Harley Drivetrain
Harley Bike Drivetrain Parts at JJ Motorsports
Upgrade your Harley's drivetrain for smoother power delivery and reliability with components from JJ Motorsports. Our selection includes transmission mounting plates, offset sprockets, mechanical reverse kits, starter spacers, pulley spacers, and primary covers designed for heavy-duty use, easy bolt-in installation, and enhanced performance. Compatible with Big Twins, Softail, Dyna, and more, these parts feature chrome finishes, billet aluminum, and CNC-machined steel for corrosion resistance and custom fitment.
Shop trusted brands like Paughco for primary covers and PBI for sprockets. Explore related categories such as Harley engine parts for rebuilds or Harley suspension for balanced setups.
Top Harley Drivetrain Products
- PAUGHCO Transmission Plate - OE Type 4-Speed 218 – Heavy-duty steel for Big Twins with 4-speed transmissions.
- PBI Offset Transmission Sprocket - 22-Tooth 281-22 – CNC-machined chromoly steel with 0.750" offset for 530 chains.
- MOTOR TRIKE Mechanical Reverse Kit MTTR-0025 – Lightweight aluminum with electronic cut-off for easy parking.
- TERRY COMPONENTS Starter Spacer 779000 – Billet aluminum, 1-1/2" thick for longer starters.
- PINGEL Rear Pulley Spacer 62051 – Billet aluminum for wider tires up to 142mm.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
PANTHER Rear Drive Belt - 128-Tooth - 1 1/2" 62-0943
PANTHER
$298.77A drive belt is only as reliable as its tensile strength and resistance to the demands of high-RPM operation. The PANTHER Rear Drive Belt delivers consistent power transmission without the stretch and shrinkage that compromises bearing life and overall...DS197006- SKU:
- DS197006
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 128
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
$298.77 -
PANTHER Rear Drive Belt - 150-Tooth - 1 3/8" 62-1232
PANTHER
$332.15A reliable rear drive belt is critical to maintaining consistent power delivery and preventing unexpected drivetrain failures during high-performance operation. The PANTHER Rear Drive Belt leverages ULTRA-CORD™ tensile technology and advanced polymer...23020001- SKU:
- 23020001
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 150
- WIDTH IMPERIAL:
- 1-3/8'
- RIDING STYLE:
- STREET
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
$332.15 -
PANTHER Rear Drive Belt - 139-Tooth - 1 1/2" 62-1178
PANTHER
$344.15A worn or stretched drive belt robs your engine of efficiency and reliability. The PANTHER Rear Drive Belt delivers consistent power transfer with minimal slippage, keeping your drivetrain running at peak performance while extending the service life of...MBR139- SKU:
- MBR139
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- TOOTH COUNT:
- 139
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
$344.15Qty in Cart: 0Quantity:Price:$344.15Subtotal: -
MAGNUM Hydraulic Clutch Line - 74" 31274CVO
MAGNUM
$132.95Whether you're relocating calipers for a custom brake setup or converting to a dual-disc configuration, the MAGNUM Hydraulic Clutch Line gives you the precision fit and reliability that high-performance applications demand. The Aramid Fiber reinforcement...11321479- SKU:
- 11321479
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- MATERIAL:
- DUPONT™ KEVLAR®
- RIDING STYLE:
- STREET
- TYPE:
- HYDRAULIC
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- LENGTH IMPERIAL:
- 74'
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- MATERIAL:
- PTFE
$132.95 -
MAGNUM Hydraulic Clutch Line - 70" 31270CVO
MAGNUM
$132.95Precision hydraulic clutch control demands lines engineered to eliminate expansion and deliver consistent engagement feel lap after lap. The MAGNUM 70" Hydraulic Clutch Line gives you CNC-bent tubing matched to your exact drivetrain geometry, whether...11321481- SKU:
- 11321481
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- PTFE
- PRODUCT NAME:
- CLUTCH LINE
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- TYPE:
- HYDRAULIC
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- LENGTH IMPERIAL:
- 70'
- MATERIAL:
- DUPONT™ KEVLAR®
$132.95 -
MAGNUM Hydraulic Clutch Line - 78" 31278CVO
MAGNUM
$135.95If you're relocating brake calipers or converting to a dual-disc setup, factory brake lines simply won't reach—and improvised solutions compromise safety and performance. The MAGNUM Hydraulic Clutch Line delivers precision-engineered routing with...11321485- SKU:
- 11321485
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- DUPONT™ KEVLAR®
- TYPE:
- HYDRAULIC
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- LENGTH IMPERIAL:
- 78'
- MATERIAL:
- PTFE
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$135.95Qty in Cart: 0Quantity:Price:$135.95Subtotal: -
MAGNUM Hydraulic Clutch Line - 78" 41278CVO
MAGNUM
$130.95Whether you're relocating brake calipers for a custom build or converting to a dual-disc setup, stock brake lines simply won't reach where you need them. The MAGNUM Hydraulic Clutch Line extends your stopping power to non-standard mounting locations...11321487- SKU:
- 11321487
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MATERIAL:
- DUPONT™ KEVLAR®
- MATERIAL:
- PTFE
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- LENGTH IMPERIAL:
- 78'
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- TYPE:
- HYDRAULIC
$130.95Qty in Cart: 0Quantity:Price:$130.95Subtotal: -
MAGNUM Build-Your-Own Clutch Fitting - Hydraulic 391140
MAGNUM
$32.95Custom-fit clutch hydraulics shouldn't require guesswork or multiple ordering cycles. The MAGNUM Build-Your-Own Clutch Fitting eliminates wasted hose, poor fitment, and installation delays by letting you assemble a complete clutch line to your exact...11321122- SKU:
- 11321122
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BUILD YOUR OWN (BYO)
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FITTING
- TYPE:
- CLUTCH
- UNITS:
- EACH
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
MAGNUM Hydraulic Clutch Line - KARBONFIBR 71776
MAGNUM
$127.95Stock hydraulic clutch lines are prone to expansion under pressure, leading to a mushy pedal feel and inconsistent clutch engagement—critical liabilities on track or in high-performance driving. The MAGNUM Hydraulic Clutch Line eliminates this by using a...11321593- SKU:
- 11321593
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
MAGNUM Build-Your-Own Clutch Fitting - Stainless 391120
MAGNUM
$34.95Clutch line fitment can be a guessing game—over-order hose and you're left with excess, under-order and you're fabricating custom solutions. The MAGNUM Build-Your-Own Clutch Fitting eliminates that friction by letting you cut bulk line to exact...11320818- SKU:
- 11320818
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BUILD YOUR OWN (BYO)
- UNITS:
- EACH
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$34.95 -
MAGNUM Build-Your-Own Clutch Fitting - Stainless 391130
MAGNUM
$31.95Custom clutch line routing often means paying premium prices for pre-assembled lines that don't quite fit your setup—or worse, settling for a compromised installation. The MAGNUM Build-Your-Own Clutch Fitting gives you complete control over length and...11320819- SKU:
- 11320819
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BUILD YOUR OWN (BYO)
- UNITS:
- EACH
- TYPE:
- CLUTCH
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
MAGNUM Clutch Line 31580
MAGNUM
$135.95Stock clutch lines compromise performance and aesthetics—they're prone to expansion under pressure, lack visual appeal, and deteriorate over time. The MAGNUM Clutch Line 31580 delivers consistent hydraulic feel with premium materials that match your...11321007- SKU:
- 11321007
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLUTCH LINE
- UNITS:
- EACH
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- LENGTH IMPERIAL:
- 80'
- TYPE:
- HYDRAULIC
$135.95 -
MAGNUM Clutch Line 41580
MAGNUM
$131.95A hydraulic clutch line can make or break your bike's shifting precision and overall reliability. The MAGNUM Clutch Line 41580 eliminates mushy engagement and unpredictable feel by delivering crisp, responsive lever feedback through superior materials...11321012- SKU:
- 11321012
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- COLOR/FINISH:
- BLACK
- TYPE:
- HYDRAULIC
- LENGTH IMPERIAL:
- 80'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
MAGNUM Clutch Line 41582
MAGNUM
$137.95A hydraulic clutch line is only as good as its ability to transmit pressure consistently without flex or degradation—and the MAGNUM Clutch Line 41582 delivers exactly that. Built with PTFE inner tubing reinforced by aramid fiber and wrapped in premium...11321013- SKU:
- 11321013
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- TYPE:
- HYDRAULIC
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 82'
- MATERIAL:
- STAINLESS STEEL
$137.95Qty in Cart: 0Quantity:Price:$137.95Subtotal: -
MAGNUM Hydraulic Clutch Line 31772
MAGNUM
$129.95A hydraulic clutch line is only as good as its fittings—and adapter-dependent setups introduce unnecessary points of failure. The MAGNUM 31772 eliminates that weakness with purpose-built stainless steel transmission fittings that bolt directly to your...11321025- SKU:
- 11321025
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- TYPE:
- HYDRAULIC
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- CONNECTOR TYPE:
- 10 MM STRAIGHT BANJO FITTING
- LENGTH IMPERIAL:
- 72'
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$129.95 -
MAGNUM Clutch Line 31976
MAGNUM
$135.95A hydraulic clutch line failure on the road means losing control when you need it most. The MAGNUM Clutch Line 31976 replaces weak OEM lines with military-grade materials—PTFE tubing, Kevlar aramid fiber, and premium braiding—that deliver consistent,...11321061- SKU:
- 11321061
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- LENGTH IMPERIAL:
- 76'
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- PRODUCT NAME:
- CLUTCH LINE
- TYPE:
- HYDRAULIC
$135.95Qty in Cart: 0Quantity:Price:$135.95Subtotal: -
MAGNUM Clutch Line 31978
MAGNUM
$135.95Stock clutch lines are prone to swelling, degradation, and inconsistent hydraulic response under racing conditions—compromising both safety and shift quality. The MAGNUM Clutch Line 31978 delivers precise, reliable actuation with military-grade materials...11321062- SKU:
- 11321062
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- TYPE:
- HYDRAULIC
- COLOR/FINISH:
- CHROME
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- LENGTH IMPERIAL:
- 78'
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLUTCH LINE
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- UNITS:
- EACH
$135.95Qty in Cart: 0Quantity:Price:$135.95Subtotal: -
MAGNUM Clutch Line 31980
MAGNUM
$135.95If your hydraulic clutch line is showing signs of wear, swelling, or fluid degradation, it's time for an upgrade that won't compromise performance or aesthetics. The MAGNUM Clutch Line 31980 delivers consistent hydraulic response with premium materials...11321063- SKU:
- 11321063
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLUTCH LINE
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- LENGTH IMPERIAL:
- 80'
- TYPE:
- HYDRAULIC
$135.95 -
MAGNUM Clutch Line 31982
MAGNUM
$142.95A stock clutch line won't cut it when you're pushing your bike to the limit—it's prone to swelling, inconsistent pressure delivery, and eventual failure under sustained performance riding. The MAGNUM Clutch Line 31982 delivers dead-reliable hydraulic...11321064- SKU:
- 11321064
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- TYPE:
- HYDRAULIC
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- LENGTH IMPERIAL:
- 82'
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- CHROME
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$142.95Qty in Cart: 0Quantity:Price:$142.95Subtotal: -
MAGNUM Hydraulic Clutch Line 41874
MAGNUM
$126.95A hydraulic clutch line that performs as hard as you do. The MAGNUM 41874 eliminates the need for adapter fittings with its precision stainless steel design, while the crystal-clear outer jacket protects your bike's finish from scuffs and discoloration...11321094- SKU:
- 11321094
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- TYPE:
- HYDRAULIC
- LENGTH IMPERIAL:
- 74'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$126.95Qty in Cart: 0Quantity:Price:$126.95Subtotal:
