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 Polaris RZR XP 900 2011-2012 Engine Rebuild Kit WR00044
WRENCH RABBIT
$1,994.95When your Polaris RZR XP 900 engine shows signs of wear—loss of compression, increased blowby, or worn bearings—a full rebuild is the only way to restore it to factory specifications and reliability. The Wrench Rabbit WR00044 Engine Rebuild Kit supplies...09031648- SKU:
- 09031648
- Availability:
- Ships Same Business Day
- Weight:
- 28.15 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$1,994.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2014 Polaris RZR 900 WR00045
WRENCH RABBIT
$1,994.95When your Polaris RZR 900 engine shows wear—whether from high-mileage use, competition, or hard riding—a complete rebuild restores lost compression, seal integrity, and reliability. The Wrench Rabbit Complete Engine Rebuild Kit (WR00045) supplies every...09031649- SKU:
- 09031649
- Availability:
- Ships Same Business Day
- Weight:
- 27.51 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- UTV
- TYPE:
- ENGINE
$1,994.95 -
Wrench Rabbit Complete Engine Rebuild Kit for Polaris Sportsman 850 XP 2009-2013 WR00047
WRENCH RABBIT
$2,038.95When your Polaris Sportsman 850 XP's engine begins showing signs of wear—whether from high-mileage riding or aggressive use—a complete rebuild restores reliability and performance without the cost of engine replacement. The Wrench Rabbit WR00047 kit...09031651- SKU:
- 09031651
- Availability:
- Ships Same Business Day
- Weight:
- 29.55 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
$2,038.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2015-2018 Polaris Sportsman 850 SP WR00048
WRENCH RABBIT
$2,038.95When your Polaris Sportsman 850 SP engine shows signs of wear, a complete rebuild restores full performance and reliability without the cost of engine replacement. The Wrench Rabbit WR00048 kit eliminates guesswork by bundling every critical component...09031652- SKU:
- 09031652
- Availability:
- Ships Same Business Day
- Weight:
- 29.55 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- UNITS:
- KIT
- RIDING STYLE:
- UTV
$2,038.95 -
Wrench Rabbit Engine Kit for 2014-2015 Polaris RZR XP 1000 WR00049
WRENCH RABBIT
$1,994.95Engine rebuilds demand precision components and complete coverage—the Wrench Rabbit Engine Kit WR00049 delivers both for your 2014-2015 Polaris RZR XP 1000. This comprehensive kit eliminates the guesswork of sourcing individual rebuild parts by bundling...09031653- SKU:
- 09031653
- Availability:
- Ships Same Business Day
- Weight:
- 27.90 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
$1,994.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2008-2012 Kawasaki Teryx and 2005-2011 Brute Force WR101-164
WRENCH RABBIT
$1,711.95When your Kawasaki Teryx or Brute Force engine reaches the end of its service life, a quality rebuild kit is your most cost-effective path to factory-fresh performance. The Wrench Rabbit WR101-164 consolidates everything you need into a single package,...09031265- SKU:
- 09031265
- Availability:
- Ships Same Business Day
- Weight:
- 24.40 LBS
- RIDING STYLE:
- UTV
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$1,711.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2012-2014 Kawasaki KVF750 Brute Force 4x4i WR101-165
WRENCH RABBIT
$1,711.95Engine wear is inevitable, but a complete rebuild doesn't have to be complicated. The Wrench Rabbit Complete Engine Rebuild Kit for your 2012-2014 Kawasaki KVF750 Brute Force 4x4i consolidates every component you need—pistons, bearings, gaskets, and...09031266- SKU:
- 09031266
- Availability:
- Ships Same Business Day
- Weight:
- 24.50 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- UNITS:
- KIT
- MODEL:
- WRENCH RABBIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
$1,711.95 -
Wrench Rabbit Engine Rebuild Kit for 2013 Kawasaki KRF750 Teryx 4x4 WR101-166
WRENCH RABBIT
$1,711.95When your Kawasaki KRF750 Teryx 4x4 reaches high mileage or shows signs of internal wear, a complete engine rebuild is the most cost-effective path to restoring full performance and reliability. The Wrench Rabbit WR101-166 kit eliminates the guesswork by...09031267- SKU:
- 09031267
- Availability:
- Ships Same Business Day
- Weight:
- 24.50 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- FEATURES:
- STANDARD COMPRESSION PISTON
- RIDING STYLE:
- UTV
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
$1,711.95 -
Wrench Rabbit Engine Rebuild Kit Yamaha YFM660 Raptor 2001-2005 WR101-182
WRENCH RABBIT
$1,315.95An engine rebuild demands precision components and comprehensive coverage—shortcuts lead to premature failure and costly downtime. The Wrench Rabbit WR101-182 delivers everything you need in a single kit, eliminating the guesswork of sourcing individual...09031440- SKU:
- 09031440
- Availability:
- Ships Same Business Day
- Weight:
- 22.85 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- REBUILD KIT
$1,315.95 -
Wrench Rabbit Engine Rebuild Kit for Kawasaki KRF750 Teryx FI 4x4 2012 WR101-184
WRENCH RABBIT
$1,711.95The Wrench Rabbit Engine Rebuild Kit WR101-184 gives you everything needed to restore your Kawasaki KRF750 Teryx FI 4x4 to factory specifications or better—without hunting down individual components or risking incompatibility issues. Whether you're...09031441- SKU:
- 09031441
- Availability:
- Ships Same Business Day
- Weight:
- 24.70 LBS
- FEATURES:
- STANDARD COMPRESSION PISTON
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$1,711.95 -
Wrench Rabbit Engine Rebuild Kit for Polaris Ranger 800 2011-2014 WR101-185
WRENCH RABBIT
$1,579.95When your Polaris Ranger 800 engine shows signs of wear—loss of compression, metal fatigue, or reduced power output—a full rebuild is the most cost-effective path to restoring OEM performance. The Wrench Rabbit WR101-185 kit consolidates everything you...09031442- SKU:
- 09031442
- Availability:
- Ships Same Business Day
- Weight:
- 27.35 LBS
- ENGINE TYPE:
- 4-STROKE
- UNITS:
- KIT
- MODEL:
- WRENCH RABBIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- FEATURES:
- STANDARD COMPRESSION PISTON
- RIDING STYLE:
- UTV
$1,579.95 -
Wrench Rabbit Engine Rebuild Kit Honda TRX400 Sportrax 1999-2004 WR101-192
WRENCH RABBIT
$867.95When your Honda TRX400 Sportrax's engine is showing wear, a complete rebuild is the only way to restore reliability and performance without compromises. The Wrench Rabbit WR101-192 kit eliminates the guesswork by bundling OEM-quality components from...09031443- SKU:
- 09031443
- Availability:
- Ships Same Business Day
- Weight:
- 17.75 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- MODEL:
- WRENCH RABBIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- UNITS:
- KIT
- FEATURES:
- STANDARD COMPRESSION PISTON
$867.95 -
Wrench Rabbit Engine Rebuild Kit for Honda TRX400EX 1999-2004 WR101-193
WRENCH RABBIT
$895.95When your Honda TRX400EX engine has logged serious hours, a complete rebuild is the only way to restore factory performance and reliability. This Wrench Rabbit kit eliminates the guesswork by bundling every critical internal component you'll need—piston,...09031444- SKU:
- 09031444
- Availability:
- Ships Same Business Day
- Weight:
- 17.50 LBS
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- REBUILD KIT
- FEATURES:
- KIT CONTAINS +1 MM PISTON
- TYPE:
- ENGINE
$895.95 -
Wrench Rabbit Engine Rebuild Kit for Honda TRX400EX 1999-2004 WR101-194
WRENCH RABBIT
$867.95When your TRX400EX has logged serious hours, an engine rebuild restores lost compression, eliminates bearing wear, and returns your quad to factory performance specs. The Wrench Rabbit WR101-194 is a complete, factory-engineered kit that eliminates the...09031445- SKU:
- 09031445
- Availability:
- Ships Same Business Day
- Weight:
- 17.40 LBS
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- FEATURES:
- KIT CONTAINS +2 MM PISTON KIT
$867.95 -
Wrench Rabbit Engine Rebuild Kit for Honda TRX400EX 2005-2008 WR101-196
WRENCH RABBIT
$895.95When your TRX400EX's engine reaches the end of its service life, a complete rebuild using quality components is the only way to restore reliability and performance. The Wrench Rabbit WR101-196 delivers everything you need in one kit—pistons, crankshaft,...09031447- SKU:
- 09031447
- Availability:
- Ships Same Business Day
- Weight:
- 17.55 LBS
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- FEATURES:
- STANDARD COMPRESSION PISTON
- PRODUCT NAME:
- REBUILD KIT
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
$895.95 -
Wrench Rabbit Engine Rebuild Kit for 2001-2004 Kawasaki KX85 WR101-109
WRENCH RABBIT
$867.95A two-stroke engine rebuild demands precision components and complete coverage—missed seals and worn bearings are common failure points that compromise performance and longevity. The Wrench Rabbit WR101-198 kit eliminates guesswork by bundling...09031449- SKU:
- 09031449
- Availability:
- Ships Same Business Day
- Weight:
- 17.55 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- FEATURES:
- KIT CONTAINS +2 MM PISTON KIT
- UNITS:
- KIT
$867.95 -
Wrench Rabbit Engine Rebuild Kit Honda TRX400EX 2005-2008 WR101-199
WRENCH RABBIT
$725.95When your Honda TRX400EX engine shows signs of wear—loss of compression, increased blow-by, or rough running—a complete rebuild is the most cost-effective path to restored reliability and performance. The Wrench Rabbit WR101-199 kit consolidates all the...09031450- SKU:
- 09031450
- Availability:
- Ships Same Business Day
- Weight:
- 17.55 LBS
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
- FEATURES:
- KIT CONTAINS +3 MM PISTON
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$725.95 -
Wrench Rabbit Complete Engine Rebuild Kit for Yamaha YFS200 Blaster 1988-2006 WR101-200
WRENCH RABBIT
$788.95When your Yamaha YFS200 Blaster reaches the point where a rebuild is necessary, settling for a partial solution wastes time and money. The Wrench Rabbit WR101-200 eliminates guesswork by bundling every critical component—pistons, crank, bearings, seals,...09031451- SKU:
- 09031451
- Availability:
- Ships Same Business Day
- Weight:
- 11.20 LBS
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- FEATURES:
- KIT CONTAINS +0.5 MM PISTON
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
$788.95 -
Wrench Rabbit Engine Rebuild Kit for Yamaha YFS200 Blaster 1988-2006 WR101-201
WRENCH RABBIT
$788.95When your Yamaha YFS200 Blaster shows signs of wear—loss of compression, rough idle, or metal debris in the oil—a full engine rebuild is your most cost-effective path to reliability. The Wrench Rabbit WR101-201 eliminates guesswork by bundling...09031452- SKU:
- 09031452
- Availability:
- Ships Same Business Day
- Weight:
- 11.25 LBS
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- WRENCH RABBIT
- UNITS:
- KIT
- FEATURES:
- KIT CONTAINS +1 MM PISTON
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
$788.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2010-2019 Honda CRF150R WR101-202
WRENCH RABBIT
$788.95When your CRF150R's engine reaches the end of its service life, a quality rebuild kit makes the difference between a backyard gamble and a reliable restoration. The Wrench Rabbit WR101-202 consolidates every critical component into one comprehensive...09031453- SKU:
- 09031453
- Availability:
- Ships Same Business Day
- Weight:
- 11.30 LBS
- FEATURES:
- KIT CONTAINS +1.5 MM PISTON KIT
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- ENGINE TYPE:
- 2-STROKE
- MODEL:
- WRENCH RABBIT
- RIDING STYLE:
- ATV
$788.95
