ATV/UTV Engine
ATV/UTV Engine Parts at JJ Motorsports
Maximize your ATV or UTV's engine life with top-quality components from JJ Motorsports. Our selection includes gasket kits, connecting rods, water pump rebuild kits, and timing plugs designed for reliable sealing, strength, and easy installation in demanding off-road conditions. Compatible with Polaris, Can-Am, Honda, and more, these parts ensure peak power, reduced wear, and efficient operation for trail riding or utility work.
Shop trusted brands like Moose Racing for rebuild kits and Winderosa for gaskets. Explore related categories such as ATV/UTV air and fuel for intake upgrades or ATV/UTV drivetrain for transmission enhancements.
Top ATV/UTV Engine Products
- MOOSE UTILITY Clutch Cover Gasket Seal 500-1265-PU – Durable seal for clutch cover protection.
- WINDEROSA Standard Bore Gasket Kit 810585 – Complete kit for engine sealing and rebuilds.
- WORKS CONNECTION Engine Timing Plug 24-590 – Precision plug for accurate timing adjustments.
- MOOSE RACING Connecting Rod MR5026 – High-strength rod for engine durability.
- MOOSE RACING Water Pump Rebuild Kit 821865 – Comprehensive kit for water pump maintenance.
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
-
Wrench Rabbit Engine Rebuild Kit for Polaris RZR 900 2018-2019 WR00010
WRENCH RABBIT
$1,994.95Engine wear and internal component degradation compromise both performance and reliability—a complete rebuild restores your Polaris RZR 900 to factory specifications and beyond. The Wrench Rabbit...09031636- SKU:
- 09031636
- Availability:
- Ships Same Business Day
- Weight:
- 25.00 LBS
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- ATV
$1,994.95 -
Wrench Rabbit Complete Engine Rebuild Kit for 2015 Polaris RZR 900 WR00042
WRENCH RABBIT
$2,094.70When your Polaris RZR 900 engine has logged serious hours, a complete rebuild is the only way to restore it to factory specifications and reclaim lost performance. The Wrench Rabbit WR00042 kit...09031646- SKU:
- 09031646
- Availability:
- Ships Same Business Day
- Weight:
- 27.90 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
$2,094.70 -
Wrench Rabbit Complete Engine Rebuild Kit for Polaris ACE 900 XC 2018-2019 WR00043
WRENCH RABBIT
$2,094.70Engine wear and internal damage compound over time, reducing power output and reliability on the trail or track. The Wrench Rabbit Complete Engine Rebuild Kit for your Polaris ACE 900 XC delivers all...09031647- SKU:
- 09031647
- Availability:
- Ships Same Business Day
- Weight:
- 27.70 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$2,094.70 -
Wrench Rabbit Polaris RZR XP 900 2011-2012 Engine Rebuild Kit WR00044
WRENCH RABBIT
$2,094.70When 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...09031648- SKU:
- 09031648
- Availability:
- Ships Same Business Day
- Weight:
- 28.15 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
- UNITS:
- KIT
$2,094.70 -
Wrench Rabbit Complete Engine Rebuild Kit for 2014 Polaris RZR 900 WR00045
WRENCH RABBIT
$2,094.70When 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...09031649- SKU:
- 09031649
- Availability:
- Ships Same Business Day
- Weight:
- 27.51 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- UTV
- TYPE:
- ENGINE
$2,094.70 -
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...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
$2,038.95Qty in Cart: 0Quantity:Price:$2,038.95Subtotal: -
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...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
$2,094.70Engine 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...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
$2,094.70 -
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...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...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
$1,711.95Qty in Cart: 0Quantity:Price:$1,711.95Subtotal: -
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...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
$1,711.95Qty in Cart: 0Quantity:Price:$1,711.95Subtotal: -
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...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...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
$1,711.95Qty in Cart: 0Quantity:Price:$1,711.95Subtotal: -
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...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...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...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
$895.95Qty in Cart: 0Quantity:Price:$895.95Subtotal: -
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...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...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...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...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
$725.95Qty in Cart: 0Quantity:Price:$725.95Subtotal:
