DRAG SPECIALTIES Primary Chain - #35-3 x 96 CA35-3S2N/1001
DRAG SPECIALTIES
$131.79Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200287- SKU:
- 11200287
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- NUMBER OF LINKS:
- 96
$131.79 -
DRAG SPECIALTIES Mainshaft Bearing Kit 25-3102
DRAG SPECIALTIES
$26.73Kit includes sealed ball bearing, seal and snap ring, Designed for use on straight splined shafts only, Designed for stock style clutches only11200217- SKU:
- 11200217
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- TYPE:
- INNER PRIMARY MAINSHAFT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$26.73 -
DRAG SPECIALTIES Inner Primary Bearing R16-2RS-W
DRAG SPECIALTIES
$12.31Sealed ball bearing fits into aluminum inner primary covers to support transmission mainshaft11200177- SKU:
- 11200177
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- TYPE:
- INNER PRIMARY MAINSHAFT
- UNITS:
- EACH
$12.31 -
On Sale
Belt Drives Ltd Front Pulley 1-5/8" 45 Tooth for 79-84 FX Shovel 84-86 Softail 45EV DS360415
BELT DRIVES LTD.
MSRP: $289.95Now: $260.96Was: $289.95Engineered for precision and durability, this front pulley is crafted from high-quality aluminum and features a hard anodized finish for enhanced wear resistance. Proudly made in the U.S.A., it is designed to deliver optimal performance and reliability...DS360415- SKU:
- DS360415
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- COLOR/FINISH:
- ANODIZED
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TYPE:
- MOTOR SHAFT
MSRP: $289.95Now: $260.96Was: $289.95 -
On Sale
Belt Drives Ltd 3" Front Pulley for 1986-1989 Harley-Davidson Softail Models 47-OFP
BELT DRIVES LTD.
MSRP: $197.95Now: $178.16Was: $197.95Engineered for precision and durability, the BELT DRIVES LTD. 3" Front Pulley is crafted from high-quality aluminum and finished with a hard anodized coating. Proudly made in the U.S.A., this pulley ensures optimal performance and longevity in demanding...DS360417- SKU:
- DS360417
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- PRODUCT NAME:
- PULLEY
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- TYPE:
- MOTOR SHAFT
MSRP: $197.95Now: $178.16Was: $197.95 -
On Sale
Belt Drives Ltd 3" Offset Pulley 48 Tooth for 1982-1994 Harley FXR 48-OFP
BELT DRIVES LTD.
MSRP: $197.95Now: $178.16Was: $197.95This high-quality 48-tooth offset pulley is designed specifically for 3" systems, ensuring optimal belt alignment for your motor setup. Crafted in the U.S.A., this pulley offers durability and precision, making it an essential component for efficient...DS360422- SKU:
- DS360422
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TYPE:
- MOTOR SHAFT
MSRP: $197.95Now: $178.16Was: $197.95 -
On Sale
Belt Drives Ltd 130 Tooth 8mm x 41mm Primary Drive Belt BDL-130K
BELT DRIVES LTD.
MSRP: $155.95Now: $140.36Was: $155.95Upgrade your BDL primary drive system with the BDL-130K Replacement Belt, designed for optimal performance and durability. This high-quality belt ensures smooth operation and longevity, making it an essential component for your drive setup. Experience...DS360430- SKU:
- DS360430
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- UNITS:
- EACH
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-5/8'
MSRP: $155.95Now: $140.36Was: $155.95 -
On Sale
Belt Drives Ltd 8mm Primary Drive Belt 138 Teeth for 1970-1983 Harley-Davidson Touring BDL-138-38K
BELT DRIVES LTD.
MSRP: $150.95Now: $135.86Was: $150.95The BDL-138-38K Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drives. Designed for durability and precision, this belt ensures smooth operation and enhances the longevity of your drive system. ...23021252- SKU:
- 23021252
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 138
- TYPE:
- PRIMARY
MSRP: $150.95Now: $135.86Was: $150.95 -
On Sale
Belt Drives Ltd 3" 8mm Belt Drive with Clutch for 1965-1984 Harley-Davidson Shovelhead FLH Electra Glide EV-76-47S
BELT DRIVES LTD.
MSRP: $1,175.95Now: $1,058.36Was: $1,175.95Transform your ride with the BELT DRIVES LTD. 3"/8mm Belt Drive featuring a clutch system designed for performance and durability. This kit provides a seamless installation with all necessary components, ensuring a smooth and efficient power transfer...23021263- SKU:
- 23021263
- Availability:
- Ships Same Business Day
- Weight:
- 18.50 LBS
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- MATERIAL:
- STEEL
- WIDTH IMPERIAL:
- 3'
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
MSRP: $1,175.95Now: $1,058.36Was: $1,175.95 -
On Sale
Belt Drives Ltd 11mm Belt Drive Kit for Harley-Davidson FLH Electra Glide 1979-1983 47-31SE-RB
BELT DRIVES LTD.
MSRP: $693.95Now: $624.56Was: $693.95Upgrade your ride with our premium 11mm Belt Drive designed specifically for 79-E84 models. Crafted from durable hard anodized aluminum, this belt drive ensures longevity and optimal performance. Please note that the inner clutch hub and plates are sold...23025001- SKU:
- 23025001
- Availability:
- Ships Same Business Day
- Weight:
- 11.40 LBS
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $693.95Now: $624.56Was: $693.95 -
On Sale
Belt Drives Ltd Rear Pulley Cover for Softail 1990-2006 TFRPC-2000
BELT DRIVES LTD.
MSRP: $137.95Now: $124.16Was: $137.95The TFRPC-2000 Rear Pulley Cover from Belt Drives Ltd. is designed specifically for BDL Belt Drive clutches, ensuring optimal performance and durability. This high-quality cover not only enhances the aesthetic appeal of your motorcycle but also provides...11200044- SKU:
- 11200044
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- PRODUCT NAME:
- REAR PULLEY COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $137.95Now: $124.16Was: $137.95 -
On Sale
Belt Drives Ltd 140 Tooth 2 Inch Wide Primary Drive Belt for Harley-Davidson Touring 2009-2016 BDL-140-2
BELT DRIVES LTD.
MSRP: $173.95Now: $156.56Was: $173.95The BDL-140-2 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance and durability in BDL primary drive systems. This high-quality belt ensures smooth operation and reliable power transmission, making it an essential component for...11200095- SKU:
- 11200095
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- STYLE:
- RIBBED
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TOOTH COUNT:
- 140
- TYPE:
- PRIMARY
MSRP: $173.95Now: $156.56Was: $173.95 -
On Sale
Belt Drives Ltd. Monster Top Fuel Belt Drive Kit for Harley-Davidson Softail 1990-2006 TF-2000
BELT DRIVES LTD.
MSRP: $3,839.95Now: $3,455.96Was: $3,839.95The Monster Belt Drive TF-2000 combines cutting-edge engineering with robust design, making it the ideal choice for high-performance motorcycles. This complete kit is engineered to enhance your ride's efficiency and power delivery while offering...11200173- SKU:
- 11200173
- Availability:
- Ships Same Business Day
- Weight:
- 51.60 LBS
- MATERIAL:
- STEEL
- UNITS:
- KIT
- MODEL:
- MONSTER
- PRODUCT NAME:
- BELT DRIVE KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $3,839.95Now: $3,455.96Was: $3,839.95 -
On Sale
Belt Drives Ltd 2" Belt Drive Kit for Harley Softail 1990-2006 Black EV-700B
BELT DRIVES LTD.
MSRP: $3,884.95Now: $3,496.46Was: $3,884.95Elevate your ride with the BELT DRIVES LTD. 2" Drive Belt, designed for both performance and style. This premium drive kit features an all-billet construction and a distinctive top guard, ensuring durability and aesthetic appeal. With versatile dome...11200320- SKU:
- 11200320
- Availability:
- Ships Same Business Day
- Weight:
- 18.10 LBS
- TOOTH COUNT:
- 142
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 2'
MSRP: $3,884.95Now: $3,496.46Was: $3,884.95
