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
-
PARTS UNLIMITED Rear Polaris Sprocket - 520 - 42 Tooth 322-3009
PARTS UNLIMITED
$41.29A worn or damaged sprocket directly impacts power transfer efficiency and can compromise your entire drivetrain's performance. This OEM-spec rear sprocket restores precise engagement with your chain,...K223009- SKU:
- K223009
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
$41.29Qty in Cart: 0Quantity:Price:$41.29Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 15-Tooth 23801-MN1-68015
PARTS UNLIMITED
$17.97A worn or damaged countershaft sprocket will compromise your entire drivetrain's efficiency and can lead to costly chain wear or failure. This OEM-spec replacement restores precise engagement between...12120326- SKU:
- 12120326
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- TYPE:
- COUNTERSHAFT
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TOOTH COUNT:
- 15
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- OFF-ROAD
$17.97 -
MOOSE RACING Differential Bearing/Seal Kit - Front 25-2059
MOOSE RACING
$82.95A worn differential bearing or seal kit compromises both handling precision and drivetrain longevity—especially under sustained high-speed or off-road conditions. The MOOSE RACING 25-2059 Front...12050167- SKU:
- 12050167
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- RIDING STYLE:
- UTV
- POSITION:
- FRONT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- UNITS:
- KIT
$82.95Qty in Cart: 0Quantity:Price:$82.95Subtotal: -
MOOSE RACING Differential Bearing/Seal Kit - Front 25-2065
MOOSE RACING
$136.95A worn differential bearing or degraded seal compromises both handling precision and drivetrain longevity—especially critical for high-performance applications where power transfer demands...12050168- SKU:
- 12050168
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- PRODUCT NAME:
- BEARING AND SEAL KIT
- POSITION:
- FRONT
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- RIDING STYLE:
- UTV
$136.95 -
MOOSE RACING Differential Bearing/Seal Kit - Arctic Cat - Front 25-2051
MOOSE RACING
$138.95Differential bearings and seals wear under constant load and extreme conditions, compromising handling precision and creating potential for costly internal damage. This complete service kit...12050182- SKU:
- 12050182
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- POSITION:
- FRONT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- UNITS:
- KIT
$138.95Qty in Cart: 0Quantity:Price:$138.95Subtotal: -
MOOSE RACING Differential/Seal Kit - Kawasaki - Front 25-2066
MOOSE RACING
$147.95A worn differential seal kit compromises both performance and reliability, leading to fluid leakage and accelerated bearing wear that can sideline your Kawasaki when you need it most. The MOOSE...12050187- SKU:
- 12050187
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- POSITION:
- FRONT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
$147.95Qty in Cart: 0Quantity:Price:$147.95Subtotal: -
PARTS UNLIMITED Rear Polaris Sprocket - 520 - 30 Tooth 322-2047
PARTS UNLIMITED
$28.57Your Polaris deserves a sprocket that matches the precision of its original equipment—and this rear sprocket delivers exactly that. Built from hardened steel and manufactured to OEM specifications,...K222047- SKU:
- K222047
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TYPE:
- DRIVE
- TOOTH COUNT:
- 30
$28.57 -
PARTS UNLIMITED Rear Polaris Sprocket - 520 - 38 Tooth 322-2065
PARTS UNLIMITED
$34.93A worn or damaged sprocket directly compromises your Polaris's power delivery and drivetrain efficiency, leading to premature chain wear and potential strand failures. This OEM-spec rear sprocket...K222065- SKU:
- K222065
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 38
- MATERIAL:
- STEEL
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- TYPE:
- DRIVE
- UNITS:
- EACH
$34.93 -
PARTS UNLIMITED Rear Polaris Sprocket - 520 - 34 Tooth 322-2068
PARTS UNLIMITED
$34.93A worn or damaged sprocket directly impacts chain engagement, acceleration response, and overall drivetrain efficiency on your Polaris. This OEM-spec replacement restores proper tooth geometry and...K222068- SKU:
- K222068
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
- COLOR/FINISH:
- NATURAL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 34
$34.93 -
PARTS UNLIMITED Countershaft Sprocket - 12-Tooth 23800-HB6-000
PARTS UNLIMITED
$12.67A worn or damaged countershaft sprocket compromises power delivery and creates unpredictable drivetrain behavior—exactly what you can't afford in racing or high-performance riding. This...K222503J- SKU:
- K222503J
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- CHAIN SIZE:
- 428
- TOOTH COUNT:
- 12
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
$12.67 -
PARTS UNLIMITED Countershaft Sprocket - 10-Tooth 23801-958-00010
PARTS UNLIMITED
$10.55A worn or damaged countershaft sprocket directly impacts your power delivery and overall drivetrain efficiency. This PARTS UNLIMITED 10-tooth sprocket is engineered to OEM specifications, ensuring...K222503N- SKU:
- K222503N
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 10
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
$10.55 -
PARTS UNLIMITED Countershaft Sprocket - 11-Tooth 23801-958-00011
PARTS UNLIMITED
$9.49A worn or damaged countershaft sprocket directly compromises your bike's power delivery and acceleration response. This OEM-spec replacement ensures your transmission engages with the precision your...K222503P- SKU:
- K222503P
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- MATERIAL:
- STEEL
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- TOOTH COUNT:
- 11
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- UNITS:
- EACH
$9.49Qty in Cart: 0Quantity:Price:$9.49Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 92823-13164
PARTS UNLIMITED
$26.45A worn or damaged countershaft sprocket will compromise your bike's power delivery and create unsafe drivetrain slack. This PARTS UNLIMITED 13-tooth sprocket restores OEM-spec engagement with...K222601G- SKU:
- K222601G
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
$26.45 -
PARTS UNLIMITED Countershaft Sprocket - 12-Tooth 13144-1127
PARTS UNLIMITED
$12.67A worn or damaged countershaft sprocket directly compromises your bike's power delivery and transmission efficiency. This OEM-spec replacement restores the precise engagement your drivetrain demands,...K222795- SKU:
- K222795
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- TYPE:
- COUNTERSHAFT
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TOOTH COUNT:
- 12
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$12.67 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 38 Tooth 41201-HB6-030
PARTS UNLIMITED
$34.93A worn or damaged rear sprocket compromises your entire drivetrain's efficiency and can lead to costly chain wear and power loss. This OEM-spec replacement ensures precise engagement with your chain,...K223505K- SKU:
- K223505K
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- NATURAL
- TOOTH COUNT:
- 38
$34.93 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 42 Tooth 41201-NF1-670
PARTS UNLIMITED
$41.29A worn or damaged rear sprocket compromises your entire drivetrain's efficiency and can lead to costly chain wear and power loss. This PARTS UNLIMITED 42-tooth rear sprocket is manufactured to OEM...K223505N- SKU:
- K223505N
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- TYPE:
- DRIVE
$41.29Qty in Cart: 0Quantity:Price:$41.29Subtotal: -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 42 Tooth 41200-HB3-000
PARTS UNLIMITED
$75.21A worn or damaged rear sprocket compromises your entire drivetrain's efficiency, leading to poor acceleration, increased chain wear, and potential catastrophic failure on the track or trail. This...K223505R- SKU:
- K223505R
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 42
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
$75.21 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 44 Tooth 41200-961-000
PARTS UNLIMITED
$80.51A worn or damaged rear sprocket will degrade acceleration response and create drivetrain inefficiency that compounds over every ride. This OEM-spec replacement ensures your 520 chain engages with...K223505T- SKU:
- K223505T
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 44
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
$80.51 -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 47 Tooth 41200-958-320
PARTS UNLIMITED
$79.45A worn or damaged rear sprocket compromises your entire drivetrain's efficiency, leading to power loss, poor acceleration, and premature chain wear. The PARTS UNLIMITED Rear Honda Sprocket delivers...K223505U- SKU:
- K223505U
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 47
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
$79.45Qty in Cart: 0Quantity:Price:$79.45Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 9383G142310014
PARTS UNLIMITED
$14.79A worn or damaged countershaft sprocket directly impacts your bike's acceleration, chain engagement, and overall drivetrain reliability. The PARTS UNLIMITED 14-Tooth Countershaft Sprocket restores...12120405- SKU:
- 12120405
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- TOOTH COUNT:
- 14
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
$14.79
