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
-
EPI Secondary Spring - Red KSS4
EPI
$32.99Fine-tuning your clutch engagement is the difference between consistent, predictable shifts and unpredictable power loss on the track. The EPI Secondary Spring - Red KSS4 gives you precise control over shift rate, side load pressure, and full shift-out...11400035- SKU:
- 11400035
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- INSTALLED LENGTH:
- 64 MM (2,5')
- INSTALLED LENGTH IMPERIAL:
- 2.5'
- UNITS:
- EACH
- COMPRESSED LOAD IMPERIAL:
- 326 LB
- COMPRESSED LOAD METRIC:
- 148 KG
- INSTALLED LENGTH METRIC:
- 64 MM
- INSTALLED LOAD IMPERIAL:
- 237 LB
- INSTALLED LOAD METRIC:
- 107.5 KG
- STYLE:
- PRIMARY (DRIVE)
- TYPE:
- CLUTCH
- COMPRESSED LENGTH IMPERIAL:
- 1.25'
- INSTALLED LOAD:
- 107,5 KG (237 LB)
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- RED
- COMPRESSED LENGTH:
- 32 MM (1,25')
- COMPRESSED LENGTH METRIC:
- 32 MM
- COMPRESSED LOAD:
- 148 KG (326 LB)
- MATERIAL:
- CHROME SILICON
- RIDING STYLE:
- ATV
$32.99 -
EPI Pro Clutch Kit PRO502
EPI
$494.99If you regularly switch between different riding conditions—from sand dunes to rocky terrain to muddy trails—a one-size-fits-all clutch setup will always be a compromise. The EPI Pro Clutch Kit PRO502 consolidates four specialized kits into one fully...11400754- SKU:
- 11400754
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- UTV
- MODEL:
- PRO SERIES
$494.99 -
On Sale
EPI Pro Clutch Kit PRO504
EPI
MSRP: $459.99Now: $294.00Was: $459.99If you ride across diverse terrain or frequently change tire sizes, a one-size-fits-all clutch setup will leave you hunting for optimal performance. The EPI Pro Clutch Kit PRO504 combines four specialized configurations into a single, adjustable...11400756- SKU:
- 11400756
- Availability:
- Ships Same Business Day
- Weight:
- 5.45 LBS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- MODEL:
- PRO SERIES
MSRP: $459.99Now: $294.00Was: $459.99 -
EPI Clutch Kit AW443152
EPI
$279.99If you've upgraded to oversized tires or frequently tackle mixed terrain, the EPI Clutch Kit AW443152 restores the low-end punch and throttle responsiveness your stock clutch can't deliver. This kit eliminates belt slip, reduces clutch heat, and provides...11400700- SKU:
- 11400700
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- PRODUCT NAME:
- CLUTCH KIT
- ELEVATION IMPERIAL:
- 0' - 3000'
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$279.99Qty in Cart: 0Quantity:Price:$279.99Subtotal: -
EPI Clutch Kit - Kawasaki AW443154
EPI
$279.99If you've upgraded to larger tires on your Kawasaki, you're likely experiencing power loss and sluggish throttle response—the EPI Clutch Kit AW443154 is engineered to restore that performance gap. This clutch kit optimizes your primary and secondary...11400701- SKU:
- 11400701
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- FOR TIRE SIZE IMPERIAL:
- 28'+
- PRODUCT NAME:
- CLUTCH
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$279.99 -
EPI Clutch Kit WE437425
EPI
$219.99If you're running oversized tires or frequently tackling trail, mud, and sand conditions, you're likely experiencing sluggish low-end response and belt slip that compromises acceleration. The EPI Clutch Kit WE437425 restores the crisp throttle feel and...11400639- SKU:
- 11400639
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- RIDING STYLE:
- ATV
$219.99 -
On Sale
EPI Clutch Kit WE437444
EPI
MSRP: $359.99Now: $230.00Was: $359.99If your riding demands versatility—whether you're tackling trails, hauling loads, or navigating variable terrain—the EPI Clutch Kit WE437444 delivers the responsiveness you need without requiring engine modifications. This field-tested kit optimizes low-...11400640- SKU:
- 11400640
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- TYPE:
- CENTRIFUGAL
- FOR TIRE SIZE IMPERIAL:
- STOCK
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- ELEVATION IMPERIAL:
- 0' - 3000'
MSRP: $359.99Now: $230.00Was: $359.99 -
EPI Clutch Kit WE437446
EPI
$374.99If you're running oversized tires or pushing your machine across varied terrain, you're likely experiencing power loss and sluggish throttle response—issues that compound under load. The EPI Clutch Kit WE437446 recalibrates your drivetrain to restore the...11400641- SKU:
- 11400641
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- RIDING STYLE:
- ATV
- ELEVATION IMPERIAL:
- 0' - 3000'
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$374.99 -
EPI Mud Clutch Kit - Polaris WE437448
EPI
$374.99When you upsize your Polaris tires, you're asking more from your clutch system—and stock components simply can't keep pace. The EPI Mud Clutch Kit restores the low-end power and torque your machine needs while eliminating the sluggish engagement that...11400642- SKU:
- 11400642
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ATV
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
- FOR TIRE SIZE IMPERIAL:
- 28'+
$374.99 -
EPI Clutch Kit WE437403
EPI
$374.99If you've upgraded to oversized tires or frequently operate in demanding conditions like trail riding, mud, or sand, the EPI Clutch Kit WE437403 restores the low-end and midrange performance your stock clutch can no longer deliver. This kit eliminates...11400644- SKU:
- 11400644
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
- FOR TIRE SIZE IMPERIAL:
- 30' - 32'
- RIDING STYLE:
- ATV
$374.99 -
EPI Mud Clutch Kit - Polaris WE437405
EPI
$374.99If you've upgraded to larger tires on your Polaris, you know the power loss and sluggish low-end response that comes with them. The EPI Mud Clutch Kit WE437405 restores that lost performance by recalibrating your primary and secondary clutch engagement,...11400645- SKU:
- 11400645
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- FOR TIRE SIZE IMPERIAL:
- 30'+
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- ATV
$374.99 -
EPI Clutch Kit WE437430
EPI
$374.99If you're running a utility machine that pulls double duty—whether you're tackling trails one weekend and hauling loads the next—a one-size-fits-all clutch kit is essential to maintaining consistent performance across varied terrain and demand. The EPI...11400647- SKU:
- 11400647
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- UNITS:
- KIT
- TYPE:
- CENTRIFUGAL
- FOR TIRE SIZE IMPERIAL:
- STOCK
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- UTV
- ELEVATION IMPERIAL:
- 0' - 3000'
$374.99Qty in Cart: 0Quantity:Price:$374.99Subtotal: -
EPI Clutch Kit WE437432
EPI
$374.99If you're running oversized tires or frequently hauling loads, you're fighting power loss and sluggish throttle response—the EPI Clutch Kit WE437432 corrects both issues with optimized engagement across the entire RPM band. This kit delivers the low-end...11400648- SKU:
- 11400648
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- UNITS:
- KIT
- ELEVATION IMPERIAL:
- 0' - 3000'
- FOR TIRE SIZE IMPERIAL:
- 30' - 32'
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
$374.99 -
EPI Mud Clutch Kit - Polaris WE437434
EPI
$374.99Running larger tires on your Polaris throws off your clutch calibration, causing power loss and sluggish throttle response—the EPI Mud Clutch Kit WE437434 restores that lost performance and gives you the low-end torque you need to power through mud...11400649- SKU:
- 11400649
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- FOR TIRE SIZE IMPERIAL:
- 30'+
$374.99 -
On Sale
EPI Clutch Kit WE437409
EPI
MSRP: $359.99Now: $230.00Was: $359.99If you split time between trail riding, work applications, and occasional aggressive terrain, you need a clutch kit engineered for versatility without compromise. The EPI WE437409 delivers improved low and mid-range acceleration while eliminating the...11400651- SKU:
- 11400651
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- FOR TIRE SIZE IMPERIAL:
- STOCK
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
MSRP: $359.99Now: $230.00Was: $359.99 -
EPI Clutch Kit WE437411
EPI
$374.99If you've upgraded to oversized tires or frequently push your machine across varied terrain, the EPI Clutch Kit WE437411 restores the low-end bite and throttle responsiveness that larger tires naturally diminish. This all-around performer delivers...11400652- SKU:
- 11400652
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$374.99 -
EPI Mud Clutch Kit - Polaris WE437214
EPI
$249.99If you've upgraded to larger tires on your Polaris, you've likely noticed a drop in power delivery and sluggish throttle response—the EPI Mud Clutch Kit WE437214 restores that performance by recalibrating your clutch system for your new tire size. This...11400654- SKU:
- 11400654
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
- FOR TIRE SIZE IMPERIAL:
- 28'+
- RIDING STYLE:
- ATV
$249.99 -
EPI Clutch Kit WE437373
EPI
$374.99If your riding demands versatility across multiple terrains and conditions, the EPI Clutch Kit WE437373 delivers the engagement and responsiveness you need without requiring engine modifications. This field-tested kit reduces belt slippage and clutch...11400655- SKU:
- 11400655
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- FOR TIRE SIZE IMPERIAL:
- STOCK
- PRODUCT NAME:
- CLUTCH KIT
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$374.99 -
EPI Clutch Kit WE437375
EPI
$374.99If you're running oversized tires or frequently tackling varied terrain—from trails to sand to hauling loads—the EPI Clutch Kit WE437375 restores the low-end punch and responsive throttle feel that larger tires naturally diminish. This kit eliminates...11400656- SKU:
- 11400656
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- ELEVATION IMPERIAL:
- 0' - 3000'
- RIDING STYLE:
- UTV
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$374.99 -
EPI Clutch Kit WE437191
EPI
$249.99If you're running oversized tires or frequently tackling trail, mud, and sand terrain, your stock clutch is likely costing you power and responsiveness. The EPI Clutch Kit WE437191 restores the low-end and midrange acceleration your machine needs, while...11400577- SKU:
- 11400577
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ATV
- ELEVATION IMPERIAL:
- 0' - 3000'
- FOR TIRE SIZE IMPERIAL:
- 27' - 28'
- RIDING STYLE:
- UTV
- TYPE:
- CENTRIFUGAL
- UNITS:
- KIT
$249.99
