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 - 125-Tooth - 1 1/8" 62-0944
PANTHER
$268.92A worn or degraded drive belt compromises your entire drivetrain by introducing slip, noise, and accelerated wear on bearings and shafts. The PANTHER Rear Drive Belt delivers the tensile strength and compound stability you need to maintain consistent...DS197007- SKU:
- DS197007
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- TOOTH COUNT:
- 125
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$268.92 -
PANTHER Rear Drive Belt - 128-Tooth - 1 1/8" 62-0945
PANTHER
$278.92A quality rear drive belt is critical to maintaining reliable power delivery and minimizing downtime between races and builds. The PANTHER 128-Tooth belt eliminates common failure points—stretching, shrinkage, and tooth degradation—that compromise...DS197008- SKU:
- DS197008
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 128
- WIDTH IMPERIAL:
- 1-1/8'
- TYPE:
- REAR DRIVE
- PRODUCT NAME:
- BELT
- UNITS:
- EACH
$278.92 -
PANTHER Rear Drive Belt - 135-Tooth - 1 1/8" 62-1172
PANTHER
$255.85A quality rear drive belt is critical to maintaining consistent power delivery and extending the life of your entire drivetrain. The PANTHER 135-Tooth belt combines advanced tensile technology with precision engineering to eliminate belt stretch and...MBR135- SKU:
- MBR135
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- TYPE:
- REAR DRIVE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 135
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
$255.85Qty in Cart: 0Quantity:Price:$255.85Subtotal: -
MAGNUM Clutch Line 41986
MAGNUM
$138.95A hydraulic clutch line that refuses to compromise on durability or appearance. The MAGNUM Clutch Line 41986 combines PTFE inner tubing with DuPont Kevlar aramid fiber braiding to deliver crisp, consistent clutch engagement while withstanding the demands...11321117- SKU:
- 11321117
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- LENGTH IMPERIAL:
- 86'
- TYPE:
- HYDRAULIC
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- BLACK
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$138.95 -
MAGNUM Hydraulic Clutch Line 31974
MAGNUM
$124.95A quality hydraulic clutch line is the backbone of responsive, predictable clutch engagement—and cheap alternatives with adapter fittings introduce unnecessary points of failure. The MAGNUM 31974 eliminates that compromise with direct-fit stainless steel...11321060- SKU:
- 11321060
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- STREET
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- TYPE:
- HYDRAULIC
- LENGTH IMPERIAL:
- 74'
$124.95Qty in Cart: 0Quantity:Price:$124.95Subtotal: -
MAGNUM Clutch Line 41972
MAGNUM
$127.95Stock clutch lines degrade under heat and pressure, leading to spongy engagement and potential hydraulic failure during aggressive riding. The MAGNUM Clutch Line 41972 replaces that weakness with military-grade materials and precision engineering,...11321110- SKU:
- 11321110
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- LENGTH IMPERIAL:
- 72'
- RIDING STYLE:
- STREET
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- TYPE:
- HYDRAULIC
$127.95 -
MAGNUM Hydraulic Clutch Line - KARBONFIBR 71580
MAGNUM
$135.95OEM clutch lines are prone to expansion under high-pressure conditions, causing inconsistent pedal feel and delayed engagement when you need precision most. The MAGNUM Hydraulic Clutch Line eliminates compliance with a carbon fiber outer wrap that...11321591- SKU:
- 11321591
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$135.95 -
MAGNUM Clutch Line 31780
MAGNUM
$134.95A hydraulic clutch line is your direct connection between lever and transmission—any flex, expansion, or degradation costs you precise modulation and wastes energy. The MAGNUM Clutch Line 31780 eliminates these compromises with DOT-compliant construction...11321029- SKU:
- 11321029
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLUTCH LINE
- UNITS:
- EACH
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- LENGTH IMPERIAL:
- 80'
- TYPE:
- HYDRAULIC
- CONNECTOR TYPE:
- 10 MM STRAIGHT BANJO FITTING
$134.95 -
MAGNUM Clutch Line 31876
MAGNUM
$134.95A hydraulic clutch line is only as reliable as its construction, and the MAGNUM Clutch Line 31876 delivers the durability and consistency that matters when precision matters most. Built with PTFE inner tubing reinforced by DuPont Kevlar aramid fiber and...11321044- SKU:
- 11321044
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- BRAND SPECIFIC COLOR:
- STERLING CHROMITE II
- LENGTH IMPERIAL:
- 76'
- PRODUCT NAME:
- CLUTCH LINE
- TYPE:
- HYDRAULIC
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
MAGNUM Clutch Line 41782
MAGNUM
$137.95A hydraulic clutch line is only as reliable as its weakest component. The MAGNUM Clutch Line 41782 eliminates flex, fluid degradation, and adapter failure points with a purpose-built design that transmits precise clutch input directly to your...11321081- SKU:
- 11321081
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CONNECTOR TYPE:
- 10 MM STRAIGHT BANJO FITTING
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- CLUTCH LINE
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- HYDRAULIC
- LENGTH IMPERIAL:
- 82'
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- UNITS:
- EACH
$137.95Qty in Cart: 0Quantity:Price:$137.95Subtotal: -
MAGNUM Clutch Line 41870
MAGNUM
$126.95Factory clutch lines restrict feel and response in high-performance riding conditions. The MAGNUM Clutch Line 41870 delivers superior hydraulic feedback through premium materials and precision engineering, giving you the immediate engagement and control...11321092- SKU:
- 11321092
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 35° BANJO FITTING
- LENGTH IMPERIAL:
- 70'
- TYPE:
- HYDRAULIC
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$126.95Qty in Cart: 0Quantity:Price:$126.95Subtotal: -
MAGNUM Clutch Line 41982
MAGNUM
$138.95A hydraulic clutch line is only as good as its ability to deliver consistent, responsive engagement without flex or failure—and the MAGNUM Clutch Line 41982 delivers exactly that. Built with PTFE inner tubing reinforced by DuPont Kevlar aramid fiber and...11321115- SKU:
- 11321115
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- COLOR/FINISH:
- BLACK
- TYPE:
- HYDRAULIC
- LENGTH IMPERIAL:
- 82'
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$138.95Qty in Cart: 0Quantity:Price:$138.95Subtotal: -
On Sale
ANDREWS Mainshaft - 4th Gear 299104
ANDREWS
MSRP: $129.95Now: $116.96Was: $129.95A worn or damaged 4th gear mainshaft can compromise your transmission's reliability and shift consistency, especially under sustained high-load conditions. The ANDREWS 299104 is engineered for precision fitment and durability, ensuring smooth power...11060063- SKU:
- 11060063
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- GEAR
- TOOTH COUNT:
- 30
- STYLE:
- STANDARD RATIO
- TYPE:
- FOURTH GEAR
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $129.95Now: $116.96Was: $129.95Qty in Cart: 0Quantity:Price:MSRP: $129.95Now: $116.96Was: $129.95Subtotal: -
THRASHIN SUPPLY CO. Derby Cover - Polished - Classic TSC-3010-2
THRASHIN SUPPLY CO.
$129.95A derby cover serves as both functional protection and a visual statement on your engine. This polished aluminum piece shields your primary cover from debris and moisture while delivering the clean, purposeful aesthetic that separates a well-maintained...11070586- SKU:
- 11070586
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061 BILLET ALUMINUM
- STYLE:
- CLASSIC
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
On Sale
Belt Drives Ltd Transmission Pulley for Harley-Davidson FLH Electra Glide 1985 TP-34
BELT DRIVES LTD.
MSRP: $265.23Now: $238.71Was: $265.23Reducing rotating mass at the transmission pulley directly improves engine responsiveness and reduces strain on your drivetrain—critical for both street performance and track applications. The Belt Drives Ltd TP-34 delivers a measurable weight savings...DS360169- SKU:
- DS360169
- Availability:
- Ships Same Business Day
- Weight:
- 3.19 LBS
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- TOOTH COUNT:
- 34
- UNITS:
- EACH
MSRP: $265.23Now: $238.71Was: $265.23 -
On Sale
Belt Drives Ltd PTFE Clutch Hub Lining for Harley-Davidson 1948-1984 FL Models CHDK-1
BELT DRIVES LTD.
MSRP: $22.62Now: $20.36Was: $22.62If you're running a classic Harley-Davidson big twin, your clutch hub lining takes a beating—especially if you're putting real power to the pavement. The Belt Drives Ltd PTFE clutch hub lining delivers the friction and durability your machine demands,...DS360171- SKU:
- DS360171
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- LINING
- TYPE:
- CLUTCH HUB
- UNITS:
- EACH
- MATERIAL:
- PTFE
MSRP: $22.62Now: $20.36Was: $22.62 -
On Sale
Belt Drives Ltd Transmission Sprocket Lock Plate Kit for Harley-Davidson Softail Deuce 2000-2006 TPR-100
BELT DRIVES LTD.
MSRP: $32.00Now: $28.80Was: $32.00Transmission sprocket slippage can quickly degrade drivetrain reliability and compromise your bike's performance on the road or track. The Belt Drives Ltd TPR-100 Lock Plate Kit prevents this by securing your sprocket with precision-engineered fastening,...DS360182- SKU:
- DS360182
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- BELT PULLEY LOCK PLATE KIT
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $32.00Now: $28.80Was: $32.00 -
On Sale
Belt Drives Ltd 8mm Primary Drive Belt for 1971-1984 Harley-Davidson FXR and 1966-1984 Touring BDL-132-1-5/8
BELT DRIVES LTD.
MSRP: $106.95Now: $96.26Was: $106.95Enhance the performance of your BDL primary drive with the BDL-132-1-5/8 replacement belt. Designed for durability and efficiency, this belt ensures smooth operation and reliable power transmission. Upgrade your machinery with this high-quality...DS360003- SKU:
- DS360003
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-5/8'
- STYLE:
- RIBBED
- TYPE:
- PRIMARY
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 132
- UNITS:
- EACH
MSRP: $106.95Now: $96.26Was: $106.95Qty in Cart: 0Quantity:Price:MSRP: $106.95Now: $96.26Was: $106.95Subtotal: -
On Sale
Belt Drives Ltd 132 Tooth 1-1/2in Wide Primary Drive Belt for Harley-Davidson FLH 1970-1977 BDL-30853 BE
BELT DRIVES LTD.
MSRP: $105.38Now: $94.84Was: $105.38Enhance the performance of your BDL primary drive with the BDL-30853 BE Replacement Belt. Designed for durability and efficiency, this belt ensures optimal power transmission and longevity, making it a reliable choice for your machinery needs. ...DS360008- SKU:
- DS360008
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- STYLE:
- RIBBED
- TOOTH COUNT:
- 132
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
MSRP: $105.38Now: $94.84Was: $105.38 -
On Sale
BAKER DRIVETRAIN Transmission Cover DD7-10602-A
BAKER DRIVETRAIN
MSRP: $479.00Now: $431.10Was: $479.00Low-profile external features allow maximum exhaust clearance, 12-point stainless steel ARP bolts and gasket included, All side covers have hydraulic feed and include 1.5" diameter piston; compatible with OEM or 11/16" hydraulic master cylinders,...11070687- SKU:
- 11070687
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- POLISHED
- UNITS:
- KIT
MSRP: $479.00Now: $431.10Was: $479.00
