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
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EPI Differential Bearing/Seal Kit - Rear WE290134
EPI
$95.99Differential seal failure leads to oil leakage, contamination, and catastrophic drivetrain damage—often at the worst possible moment. The EPI Differential Bearing/Seal Kit WE290134 provides a complete solution for front or rear differential rebuilds,...12050386- SKU:
- 12050386
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- RIDING STYLE:
- UTV
- POSITION:
- REAR
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- TYPE:
- DIFFERENTIAL
$95.99 -
EPI Differential Bearing/Seal Kit - Rear WE290137
EPI
$219.99A leaking differential compromises both performance and reliability—and ignoring seal degradation only compounds the damage. This EPI rebuild kit supplies all the seals and components necessary to restore your differential to OEM integrity, whether...12050389- SKU:
- 12050389
- Availability:
- Ships Same Business Day
- Weight:
- 5.85 LBS
- TYPE:
- DIFFERENTIAL
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- POSITION:
- REAR
- RIDING STYLE:
- UTV
$219.99Qty in Cart: 0Quantity:Price:$219.99Subtotal: -
EPI Differential Bearing/Seal Kit - Front WE290138
EPI
$84.99A worn differential is a ticking time bomb—leaking fluid, grinding bearings, and eventual catastrophic failure. The EPI Differential Bearing/Seal Kit (WE290138) gives you all the seals and components needed to rebuild your front or rear differential to...12050390- SKU:
- 12050390
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- RIDING STYLE:
- UTV
- POSITION:
- FRONT
- UNITS:
- KIT
- PRODUCT NAME:
- BEARING AND SEAL KIT
- RIDING STYLE:
- ATV
- TYPE:
- DIFFERENTIAL
$84.99Qty in Cart: 0Quantity:Price:$84.99Subtotal: -
EPI Universal Joint - Arctic Cat ATV WE100515
EPI
$32.99Universal joints are critical drivetrain components that transfer rotational force while accommodating misalignment between driveshaft sections. A worn or damaged joint introduces vibration, noise, and drivetrain slack that compromises handling and...12050156- SKU:
- 12050156
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PRODUCT NAME:
- UNIVERSAL JOINT
- STYLE:
- WITH U-JOINT
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- TYPE:
- TYPE ONE (INSIDE SNAP RINGS)
$32.99 -
EPI Universal Joint - Kawasaki/Suzuki ATV WE100230
EPI
$32.99A worn or damaged universal joint compromises driveline integrity, leading to vibration, power loss, and potential drivetrain failure. The EPI Universal Joint (WE100230) is a direct OEM replacement engineered to restore full drivetrain efficiency and...12050157- SKU:
- 12050157
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- UNIVERSAL JOINT
- UNITS:
- KIT
- STYLE:
- WITH U-JOINT
- RIDING STYLE:
- ATV
- TYPE:
- TYPE ONE (INSIDE SNAP RINGS)
$32.99 -
EPI Universal Joint - Can-Am WE100996
EPI
$31.99A worn or failing universal joint compromises drivetrain efficiency and can lead to vibration, noise, and costly transmission damage. The EPI Universal Joint (WE100996) is a direct OEM replacement engineered to restore smooth power transfer and...12050189- SKU:
- 12050189
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- PRODUCT NAME:
- UNIVERSAL JOINT
- STYLE:
- WITH U-JOINT
- TYPE:
- TYPE TWO (OUTSIDE SNAP RINGS)
$31.99 -
EPI Economy Clutch Kit AW433600
EPI
$99.99If you're running a CVT-equipped UTV or ATV and struggling with belt slippage during trail riding, the EPI Economy Clutch Kit AW433600 delivers the grip you need without the premium price tag. This spring kit improves belt engagement and back shift...AW433600- SKU:
- AW433600
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- FOR TIRE SIZE IMPERIAL:
- ANY
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ELEVATION IMPERIAL:
- 0' - 3000'
- TYPE:
- CENTRIFUGAL
$99.99 -
EPI Button Kit - P90 CX400042
EPI
$82.99Clutch button wear is a silent killer of performance—a worn set will rob your P85 or P90 clutch of engagement precision and reliability when you need it most. The EPI Button Kit restores OEM-spec holding power with three precisely manufactured buttons,...CX400042- SKU:
- CX400042
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- BUTTON KIT
- RIDING STYLE:
- SNOW
- COLOR/FINISH:
- BLACK
- STYLE:
- SECONDARY (DRIVEN)
- TYPE:
- CLUTCH
- UNITS:
- 12 PACK
- FOR CLUTCH TYPE:
- P90
$82.99 -
EPI Clutch Rebuild Kit WE210145
EPI
$195.99A worn primary clutch compromises your engine's power transfer and throttle response—exactly what you can't afford in racing or high-performance driving. This EPI rebuild kit gives you everything needed to restore your primary clutch to factory...WE210145- SKU:
- WE210145
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- UNITS:
- KIT
$195.99 -
EPI Clutch Rebuild Kit WE210155
EPI
$219.99Primary clutch wear compounds over time, leading to power loss, inconsistent engagement, and premature failure. This comprehensive rebuild kit provides all the essential components needed to restore your clutch to OEM specifications without sourcing...WE210155- SKU:
- WE210155
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- TYPE:
- CLUTCH
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REBUILD KIT
$219.99 -
EPI Clutch Rebuild Kit WE210165
EPI
$219.99A worn or slipping primary clutch costs you power delivery and consistency on the track or trail. The EPI Clutch Rebuild Kit WE210165 gives you everything needed for a complete, professional-grade rebuild—eliminating guesswork and ensuring your clutch...WE210165- SKU:
- WE210165
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CLUTCH
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$219.99 -
EPI Clutch Rebuild Kit WE210175
EPI
$259.99Primary clutch wear is inevitable, but worn bushings, pins, and rollers directly compromise engagement precision and power delivery. This complete rebuild kit restores your clutch to OEM specifications, eliminating slop and inconsistent shifts that cost...WE210175- SKU:
- WE210175
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- TYPE:
- CLUTCH
$259.99 -
EPI Clutch Rebuild Kit WE210180
EPI
$259.99Primary clutch wear is one of the most common performance killers in high-performance applications—slippage, inconsistent engagement, and power loss compound quickly once internal components degrade. The EPI Clutch Rebuild Kit WE210180 gives you...WE210180- SKU:
- WE210180
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- TYPE:
- CLUTCH
- UNITS:
- KIT
$259.99 -
EPI Roller Weights WE241012
EPI
$64.99CVT transmission performance hinges on precise belt and pulley engagement, and the EPI Roller Weights WE241012 give you direct control over upshift timing and peak RPM thresholds. By fine-tuning the centrifugal weights in your variator, you can optimize...WE241012- SKU:
- WE241012
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- CLUTCH
- RIDING STYLE:
- ATV
- UNITS:
- 8 PACK
- PRODUCT NAME:
- WEIGHT
- RIDING STYLE:
- UTV
- STYLE:
- ROLLER
$64.99Qty in Cart: 0Quantity:Price:$64.99Subtotal: -
EPI Roller Weights WE241016
EPI
$64.99Roller weight tuning directly controls your CVT's upshift points and peak RPM delivery—critical variables for extracting maximum power and optimizing power band characteristics. Whether you're chasing track performance or fine-tuning street behavior, the...WE241016- SKU:
- WE241016
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- UTV
- TYPE:
- CLUTCH
- UNITS:
- 8 PACK
- STYLE:
- ROLLER
- PRODUCT NAME:
- WEIGHT
- RIDING STYLE:
- ATV
$64.99 -
EPI Roller Weights WE241020
EPI
$64.99CVT transmission tuning demands precision—and the EPI Roller Weights WE241020 deliver exactly that. By fine-tuning your upshift behavior and peak RPM engagement, these weights optimize the balance between acceleration and top-end performance. Whether...WE241020- SKU:
- WE241020
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STYLE:
- ROLLER
- RIDING STYLE:
- ATV
- UNITS:
- 8 PACK
- PRODUCT NAME:
- WEIGHT
- RIDING STYLE:
- UTV
- TYPE:
- CLUTCH
$64.99 -
EPI Secondary Spring - Yellow CATV12
EPI
$32.99Fine-tuning your CVT transmission's shift characteristics requires a secondary spring that delivers precision and consistency—and that's exactly what the EPI Secondary Spring Yellow (CATV12) provides. Whether you're dialing in shift rate, adjusting side...CATV12- SKU:
- CATV12
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COMPRESSED LOAD:
- 66 KG (145 LB)
- RIDING STYLE:
- UTV
- COMPRESSED LOAD METRIC:
- 66 KG
- INSTALLED LENGTH IMPERIAL:
- 3.5'
- INSTALLED LOAD IMPERIAL:
- 99 LB
- INSTALLED LOAD METRIC:
- 45 KG
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH
- COLOR/FINISH:
- YELLOW
- COMPRESSED LENGTH:
- 32 MM (1,25')
- INSTALLED LENGTH METRIC:
- 89 MM
- MATERIAL:
- CHROME SILICON
- COMPRESSED LENGTH IMPERIAL:
- 1.25'
- COMPRESSED LENGTH METRIC:
- 32 MM
- COMPRESSED LOAD IMPERIAL:
- 145 LB
- INSTALLED LENGTH:
- 89 MM (3,5')
- INSTALLED LOAD:
- 45 KG (99 LB)
- PRODUCT NAME:
- SPRING
- STYLE:
- SECONDARY (DRIVEN)
- UNITS:
- EACH
$32.99Qty in Cart: 0Quantity:Price:$32.99Subtotal: -
EPI Primary Spring DRS12
EPI
$32.99Dial in your clutch engagement point and peak RPM threshold with precision-grade adjustability—no more settling for one-size-fits-all clutch behavior. The DRS12 lets you customize your power delivery to match your specific racing conditions, whether...DRS12- SKU:
- DRS12
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- CLUTCH
- COMPRESSED LOAD IMPERIAL:
- 140 LB
- COMPRESSED LOAD METRIC:
- 63.5 KG
- PRODUCT NAME:
- SPRING
- COLOR/FINISH:
- RED
- INSTALLED LOAD METRIC:
- 16 KG
- MATERIAL:
- CHROME SILICON
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- COMPRESSED LENGTH IMPERIAL:
- 1.25'
- INSTALLED LENGTH IMPERIAL:
- 2.5'
- INSTALLED LOAD IMPERIAL:
- 35 LB
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$32.99Qty in Cart: 0Quantity:Price:$32.99Subtotal: -
EPI Primary Spring DRS13
EPI
$32.99Dial in your clutch engagement point and peak RPM with precision that matches your exact racing demands. The EPI Primary Spring DRS13 gives you the fine-tuning control that separates competitive lap times from the rest of the field. Built from high...DRS13- SKU:
- DRS13
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- CHROME SILICON
- COMPRESSED LOAD METRIC:
- 63.5 KG
- PRODUCT NAME:
- SPRING
- COMPRESSED LENGTH IMPERIAL:
- 1.25'
- INSTALLED LENGTH IMPERIAL:
- 2.5'
- INSTALLED LOAD IMPERIAL:
- 75 LB
- INSTALLED LOAD METRIC:
- 34 KG
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- COMPRESSED LOAD IMPERIAL:
- 140 LB
- RIDING STYLE:
- UTV
- STYLE:
- PRIMARY (DRIVE)
- TYPE:
- CLUTCH
$32.99Qty in Cart: 0Quantity:Price:$32.99Subtotal: -
EPI Weight Bushing - 12 Pack WB12
EPI
$91.99Worn bushings compromise suspension geometry, steering response, and overall chassis stability—issues that compound over time and can become safety concerns on track or street. The EPI Weight Bushing 12-Pack (WB12) provides a cost-effective solution for...11400079- SKU:
- 11400079
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- BUSHING
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- CLUTCH WEIGHT
- RIDING STYLE:
- ATV
- UNITS:
- 12 PACK
$91.99
