ATV/UTV Engine Rebuild Kits
ATV/UTV Engine Rebuild Kits at JJ Motorsports
Revive your ATV/UTV with complete engine rebuild kits from JJ Motorsports, featuring everything you need for a full top-to-bottom refresh on Yamaha Blaster, Polaris, Arctic Cat, Kawasaki, and Suzuki models. These all-in-one kits include pistons, gaskets, bearings, seals, and more for fast, reliable rebuilds and maximum performance.
Shop Wrench Rabbit and Wiseco rebuild kits for race-proven quality. Explore related categories such as ATV/UTV engine for individual components, or ATV/UTV for cams and exhaust to finish your build and ride with total confidence across all conditions, from high-speed dunes to technical trails.
Top ATV/UTV Engine Rebuild Kits
- Wrench Rabbit Engine Kit Arctic Cat/Kawasaki/Suzuki WR101-061 – Complete rebuild kit with Vertex piston, gaskets, bearings, and seals; fits multiple 400-450cc models.
- Wiseco Engine Kit Blaster 1988-2006 PWR105-665 – Full kit for Yamaha Blaster; forged piston, gaskets, crank bearings, and seals for legendary 2-stroke power.
- Wrench Rabbit Engine Kit Polaris WR00054 – Vertex-based complete kit for Polaris 500/570; includes piston, bearings, gaskets, and seals.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Wrench Rabbit Complete Engine Rebuild Kit for Yamaha YFZ350 Banshee 1987-2006 WR101-077
WRENCH RABBIT
$1,288.95Revitalize your Yamaha with the WRENCH RABBIT Engine Kit, a comprehensive solution designed for a seamless and professional engine rebuild. This all-in-one kit includes high-quality components that ensure optimal performance and durability, making it the...09031012- SKU:
- 09031012
- Availability:
- Ships Same Business Day
- Weight:
- 20.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
$1,288.95 -
Wrench Rabbit Yamaha YFZ450 2004-2005 Engine Rebuild Kit WR101-078
WRENCH RABBIT
$1,132.95Revitalize your Yamaha engine with the WRENCH RABBIT Engine Kit, designed for a seamless and professional rebuild. This comprehensive kit includes everything you need to restore performance and reliability, ensuring your bike runs like new. Complete...09031013- SKU:
- 09031013
- Availability:
- Ships Same Business Day
- Weight:
- 15.90 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$1,132.95 -
Wrench Rabbit Complete Engine Rebuild Kit Yamaha YFZ450 2006-2009 WR101-079
WRENCH RABBIT
$1,132.95Revitalize your Yamaha WR with the WRENCH RABBIT Engine Kit, a comprehensive solution designed for a seamless and professional rebuild. This all-in-one kit includes high-quality components that ensure durability and performance, making it the perfect...09031014- SKU:
- 09031014
- Availability:
- Ships Same Business Day
- Weight:
- 16.00 LBS
- UNITS:
- KIT
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
$1,132.95 -
Wrench Rabbit Complete Engine Rebuild Kit for Yamaha YFM700R Raptor 2006-2014 WR101-135
WRENCH RABBIT
$1,315.95Revitalize your Yamaha WR101-135 with the WRENCH RABBIT Engine Kit, designed for a comprehensive and professional-grade rebuild. This all-inclusive package ensures you have everything you need for optimal performance and reliability, featuring...09031050- SKU:
- 09031050
- Availability:
- Ships Same Business Day
- Weight:
- 25.20 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$1,315.95 -
Wrench Rabbit Complete Engine Rebuild Kit for Yamaha YFM700 Grizzly 2007-2013 WR101-136
WRENCH RABBIT
$1,381.95Revitalize your Yamaha WR101-136 with the WRENCH RABBIT Engine Kit, designed for enthusiasts seeking a comprehensive solution for a professional-grade rebuild. This all-in-one kit includes high-quality components to ensure your engine performs at its...09031051- SKU:
- 09031051
- Availability:
- Ships Same Business Day
- Weight:
- 25.70 LBS
- UNITS:
- KIT
- FEATURES:
- STANDARD COMPRESSION PISTON
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
$1,381.95Qty in Cart: 0Quantity:Price:$1,381.95Subtotal: -
Wrench Rabbit Engine Kit Yamaha YFZ350 Banshee 1987-2006 WR101-077
WRENCH RABBIT
$1,249.95Revitalize your Yamaha WR101-137 with the WRENCH RABBIT Engine Kit, designed for those who demand top performance and reliability. This all-in-one kit includes everything you need for a complete engine rebuild, ensuring your bike runs like new. With...09031052- SKU:
- 09031052
- Availability:
- Ships Same Business Day
- Weight:
- 23.45 LBS
- MODEL:
- WRENCH RABBIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- FEATURES:
- STANDARD COMPRESSION PISTON
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
$1,249.95 -
Wrench Rabbit Complete Engine Rebuild Kit for Kawasaki KFX450R 2008-2014 WR101-138
WRENCH RABBIT
$1,132.95Revitalize your Kawasaki WR101-138 with the WRENCH RABBIT Engine Kit, a comprehensive solution designed for a seamless and professional rebuild. This all-in-one kit includes high-quality components to ensure your engine performs at its best, making it...09031053- SKU:
- 09031053
- Availability:
- Ships Same Business Day
- Weight:
- 23.60 LBS
- UNITS:
- KIT
- FEATURES:
- STANDARD COMPRESSION PISTON
- MODEL:
- WRENCH RABBIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
$1,132.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2010-2011 Yamaha YFZ450X WR101-147
WRENCH RABBIT
$1,249.95Revitalize your Yamaha WR101-147 with the WRENCH RABBIT Engine Kit, designed for a seamless and professional rebuild. This comprehensive kit includes everything you need to restore your engine to peak performance, ensuring durability and reliability on...09031054- SKU:
- 09031054
- Availability:
- Ships Same Business Day
- Weight:
- 16.90 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$1,249.95 -
Wrench Rabbit Engine Rebuild Kit for 2018 Polaris RZR XP 1000 EPS WR00051
WRENCH RABBIT
$1,994.95The WRENCH RABBIT Engine Kit for Polaris WR00051 provides everything you need for a comprehensive engine rebuild. Engineered for durability and performance, this kit ensures your engine runs smoothly and efficiently, giving your vehicle a new lease on...09031655- SKU:
- 09031655
- Availability:
- Ships Same Business Day
- Weight:
- 32.50 LBS
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$1,994.95 -
Wrench Rabbit Engine Rebuild Kit for 2016-2017 Polaris RZR XP 1000 WR00050
WRENCH RABBIT
$1,994.95Revitalize your Polaris engine with the WRENCH RABBIT Engine Kit WR00050. This comprehensive rebuild kit is designed to restore performance and reliability, ensuring your engine runs smoothly for years to come. Each kit includes high-quality components...09031654- SKU:
- 09031654
- Availability:
- Ships Same Business Day
- Weight:
- 31.20 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$1,994.95 -
Wrench Rabbit Yamaha YFS200 Blaster 1988-1997 Complete Engine Rebuild Kit WR101-155
WRENCH RABBIT
$788.95Revitalize your Yamaha WR101-155 with the WRENCH RABBIT Engine Kit, designed for those seeking a comprehensive and professional rebuild solution. This all-in-one kit includes high-quality components that ensure optimal performance and durability, making...09031055- SKU:
- 09031055
- Availability:
- Ships Same Business Day
- Weight:
- 11.10 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$788.95 -
WSM Top End Kit - .75mm - Honda 54-230-13
WSM
$177.49Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031364- SKU:
- 09031364
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- PRODUCT NAME:
- PISTON KIT
- OVERBORE METRIC:
- +0.75 MM
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$177.49 -
WSM Top End Kit - .25mm - Honda 54-231-11
WSM
$178.77Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031367- SKU:
- 09031367
- Availability:
- Ships Same Business Day
- Weight:
- 1.90 LBS
- PRODUCT NAME:
- PISTON KIT
- OVERBORE METRIC:
- +0.25 MM
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$178.77Qty in Cart: 0Quantity:Price:$178.77Subtotal: -
WSM Top End Kit - .5mm - Honda 54-231-12
WSM
$191.47Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031368- SKU:
- 09031368
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- OVERBORE METRIC:
- +0.50 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$191.47 -
WSM Top End Kit - .5mm - Kawasaki 54-250-12
WSM
$134.15Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031373- SKU:
- 09031373
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- RIDING STYLE:
- ATV
- OVERBORE METRIC:
- +0.50 MM
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
$134.15 -
WSM Top End Kit - Arctic Cat - Standard 54-254-10
WSM
$229.40Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031466- SKU:
- 09031466
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- OVERBORE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
$229.40Qty in Cart: 0Quantity:Price:$229.40Subtotal: -
WSM Top End Kit - .5mm - Suzuki/Kawasaki 400 54-254-12
WSM
$214.20Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031468- SKU:
- 09031468
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- PRODUCT NAME:
- PISTON KIT
- OVERBORE METRIC:
- +0.50 MM
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$214.20 -
WSM Top End Kit - .75mm - Suzuki/Kawasaki 400 54-254-13
WSM
$214.20Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031469- SKU:
- 09031469
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- PISTON KIT
- OVERBORE METRIC:
- +0.75 MM
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$214.20 -
WSM Top End Kit - 1mm - Suzuki/Kawasaki 400 54-254-14
WSM
$214.20Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031470- SKU:
- 09031470
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- OVERBORE METRIC:
- +1.00 MM
- RIDING STYLE:
- ATV
$214.20 -
WSM Top End Kit - Standard - Honda 200 54-222-10
WSM
$93.40Top-quality piston kit, Includes pistons, rings, pins, clips, needle bearings, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models09031471- SKU:
- 09031471
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- PISTON KIT
- OVERBORE METRIC:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$93.40Qty in Cart: 0Quantity:Price:$93.40Subtotal:
