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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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TERRY COMPONENTS Starter Spacer 779000
TERRY COMPONENTS
$142.95Used to space the filler spout outward when using a longer aftermarket starter, Machined billet aluminum with a polished finish, 1-1/2" thick, Made in the U.S.A., Gaskets and longer bolts must be purchased separately.DS196233- SKU:
- DS196233
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- POLISHED
- WIDTH IMPERIAL:
- 1-1/2'
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER BLOCK
$142.95 -
POWERSTANDS RACING Primary Chain Tensioner 12-02001-22
POWERSTANDS RACING
$222.95Helps with over tightening; easy to adjust, Heavy-duty manual tensioner, Precision machined from billet aluminum, Mounts with OEM hardware11200409- SKU:
- 11200409
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CHAIN TENSIONER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$222.95 -
POWERSTANDS RACING Primary Chain Tensioner 12-02000-22
POWERSTANDS RACING
$222.95Helps with over tightening; easy to adjust, Heavy-duty manual tensioner, Precision machined from billet aluminum, Mounts with OEM hardware11200408- SKU:
- 11200408
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- CHAIN TENSIONER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$222.95 -
POWERSTANDS RACING Primary Chain Tensioner 12-02002-22
POWERSTANDS RACING
$222.95POWERSTANDS RACING Primary Chain Tensioner11200424- SKU:
- 11200424
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- CHAIN TENSIONER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$222.95 -
On Sale
Belt Drives Ltd 96 Tooth 11mm x 1-1/2in Primary Drive Belt BDL-30884
BELT DRIVES LTD.
MSRP: $163.95Now: $147.56Was: $163.95The BDL-30884 Replacement Belt is designed specifically for BDL primary drives, ensuring optimal performance and durability. This high-quality belt offers a reliable solution for maintaining the efficiency of your drive system, providing smooth operation...DS360011- SKU:
- DS360011
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
- STYLE:
- RIBBED
- TOOTH COUNT:
- 96
MSRP: $163.95Now: $147.56Was: $163.95 -
On Sale
Belt Drives Ltd 30 Tooth Transmission Pulley for 1991-2003 Harley-Davidson Sportster and Buell Models TPS-30
BELT DRIVES LTD.
MSRP: $202.95Now: $182.66Was: $202.95Upgrade your ride with the BELT DRIVES LTD. Transmission Pulley TP-30, crafted from lightweight 6061 T-6 aluminum and treated with a hard anodized finish for enhanced durability. This pulley is engineered to reduce weight while maintaining performance,...DS360165- SKU:
- DS360165
- Availability:
- Ships Same Business Day
- Weight:
- 2.69 LBS
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
MSRP: $202.95Now: $182.66Was: $202.95Qty in Cart: 0Quantity:Price:MSRP: $202.95Now: $182.66Was: $202.95Subtotal: -
On Sale
Belt Drives Ltd 8mm 144 Tooth Primary Belt for 1955-1984 Harley-Davidson FL Models BDL-37144-1
BELT DRIVES LTD.
MSRP: $93.95Now: $84.56Was: $93.95The BDL-37144-1 Replacement Belt is expertly designed for BDL primary drives, ensuring optimal performance and durability. This high-quality belt guarantees a smooth operation, making it an essential component for maintaining the efficiency of your...DS360012- SKU:
- DS360012
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 144
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $93.95Now: $84.56Was: $93.95 -
On Sale
Belt Drives Ltd Replacement Primary Belt 144 Tooth 2 Inch Wide for Harley-Davidson FL 1955-1964 BDL-37144-2
BELT DRIVES LTD.
MSRP: $118.95Now: $107.06Was: $118.95Enhance the performance of your BDL primary drive with the BDL-37144-2 replacement belt. Engineered for durability and efficiency, this belt ensures smooth operation and reliable power transfer for your machinery. Upgrade your system with this...DS360013- SKU:
- DS360013
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 144
- WIDTH IMPERIAL:
- 2'
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- STYLE:
- RIBBED
MSRP: $118.95Now: $107.06Was: $118.95 -
On Sale
Belt Drives Ltd 78 Tooth 14mm Primary Drive Belt for Harley-Davidson FL 1946-1952 BDL-38078
BELT DRIVES LTD.
MSRP: $236.95Now: $213.26Was: $236.95Enhance the performance of your BDL primary drives with the high-quality Replacement Belt BDL-38078. Designed for durability and efficiency, this belt ensures smooth operation and reliable power transfer, making it an essential component for optimal...DS360015- SKU:
- DS360015
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- STYLE:
- RIBBED
- TOOTH COUNT:
- 78
- TYPE:
- PRIMARY
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $236.95Now: $213.26Was: $236.95 -
On Sale
Belt Drives Ltd 11mm Belt Drive Kit for 1955-1964 Harley-Davidson FLH 47-31SK-2
BELT DRIVES LTD.
MSRP: $585.95Now: $527.36Was: $585.95Upgrade your classic ride with our top-of-the-line 11mm Belt Drive Kick Start Spline Shaft, designed specifically for models from 1955 to 1964. Crafted from hard anodized aluminum, this durable component ensures longevity and ease of maintenance, making...DS360108- SKU:
- DS360108
- Availability:
- Ships Same Business Day
- Weight:
- 8.90 LBS
- PRODUCT NAME:
- BELT DRIVE KIT
- COLOR/FINISH:
- ANODIZED
- UNITS:
- KIT
- WIDTH IMPERIAL:
- 1-1/2'
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $585.95Now: $527.36Was: $585.95 -
On Sale
Belt Drives Ltd 8mm 2in Primary Belt Drive Kit for 1955-1984 Harley-Davidson Kick Start Models 76-47-2S
BELT DRIVES LTD.
MSRP: $651.95Now: $586.76Was: $651.95Upgrade your motorcycle with the BELT DRIVES LTD. 8mm/2" Primary Belt Drive Kick Start Spline Shaft, designed for exceptional durability and performance. This kit includes everything you need for a seamless installation, ensuring your ride operates...DS360115- SKU:
- DS360115
- Availability:
- Ships Same Business Day
- Weight:
- 11.25 LBS
- PRODUCT NAME:
- BELT DRIVE KIT
- THICKNESS IMPERIAL:
- 5/16'
- UNITS:
- KIT
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 144
- WIDTH IMPERIAL:
- 2'
MSRP: $651.95Now: $586.76Was: $651.95 -
On Sale
Belt Drives Ltd 3" Front Pulley 47 Tooth for 1984-1989 Harley-Davidson Softail 47EV-3
BELT DRIVES LTD.
MSRP: $272.95Now: $245.66Was: $272.95Engineered for superior performance, the Front Pulley 3" 47EV-3 is precision machined from high-quality aluminum and finished with a hard anodized coating for enhanced durability. Proudly made in the U.S.A., this pulley is designed to optimize your belt...DS360122- SKU:
- DS360122
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 47
- TYPE:
- MOTOR SHAFT
MSRP: $272.95Now: $245.66Was: $272.95 -
On Sale
Belt Drives Ltd 1.5" 70 Tooth Mesh Pulley for Harley-Davidson Softail Springer 1995-1997 RPMS-70
BELT DRIVES LTD.
MSRP: $494.95Now: $445.46Was: $494.95Experience superior performance with the BELT DRIVES LTD. 1.50" Pulley Mesh 70 Tooth RPMS-70. Crafted from high-quality CNC billet aluminum, this pulley ensures durability and precision for your drive systems. Designed to meet RMA standards, it...DS325842- SKU:
- DS325842
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 70
- MATERIAL:
- BILLET ALUMINUM
- COLOR/FINISH:
- CHROME
- MODEL:
- MESH
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $494.95Now: $445.46Was: $494.95 -
On Sale
Belt Drives Ltd 132 Tooth 1-3/4" Primary Belt for 1972-1984 Harley-Davidson FX Models BDL-132
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Upgrade your BDL primary drive system with the BDL-132 Replacement Belt, engineered for optimal performance and durability. This high-quality belt ensures smooth operation and enhances the efficiency of your drive, making it an essential component for...DS360001- SKU:
- DS360001
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- DRIVE BELT
- STYLE:
- RIBBED
- TOOTH COUNT:
- 132
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-3/4'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
Belt Drives Ltd 141 Tooth 1-3/4" Primary Drive Belt for 1990-2006 Harley-Davidson Softail BDL-141
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Enhance the performance of your BDL primary drives with the BDL-141 Replacement Belt. Engineered for durability and precision, this belt ensures smooth operation and optimal power transfer, making it an essential component for maintaining your...DS360002- SKU:
- DS360002
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- DRIVE BELT
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
- TYPE:
- PRIMARY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-3/4'
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
Belt Drives Ltd 141 Tooth 1-5/8" Primary Drive Belt for 1986-1999 Harley-Davidson Softail BDL-141-1-5/8
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Upgrade your BDL primary drive with the high-performance Replacement Belt BDL-141-1-5/8. Designed for durability and efficiency, this belt ensures smooth operation and longevity, making it an essential component for optimal performance. ...DS360004- SKU:
- DS360004
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-5/8'
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
MSRP: $106.95Now: $96.26Was: $106.95 -
On Sale
Belt Drives Ltd 1990-2002 Harley-Davidson Softail 3" Primary Drive Belt BDL-141-3
BELT DRIVES LTD.
MSRP: $185.95Now: $167.36Was: $185.95The BDL-141-3 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drive systems. Designed for durability and reliability, this belt ensures smooth operation and longevity in demanding conditions. Upgrade your drive...DS360005- SKU:
- DS360005
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 3'
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
- STYLE:
- RIBBED
- TOOTH COUNT:
- 141
- PRODUCT NAME:
- DRIVE BELT
MSRP: $185.95Now: $167.36Was: $185.95 -
On Sale
Belt Drives Ltd 3in Rubber Belt for 2000-2002 Harley-Davidson FLTR Road Glide BDL-132-3
BELT DRIVES LTD.
MSRP: $167.95Now: $151.16Was: $167.95Enhance the performance of your BDL primary drives with the BDL-132-3 Replacement Belt. Engineered for durability and precision, this belt ensures a reliable power transfer for optimal efficiency. Upgrade your system with this high-quality replacement...DS360006- SKU:
- DS360006
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DRIVE BELT
- TOOTH COUNT:
- 132
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 3'
- STYLE:
- RIBBED
MSRP: $167.95Now: $151.16Was: $167.95 -
On Sale
Belt Drives Ltd 11mm 1-1/2in Primary Belt 92T Harley-Davidson 1941-1984 BDL-5S11
BELT DRIVES LTD.
MSRP: $163.95Now: $147.56Was: $163.95The BDL-5S11 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drives. This durable and reliable belt ensures smooth operation, enhancing the efficiency of your machinery while providing long-lasting service. ...DS360010- SKU:
- DS360010
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 92
- UNITS:
- EACH
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $163.95Now: $147.56Was: $163.95 -
BAKER DRIVETRAIN Primary Adjuster Shoe DD6-178
BAKER DRIVETRAIN
$49.00Made in the U.S.A.11200220- SKU:
- 11200220
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- MODEL:
- FAT SHOE
- PRODUCT NAME:
- ADJUSTING SHOE
- UNITS:
- EACH
$49.00
