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 Countershaft Sprocket - 15-Tooth 9383G142310015
PARTS UNLIMITED
$14.79A worn or damaged countershaft sprocket compromises your entire drivetrain's efficiency and can lead to costly chain wear and power loss. This PARTS UNLIMITED 15-tooth sprocket is manufactured to OEM...12120406- SKU:
- 12120406
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 15
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- ATV
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
$14.79 -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 23801-HB5-00013
PARTS UNLIMITED
$8.43A worn or damaged countershaft sprocket compromises your entire drivetrain's efficiency and can lead to costly chain wear and performance loss. This OEM-spec replacement ensures precise engagement...12120153- SKU:
- 12120153
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- PRODUCT NAME:
- SPROCKET
$8.43Qty in Cart: 0Quantity:Price:$8.43Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 14-Tooth 23801-HB5-00014
PARTS UNLIMITED
$9.49A worn or damaged countershaft sprocket directly impacts your power delivery and throttle response. This OEM-spec replacement restores precise engagement between your drivetrain components,...12120154- SKU:
- 12120154
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- TOOTH COUNT:
- 14
- COLOR/FINISH:
- RAW
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- SPROCKET
- TYPE:
- COUNTERSHAFT
- CHAIN SIZE:
- 520
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$9.49Qty in Cart: 0Quantity:Price:$9.49Subtotal: -
PARTS UNLIMITED Countershaft Sprocket - 13-Tooth 13144-S006-13
PARTS UNLIMITED
$12.67A worn or damaged countershaft sprocket directly impacts your transmission's efficiency and overall drivetrain performance. This OEM-spec replacement ensures precise engagement with your chain,...12120159- SKU:
- 12120159
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- CHAIN SIZE:
- 525
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 13
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
- COLOR/FINISH:
- RAW
$12.67 -
PARTS UNLIMITED Rear Polaris Sprocket - 520 - 40 Tooth 322-2061
PARTS UNLIMITED
$40.79A worn or damaged sprocket compromises your entire drivetrain's efficiency, causing poor acceleration, increased wear on your chain, and potential mid-ride failures. This PARTS UNLIMITED rear...K222061- SKU:
- K222061
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- TYPE:
- DRIVE
- UNITS:
- EACH
- TOOTH COUNT:
- 40
- MATERIAL:
- STEEL
$40.79Qty in Cart: 0Quantity:Price:$40.79Subtotal: -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 39 Tooth 41201-HA2-671
PARTS UNLIMITED
$34.93A worn or damaged sprocket directly impacts chain engagement, power delivery, and drivetrain longevity. This PARTS UNLIMITED rear sprocket maintains OEM-exact specifications and geometry, ensuring...K223504G- SKU:
- K223504G
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
- COLOR/FINISH:
- NATURAL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 39
$34.93Qty in Cart: 0Quantity:Price:$34.93Subtotal: -
PARTS UNLIMITED Rear Honda Sprocket - 520 - 38 Tooth 41201-H0D-000
PARTS UNLIMITED
$48.71A worn or damaged rear sprocket directly compromises your drivetrain's efficiency, acceleration, and chain longevity. This OEM-spec PARTS UNLIMITED rear sprocket restores factory performance with...K223505M- SKU:
- K223505M
- Availability:
- Ships Same Business Day
- Weight:
- 1.22 LBS
- MATERIAL:
- STEEL
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- COLOR/FINISH:
- NATURAL
- MOUNTING POSITION:
- REAR
- TOOTH COUNT:
- 38
$48.71 -
PARTS UNLIMITED Rear Suzuki Sprocket - 520 - 39 Tooth 64511-02C00
PARTS UNLIMITED
$28.57A worn or damaged rear sprocket directly impacts your bike's acceleration, top-end performance, and overall drivetrain efficiency. This OEM-spec replacement sprocket restores precise chain engagement...K223803M- SKU:
- K223803M
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- NATURAL
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 520
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- ATV
- TOOTH COUNT:
- 39
$28.57 -
MOOSE RACING Differential Seal Kit - Rear 25-2111-5
MOOSE RACING
$38.95A leaking differential is a silent performance killer—fluid loss compromises lubrication, accelerates wear on gears and bearings, and can strand you mid-event or mid-drive. The MOOSE RACING...09351004- SKU:
- 09351004
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- UNITS:
- KIT
- MATERIAL:
- RUBBER
$38.95 -
MOOSE RACING Differential Seal Kit - Rear 25-2109-5
MOOSE RACING
$25.95Differential seals are critical wear items that prevent gear oil leakage and contamination—allowing your differential to maintain proper lubrication and performance under load. The MOOSE RACING...09351005- SKU:
- 09351005
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$25.95 -
MOOSE RACING Differential Seal Kit - Front 25-2110-5
MOOSE RACING
$24.95Differential seals are critical to protecting your front differential from contamination and fluid loss—two factors that directly impact gear longevity and performance under load. The MOOSE RACING...09351008- SKU:
- 09351008
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$24.95 -
MOOSE RACING Differential Seal Kit - Rear 25-2048-5
MOOSE RACING
$28.95A leaking differential seal can compromise your rear end's structural integrity and lead to catastrophic failure on the track or trail. MOOSE RACING's Differential Seal Kit addresses this critical...09350818- SKU:
- 09350818
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$28.95 -
MOOSE RACING Differential Seal Kit - Front 25-2001-5
MOOSE RACING
$23.95Differential seals are critical to maintaining gear oil integrity and preventing costly drivetrain damage from contamination and leakage. The MOOSE RACING Differential Seal Kit for front...09350406- SKU:
- 09350406
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$23.95 -
MOOSE RACING Differential Seal Kit - Front 25-2004-5
MOOSE RACING
$19.95Differential seal failure is one of the most common causes of fluid leakage and drivetrain damage in high-performance applications. The MOOSE RACING Differential Seal Kit addresses this critical...09350408- SKU:
- 09350408
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SEAL KIT
- MATERIAL:
- RUBBER
- UNITS:
- KIT
- TYPE:
- DIFFERENTIAL
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
MOOSE RACING Differential Seal Kit - Rear 25-2009-5
MOOSE RACING
$28.95Differential seal degradation compromises gear lubrication and allows contaminants into your drivetrain—a recipe for catastrophic failure. The MOOSE RACING Differential Seal Kit replaces worn OEM...09350410- SKU:
- 09350410
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$28.95 -
MOOSE RACING Differential Seal Kit - Rear 25-2010-5
MOOSE RACING
$30.95Differential seals are critical to maintaining gear oil integrity and preventing costly leaks that compromise drivetrain performance. A failing seal allows contamination and fluid loss, leading to...09350411- SKU:
- 09350411
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- UNITS:
- KIT
$30.95 -
MOOSE RACING Differential Seal Kit - Rear 25-2012-5
MOOSE RACING
$25.95A leaking differential seal transforms a minor maintenance issue into catastrophic gear damage and potential loss of vehicle control. MOOSE RACING's Differential Seal Kit eliminates seepage at the...09350412- SKU:
- 09350412
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$25.95 -
MOOSE RACING Differential Seal Kit - Rear 25-2068-5
MOOSE RACING
$32.95Differential seals are critical to maintaining gear oil integrity and preventing costly leaks that compromise differential performance and longevity. Over time, factory seals degrade from heat...09350478- SKU:
- 09350478
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- SEAL KIT
- TYPE:
- DIFFERENTIAL
- MATERIAL:
- RUBBER
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
MOOSE RACING Transaxle Rear Drive Chain 25-8005
MOOSE RACING
$198.95A transaxle rear drive chain is critical to converting engine power to wheel speed with minimal loss and maximum reliability—especially under the demands of racing. The MOOSE RACING 25-8005 combines...11060235- SKU:
- 11060235
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- TYPE:
- TRANSAXLE
- PRODUCT NAME:
- REAR DRIVE CHAIN
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$198.95 -
MOOSE RACING Transaxle Bearing/Seal Kit 25-2113
MOOSE RACING
$182.95A worn or leaking differential bearing compromises both performance and reliability, leading to costly damage down the line. The MOOSE RACING 25-2113 Transaxle Bearing/Seal Kit delivers a complete...12050399- SKU:
- 12050399
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- POSITION:
- TRANSAXLE
- TYPE:
- TRANSAXLE
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- RIDING STYLE:
- UTV
$182.95
