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
-
Wrench Rabbit Arctic Cat DVX 400 2005-2008 Complete Engine Rebuild Kit WR101-061
WRENCH RABBIT
$1,132.95When your Arctic Cat DVX 400's engine starts showing wear, a piecemeal approach to rebuilding wastes time and invites compatibility issues. The Wrench Rabbit Complete Engine Rebuild Kit eliminates guesswork by pairing factory-engineered components—from...09030999- SKU:
- 09030999
- Availability:
- Ships Same Business Day
- Weight:
- 16.45 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- PRODUCT NAME:
- REBUILD KIT
$1,132.95 -
WSM Top-End Rebuild Kit - Platinum Series - Standard 54-306-10P
WSM
$150.19A top-end rebuild is critical for restoring compression, sealing integrity, and peak horsepower in any high-performance engine. The WSM Platinum Series kit delivers OEM-quality components engineered to tight tolerances, ensuring your rebuild meets...09030756- SKU:
- 09030756
- Availability:
- Ships Same Business Day
- Weight:
- 1.56 LBS
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 83.00 MM
- PISTON MATERIAL:
- ALUMINUM
- TYPE:
- TOP END
- MODEL:
- PLATINUM SERIES
- PISTON SIZE METRIC:
- STANDARD
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$150.19 -
Wiseco Engine Rebuild Kit for Yamaha Banshee 1987-2006 PWR100-640
WISECO
$1,069.95When your Banshee's engine has logged serious hours, a complete rebuild is the only path to restoring factory reliability and performance. The Wiseco Engine Rebuild Kit PWR100-640 delivers every critical component you need—crankshaft, rod assembly,...09031486- SKU:
- 09031486
- Availability:
- Ships Same Business Day
- Weight:
- 17.35 LBS
- BORE SIZE METRIC:
- 64.00 MM
- DISPLACEMENT:
- 350 CC
- PRODUCT NAME:
- REBUILD KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- FEATURES:
- PROLITE® PISTON
- MODEL:
- GARAGE BUDDY
- UNITS:
- KIT
- OVERBORE METRIC:
- STANDARD
$1,069.95Qty in Cart: 0Quantity:Price:$1,069.95Subtotal: -
Wiseco Engine Rebuild Kit for Yamaha YFZ350 Banshee 1987-2006 PWR100-645
WISECO
$1,094.95When your Banshee's engine reaches the end of its service life, a quality rebuild kit is the difference between a reliable machine and a money pit. The Wiseco PWR100-645 delivers complete top and bottom-end components engineered to OEM specifications, so...09031487- SKU:
- 09031487
- Availability:
- Ships Same Business Day
- Weight:
- 17.40 LBS
- DISPLACEMENT:
- 350 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- GARAGE BUDDY
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- BORE SIZE METRIC:
- 64.50 MM
- FEATURES:
- PROLITE® PISTON
- OVERBORE METRIC:
- +0.50 MM
$1,094.95 -
Wiseco Engine Rebuild Kit for Yamaha YFZ350 Banshee 1987-2006 PWR100-650
WISECO
$1,094.95Your Banshee's engine is the heart of its performance—and a worn crankshaft, compromised bearings, or degraded seals will kill both power and reliability. The Wiseco Engine Rebuild Kit gives you everything needed for a complete top and bottom-end...09031488- SKU:
- 09031488
- Availability:
- Ships Same Business Day
- Weight:
- 17.48 LBS
- BORE SIZE METRIC:
- 65.00 MM
- DISPLACEMENT:
- 350 CC
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- GARAGE BUDDY
- RIDING STYLE:
- ATV
- OVERBORE METRIC:
- +1.00 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- UNITS:
- KIT
- FEATURES:
- PROLITE® PISTON
$1,094.95 -
Wiseco Engine Rebuild Kit Yamaha YFZ350 Banshee 1987-2006 PWR100-655
WISECO
$1,129.95Engine wear is inevitable on the trail, but catastrophic failure isn't. The Wiseco Engine Rebuild Kit gives you factory-engineered components to restore your Banshee's compression, reliability, and throttle response—whether you're rebuilding after...09031489- SKU:
- 09031489
- Availability:
- Ships Same Business Day
- Weight:
- 17.28 LBS
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 65.50 MM
- DISPLACEMENT:
- 350 CC
- FEATURES:
- PROLITE® PISTON
- MODEL:
- GARAGE BUDDY
- OVERBORE METRIC:
- +1.50 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$1,129.95 -
Wiseco Engine Rebuild Kit Yamaha YFZ350 Banshee 1987-2006 PWR100-660
WISECO
$1,114.95If you're running a Banshee hard, an engine rebuild isn't a question of if—it's when. The Wiseco PWR100-660 gives you everything needed for a complete top and bottom-end refresh, with OEM-grade components and precision engineering that'll get your...09031490- SKU:
- 09031490
- Availability:
- Ships Same Business Day
- Weight:
- 17.50 LBS
- BORE SIZE METRIC:
- 66.00 MM
- DISPLACEMENT:
- 350 CC
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 2-STROKE
- TYPE:
- ENGINE
- MODEL:
- GARAGE BUDDY
- UNITS:
- KIT
- FEATURES:
- PROLITE® PISTON
$1,114.95 -
Wiseco Engine Rebuild Kit for Yamaha YFS200 Blaster 1988-2006 PWR105-660
WISECO
$534.95If your Yamaha Blaster's engine has logged serious trail hours, an engine rebuild is the most cost-effective way to restore lost compression, oil pressure, and overall reliability. The Wiseco PWR105-660 kit eliminates the guesswork by bundling every...09031492- SKU:
- 09031492
- Availability:
- Ships Same Business Day
- Weight:
- 10.35 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- BORE SIZE METRIC:
- 66.00 MM
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 200 CC
- FEATURES:
- PROLITE® PISTON
- MODEL:
- GARAGE BUDDY
- OVERBORE METRIC:
- STANDARD
- UNITS:
- KIT
$534.95 -
Wiseco Engine Rebuild Kit for 1988-2006 Yamaha YFS200 Blaster 66.50mm PWR105-665
WISECO
$534.95When your Yamaha Blaster's engine reaches the end of its service life, a complete rebuild with OEM-quality components is the most cost-effective path to restoring full performance and reliability. The Wiseco PWR105-665 kit eliminates the guesswork by...09031493- SKU:
- 09031493
- Availability:
- Ships Same Business Day
- Weight:
- 10.50 LBS
- OVERBORE METRIC:
- +0.50 MM
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- DISPLACEMENT:
- 200 CC
- FEATURES:
- PROLITE® PISTON
- MODEL:
- GARAGE BUDDY
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 66.50 MM
$534.95Qty in Cart: 0Quantity:Price:$534.95Subtotal: -
Wiseco Engine Rebuild Kit Yamaha YFS200 Blaster 1988-2006 PWR105-670
WISECO
$534.95When your Yamaha Blaster's engine shows signs of wear—whether from years of trail riding or track abuse—a complete rebuild is your most cost-effective path to restored performance and reliability. The Wiseco Engine Rebuild Kit delivers all top and...09031494- SKU:
- 09031494
- Availability:
- Ships Same Business Day
- Weight:
- 10.25 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- ATV
- DISPLACEMENT:
- 200 CC
- FEATURES:
- PROLITE® PISTON
- OVERBORE METRIC:
- +1.00 MM
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE METRIC:
- 67.00 MM
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- GARAGE BUDDY
- UNITS:
- KIT
$534.95Qty in Cart: 0Quantity:Price:$534.95Subtotal: -
Wiseco Engine Rebuild Kit for Honda TRX400EX 2005-2008 PWR131B-860
WISECO
$809.95When your Honda TRX400EX's engine shows signs of wear—loss of compression, increased blow-by, or declining power delivery—a complete rebuild restores it to factory specifications and reliability. The Wiseco Engine Rebuild Kit PWR131B-860 supplies every...09031515- SKU:
- 09031515
- Availability:
- Ships Same Business Day
- Weight:
- 16.40 LBS
$809.95Qty in Cart: 0Quantity:Price:$809.95Subtotal: -
Wrench Rabbit Complete Engine Rebuild Kit for 2019-2020 Polaris RZR XP 1000 WR00053
WRENCH RABBIT
$1,994.95Engine wear and internal component degradation will eventually compromise power delivery and reliability—a complete rebuild addresses this before catastrophic failure occurs. The Wrench Rabbit Engine Kit for your 2019-2020 Polaris RZR XP 1000 bundles all...09031657- SKU:
- 09031657
- Availability:
- Ships Same Business Day
- Weight:
- 31.80 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
$1,994.95 -
Wrench Rabbit Engine Rebuild Kit for Polaris RZR 1000 2016-2017 WR00054
WRENCH RABBIT
$1,994.95When your Polaris RZR 1000's engine shows signs of wear—loss of compression, increased blow-by, or metal debris in the oil—a full rebuild is the most cost-effective path to restoring factory performance. The Wrench Rabbit WR00054 kit bundles all the...09031658- SKU:
- 09031658
- Availability:
- Ships Same Business Day
- Weight:
- 27.90 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- UNITS:
- KIT
- RIDING STYLE:
- UTV
$1,994.95Qty in Cart: 0Quantity:Price:$1,994.95Subtotal: -
Wrench Rabbit Engine Rebuild Kit for 2019 Polaris Ranger XP 1000 EPS WR00055
WRENCH RABBIT
$1,994.95When your Polaris Ranger XP 1000 EPS engine reaches the end of its service life, a complete rebuild is often more cost-effective than replacement. The Wrench Rabbit WR00055 Engine Rebuild Kit supplies all the internal components you need to restore your...09031659- SKU:
- 09031659
- Availability:
- Ships Same Business Day
- Weight:
- 25.00 LBS
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$1,994.95Qty in Cart: 0Quantity:Price:$1,994.95Subtotal: -
WSM Top End Kit - .75mm - Kawasaki 54-255-13
WSM
$125.25A worn or damaged top end directly impacts engine compression, power delivery, and fuel efficiency—making this comprehensive piston kit essential for restoring your Kawasaki to factory performance standards. WSM's precision-engineered components ensure...09031384- SKU:
- 09031384
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- OVERBORE METRIC:
- +0.75 MM
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
$125.25Qty in Cart: 0Quantity:Price:$125.25Subtotal: -
WSM Top End Kit - 1mm - Kawasaki 54-255-14
WSM
$134.15A top-end rebuild is critical maintenance for any 4-stroke engine pushing serious hours or performance demands. The WSM Top End Kit delivers everything you need for a complete piston assembly replacement in one package, eliminating the hassle of sourcing...09031385- SKU:
- 09031385
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- OVERBORE METRIC:
- +1.00 MM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$134.15 -
WSM Top End Kit - Standard - Kawasaki 54-255-20
WSM
$139.34A worn or damaged top end compromises engine efficiency, power output, and reliability. The WSM Top End Kit delivers OEM-quality components engineered to restore your engine to factory specifications or serve as a foundation for aggressive performance...09031386- SKU:
- 09031386
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- OVERBORE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
$139.34Qty in Cart: 0Quantity:Price:$139.34Subtotal: -
WSM Top End Kit - .5mm - Kawasaki 54-255-22
WSM
$130.10A properly functioning top end is critical to maintaining peak engine performance and reliability in your 4-stroke Kawasaki. This WSM Top End Kit delivers all the precision components you need for a complete rebuild, eliminating the risk of using...09031388- SKU:
- 09031388
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- OVERBORE METRIC:
- +0.50 MM
- PRODUCT NAME:
- PISTON KIT
$130.10 -
WSM Top End Kit - 1mm - Kawasaki 54-255-24
WSM
$130.10A worn top end compromises your engine's compression ratio, power delivery, and overall reliability—especially if you're pushing hard on the track or trail. The WSM Top End Kit delivers OEM-quality components in one complete package, eliminating the...09031390- SKU:
- 09031390
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- OVERBORE METRIC:
- +1.00 MM
- PRODUCT NAME:
- PISTON KIT
$130.10 -
WSM Top End Kit - Standard - Kawasaki 54-257-10
WSM
$146.14A worn or damaged top end compromises engine efficiency, power delivery, and reliability—especially in racing applications where precision is non-negotiable. The WSM Top End Kit gives you OEM-quality components engineered to restore your Kawasaki...09031391- SKU:
- 09031391
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- KIT
- OVERBORE METRIC:
- STANDARD
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- PISTON KIT
$146.14Qty in Cart: 0Quantity:Price:$146.14Subtotal:
