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
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MUELLER MOTORCYCLE AG Hydro Clutch Repair Kit - M8 S0002214
MUELLER MOTORCYCLE AG
$17.95Hydraulic clutch systems demand precision maintenance to maintain consistent engagement and reliable lever feedback. This repair kit restores your clutch's responsiveness and eliminates mushy or inconsistent feel that compromises ride quality and control...11321978- SKU:
- 11321978
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$17.95 -
MUELLER MOTORCYCLE AG Hydro Clutch Repair Kit - V-Rod S0002215
MUELLER MOTORCYCLE AG
$28.95Hydraulic clutch systems demand precision maintenance to maintain consistent engagement and reliable power delivery. A worn or degraded clutch pack compromises your bike's responsiveness and can leave you stranded. The MUELLER MOTORCYCLE AG Hydro Clutch...11321979- SKU:
- 11321979
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$28.95 -
BURLY BRAND Easyboy Lite Clutch Kit - Sportster B17-119
BURLY BRAND
$71.95Long rides demand a clutch that won't leave your hand fatigued by mile 50. The BURLY BRAND Easyboy Lite Clutch Kit delivers 40% lighter clutch pull without sacrificing engagement quality, letting you focus on the road instead of fighting the lever...11300862- SKU:
- 11300862
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$71.95 -
Rekluse TorqDrive Clutch Kit 2021-2024 Harley-Davidson Sportster S RH1250S RMS-2815010
REKLUSE
$469.00The 2021-2024 Harley-Davidson Sportster S demands a clutch system that can handle aggressive throttle inputs and sustained high-load riding without fade or inconsistency. The Rekluse TorqDrive Clutch Kit delivers the torque capacity and durability your...11300860- SKU:
- 11300860
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
$469.00 -
On Sale
BARNETT Extra Plate Clutch Kit - Kevlar - Indian 304-40-20021
BARNETT
MSRP: $314.72Now: $283.25Was: $314.72Indian motorcycle clutches operate at their limit on the street and track, making wear and slippage inevitable without an upgrade. The BARNETT Extra Plate Clutch Kit adds 11% more friction surface area and 10% more clutch capacity through an additional...11313959- SKU:
- 11313959
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
MSRP: $314.72Now: $283.25Was: $314.72 -
On Sale
ARLEN NESS Chain Drive Kit - 57 Tooth - Black/Natural - FLT 300-200
ARLEN NESS
MSRP: $489.95Now: $445.85Was: $489.95If you're running big power through your '09+ FLT Touring model, a belt drive won't cut it—this Arlen Ness chain drive kit delivers the strength and responsiveness aggressive riding demands. Chain drive eliminates the slip inherent in belt systems,...12102784- SKU:
- 12102784
- Availability:
- Ships Same Business Day
- Weight:
- 10.50 LBS
MSRP: $489.95Now: $445.85Was: $489.95 -
On Sale
S&S CYCLE Drive Belt - 131 Tooth - 1" - Dyna 560-0390
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or undersized drive belt will rob your Dyna of reliable power transfer and leave you stranded on the road. The S&S Cycle 131-tooth belt delivers the tensile strength and minimal stretch needed for consistent, predictable performance in demanding...12040246- SKU:
- 12040246
- Availability:
- Ships Same Business Day
- Weight:
- 1.76 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 133 Tooth - 1" - Softail 560-0391
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or damaged drive belt compromises your Softail's primary power transmission and can leave you stranded. The S&S Cycle 133-tooth belt delivers the durability and precision fitment your bike demands, engineered with Gates Poly/Carbon X7N material to...12040247- SKU:
- 12040247
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 136 Tooth - 1" - Sportster 560-0392
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or damaged drive belt compromises your Sportster's power delivery and reliability on the road. The S&S Cycle 136-tooth belt uses Gates Poly/Carbon X7N material to eliminate stretch and maximize load capacity, ensuring consistent performance mile...12040248- SKU:
- 12040248
- Availability:
- Ships Same Business Day
- Weight:
- 1.74 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 137 Tooth - 1" - Touring/Softail/Sportser 560-0393
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or slipping drive belt compromises power transfer and reliability—exactly what you can't afford on the road or at the track. The S&S Cycle 137-tooth belt delivers the durability and minimal stretch required for consistent performance across...12040249- SKU:
- 12040249
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 133 Tooth - 20 mm - FLSTF/FLSTSB, FXST/B/C 560-0395
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or damaged drive belt compromises power transfer and reliability—two things you can't afford to lose on your Harley-Davidson. This S&S Cycle belt delivers the tensile strength and minimal stretch required for consistent engagement and longevity,...12040251- SKU:
- 12040251
- Availability:
- Ships Same Business Day
- Weight:
- 1.47 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 133 Tooth - 24 mm - Softail 560-0396
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or slipping drive belt directly impacts your Softail's reliability and rideability—and replacing it with a premium OEM-spec belt ensures consistent power transfer and eliminates the guesswork. The S&S Cycle 133-tooth belt is engineered with Gates...12040252- SKU:
- 12040252
- Availability:
- Ships Same Business Day
- Weight:
- 1.66 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 134 Tooth - 24 mm - M8 Softail 560-0397
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or compromised drive belt doesn't just cost you performance—it risks catastrophic engine damage and unexpected downtime. The S&S Cycle 134-tooth belt delivers the reliability and durability your M8 Softail demands, engineered with Gates' proven...12040253- SKU:
- 12040253
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
MSRP: $189.95Now: $170.96Was: $189.95 -
On Sale
S&S CYCLE Drive Belt - 140 Tooth - 24 mm - Touring 560-0398
S&S CYCLE
MSRP: $189.95Now: $170.96Was: $189.95A worn or slipping drive belt compromises power transfer and reliability—especially critical in touring applications where consistent performance matters. The S&S Cycle 140-tooth belt uses Gates Poly/Carbon X7N construction to deliver minimal stretch,...12040254- SKU:
- 12040254
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
MSRP: $189.95Now: $170.96Was: $189.95Qty in Cart: 0Quantity:Price:MSRP: $189.95Now: $170.96Was: $189.95Subtotal: -
KODLIN USA NXL Derby Cover - Black - M8 Touring K25409
KODLIN USA
$169.99A derby cover isn't just cosmetic—it protects your primary drivetrain from debris, moisture, and contamination while completing a refined aesthetic on your M8 Touring. The KODLIN USA NXL combines precision engineering with understated elegance, using...11070740- SKU:
- 11070740
- Availability:
- Ships Same Business Day
- Weight:
- 1.28 LBS
$169.99 -
KODLIN USA NXL Derby Cover - Black - M8 Softail K25410
KODLIN USA
$169.99A derby cover isn't just cosmetic—it protects your primary drivetrain from dirt, debris, and moisture while maintaining a clean, finished appearance on your M8 Softail. The KODLIN USA NXL derby cover combines precision engineering with durability,...11070741- SKU:
- 11070741
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
$169.99 -
KODLIN USA NXL Point Cover - Black - M8 K25411
KODLIN USA
$69.99A quality point cover protects your engine's internal ignition components while contributing to the overall aesthetic of your build. The KODLIN USA NXL combines precision engineering with purposeful design, eliminating cheap-looking plastic covers in...11070742- SKU:
- 11070742
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
$69.99 -
DARKHORSE MOTOR COMPANY Man O-War Motor Sprocket - M8 DH-MMS-A34
DARKHORSE MOTOR COMPANY
$579.95If you're running a Milwaukee 8 and tired of the noise and harshness that comes with solid compensators, the Man O-War Motor Sprocket delivers the torque response you need without sacrificing rider comfort. This performance-engineered primary drive...11200460- SKU:
- 11200460
- Availability:
- Ships Same Business Day
- Weight:
- 8.33 LBS
$579.95 -
DARKHORSE MOTOR COMPANY Replacement Cushion Kit - Man O-War DH-MCR-K
DARKHORSE MOTOR COMPANY
$49.95Keep your Man O-War motorsprocket performing at peak efficiency with this complete replacement cushion kit. Over time, cushion wear degrades sprocket response and introduces harmful vibration into your drivetrain. This OEM-equivalent kit supplies all...11200461- SKU:
- 11200461
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$49.95 -
DARKHORSE MOTOR COMPANY Replacement Cushion Kit - Man O-War - With Compression Tool DH-MCCR-K
DARKHORSE MOTOR COMPANY
$114.95Motorsprocket cushions wear out—it's inevitable. Rather than replacing your entire Man O-War assembly, this kit lets you rebuild the cushioning system with fresh components, restoring dampening performance and extending drivetrain life. OEM-quality...11200462- SKU:
- 11200462
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
$114.95
