ATV/UTV Drivetrain
ATV/UTV Drivetrain Parts at JJ Motorsports
Enhance your ATV or UTV's power transfer with rugged drivetrain components from JJ Motorsports. Our selection includes differential bearing/seal kits, drive shaft assemblies, reverse chains, and steel plates designed for superior strength, friction resistance, and easy installation in challenging off-road conditions. Compatible with Can-Am, Polaris, Kawasaki, and more, these parts exceed OEM specs for better traction, reduced wear, and reliable performance on trails or utility tasks.
Shop trusted brands like Moose Racing for precision kits. Explore related categories such as ATV/UTV engine parts for rebuilds or ATV/UTV braking for complete systems.
Top ATV/UTV Drivetrain Products
- MOOSE RACING Differential Bearing/Seal Kit - Can-Am - Front/Rear 25-2106 – High-speed EMQ bearings with advanced seals for optimal performance.
- MOOSE RACING Center Drive Shaft Bearing Assembly 25-1671 – Complete assembly with aggressive seals to keep out dirt and water.
- MOOSE RACING Transaxle Reverse Chain 25-8001 – Heat-treated for 4.5% stronger shear strength than OEM.
- MOOSE RACING Steel Drive Plates M80-7800-7 – 300% stronger than aluminum with increased flywheel effect for better traction.
- MOOSE RACING Differential Seal Kit - Front 25-2115-5 – High-quality rubber seals for leak-proof differential protection.
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
-
Renthal Front Sprocket 14-Tooth 520 Chain Kawasaki 302--520-14GP
RENTHAL
$39.95A smaller front sprocket delivers quicker acceleration and sharper throttle response—essential upgrades for trail riding and competitive ATV racing where weight and responsiveness directly impact lap...12120311- SKU:
- 12120311
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 14
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$39.95 -
Renthal Front Sprocket 15T Steel 520 Chain Yamaha 454--520-15GP
RENTHAL
$39.95A worn or damaged front sprocket directly impacts your Yamaha's acceleration, chain wear, and overall drivetrain reliability. The Renthal 15T Front Sprocket delivers the precision engineering and...12120212- SKU:
- 12120212
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$39.95 -
Renthal Front Sprocket 13T 520 Chain Honda TRX400EX 2005-2008 450--520-13P
RENTHAL
$39.95A worn or undersized front sprocket kills acceleration and forces your engine to work harder than it should. The Renthal 13-Tooth Front Sprocket delivers aggressive low-end power for the TRX400EX...12120246- SKU:
- 12120246
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TOOTH COUNT:
- 13
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
Renthal Front 14-Tooth Sprocket for Honda 450 520-14GP
RENTHAL
$37.95A 14-tooth front sprocket is your direct path to sharper acceleration and quicker throttle response—critical when every millisecond counts on the track or trail. Renthal's case-hardened 655M13 steel...12120247- SKU:
- 12120247
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TOOTH COUNT:
- 14
- CHAIN SIZE:
- 520
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
Renthal 36-Tooth Ultralight Rear Sprocket for Yamaha 437U-520-36GBSI
RENTHAL
$104.95Unsprung weight directly impacts your Yamaha's acceleration and chassis response—every gram matters on the track or trail. This Renthal ultralight rear sprocket cuts 66% of the mass from your...12110095- SKU:
- 12110095
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 36
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- 7075-T6 ALUMINUM
- TYPE:
- REAR
$104.95 -
Renthal 37-Tooth Rear Sprocket for Yamaha 520 Chain 437U-520-37GBSI
RENTHAL
$104.95If you're running a high-performance build on your Yamaha, every gram of unsprung weight matters—and this Renthal sprocket delivers a measurable advantage. At 66% lighter than steel alternatives, the...12110096- SKU:
- 12110096
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 37
- UNITS:
- EACH
- TYPE:
- DRIVE
- COLOR/FINISH:
- SILVER
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
Renthal 38-Tooth Ultralight Rear Sprocket for Yamaha 437U-520-38GBSI
RENTHAL
$104.95Reducing unsprung weight is one of the most effective ways to improve acceleration and handling without engine modifications. The Renthal 38-Tooth Ultralight Rear Sprocket cuts weight by...12110097- SKU:
- 12110097
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- SILVER
- TOOTH COUNT:
- 38
- PRODUCT NAME:
- SPROCKET
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
Renthal 39T Ultralight Rear Sprocket for Yamaha YFM250R YFM700R YFZ450 YFZ450X 437U-520-39GBSI
RENTHAL
$104.95Rotational mass directly impacts acceleration and handling—every gram counts when you're pushing performance limits. The Renthal 39T Ultralight Rear Sprocket cuts weight by roughly 66% compared to...12110098- SKU:
- 12110098
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ATV
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- TOOTH COUNT:
- 39
$104.95 -
Renthal Ultralight Rear Sprocket 40T 520 Pitch for Yamaha YFM250R YFM700R YFZ450R 437U-520-40GBSI
RENTHAL
$104.95Reducing unsprung weight on your Yamaha directly improves acceleration response and handling precision—critical factors whether you're racing or pushing your machine to its limits. The Renthal...12110099- SKU:
- 12110099
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 40
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SPROCKET
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
Renthal 42-Tooth Rear Sprocket for Yamaha 520 Chain 130U-520-42GBSI
RENTHAL
$99.82Shaving rotational mass off your rear sprocket directly improves acceleration and throttle response—especially critical if you're pushing your Yamaha hard on the track or trail. The Renthal 42-tooth...R13042- SKU:
- R13042
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- SILVER
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- MATERIAL:
- 7075-T6 ALUMINUM
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
$99.82 -
Renthal 37-Tooth Ultralight Rear Sprocket for Honda 223U-520-37GPSI
RENTHAL
$99.82If you're running a Honda ATV in competitive or demanding terrain, sprocket weight directly impacts your machine's acceleration, handling response, and overall agility. The Renthal 37-Tooth...R22337- SKU:
- R22337
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 37
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- TYPE:
- DRIVE
- RIDING STYLE:
- ATV
- CHAIN SIZE:
- 520
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82 -
Renthal Ultralight Rear Sprocket 39T 520 Chain Silver 223U-520-39GPSI
RENTHAL
$99.82Shaving 66% off your sprocket weight directly improves acceleration response and handling dynamics—critical advantages whether you're racing or pushing your Honda hard on the trail. The 7075-T6...R22339- SKU:
- R22339
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TYPE:
- REAR
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 39
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- 7075-T6 ALUMINUM
$99.82 -
Renthal 40-Tooth Rear Sprocket for Yamaha 130U-520 Chain 130U-520-40GBSI
RENTHAL
$99.82If you're running a Yamaha with a 520 chain, sprocket weight directly impacts acceleration and overall bike handling—and this Renthal 40-tooth rear sprocket delivers measurable gains. At 66% lighter...R13040- SKU:
- R13040
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 40
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- ALUMINUM
- MOUNTING POSITION:
- REAR
$99.82Qty in Cart: 0Quantity:Price:$99.82Subtotal: -
Renthal 41-Tooth Ultralight Rear Sprocket for Yamaha 130U-520-41GBSI
RENTHAL
$99.82Rotational mass directly impacts throttle response and handling—every gram counts on the track or trail. The Renthal 41-Tooth Ultralight Rear Sprocket cuts weight by 66% compared to steel while...R13041- SKU:
- R13041
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- SILVER
- MATERIAL:
- 7075-T6 ALUMINUM
- TOOTH COUNT:
- 41
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- TYPE:
- DRIVE
- UNITS:
- EACH
$99.82Qty in Cart: 0Quantity:Price:$99.82Subtotal: -
Renthal Ultralight Rear Sprocket 36T 520 Chain Honda TRX250R TRX300EX TRX450R 223U-520-36GPSI
RENTHAL
$99.82If you're running your Honda TRX on the track or trail, sprocket weight directly impacts your acceleration and overall handling—and this Renthal Ultralight cuts 66% of the mass compared to steel...R22336- SKU:
- R22336
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
- TOOTH COUNT:
- 36
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$99.82 -
Renthal 38T Ultralight Rear Sprocket for Honda ATC TRX 223U-520-38GPSI
RENTHAL
$99.82Rotational mass is the enemy of acceleration and handling—especially on competitive ATVs where every tenth of a second counts. The Renthal 38T Ultralight Rear Sprocket cuts that mass by 66% compared...R22338- SKU:
- R22338
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- 7075-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 38
- COLOR/FINISH:
- SILVER
- TYPE:
- DRIVE
- CHAIN SIZE:
- 520
$99.82 -
Renthal Front Sprocket 13T 520 Chain Kawasaki KFX450R 2008-2014 302--520-13GP
RENTHAL
$39.95The Renthal 302--520-13GP front sprocket directly improves throttle response and acceleration on your KFX450R by reducing sprocket tooth count—pulling harder out of corners and technical sections...12120310- SKU:
- 12120310
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$39.95 -
Renthal Front Sprocket 14T 520 Chain Yamaha YFM700R Raptor YFZ450R 454--520-14GP
RENTHAL
$39.95A worn front sprocket compromises chain engagement and accelerates drivetrain wear across your entire setup. The Renthal 14T front sprocket delivers superior durability through case-hardened 655M13...12120211- SKU:
- 12120211
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 14
$39.95 -
Renthal 13T Front Sprocket 520 Chain for 1986-1989 Honda ATC250R TRX250R 308--520-13GP
RENTHAL
$37.95A worn or damaged front sprocket directly impacts your ATC250R or TRX250R's acceleration, chain wear, and overall drivetrain efficiency. The Renthal 13T Front Sprocket delivers the precision...R30852013- SKU:
- R30852013
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- CHAIN SIZE:
- 520
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- UNITS:
- EACH
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
Renthal Front Sprocket 13-Tooth 520 Chain Kawasaki Suzuki 432--520-13P
RENTHAL
$37.95A worn or undersized front sprocket directly impacts your bike's acceleration, top-end performance, and chain lifespan. The Renthal 13-Tooth Front Sprocket delivers the precision engineering and...12120047- SKU:
- 12120047
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal:
