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
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MOOSE UTILITY Clutch Cover Gasket Seal 100-3001-PU
MOOSE UTILITY
$17.95A worn or damaged clutch cover gasket seal compromises your engine's integrity, leading to oil leaks, contamination, and potential drivetrain failure. The MOOSE UTILITY Clutch Cover Gasket Seal 100-3001-PU delivers a reliable, OEM-quality replacement...09351188- SKU:
- 09351188
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- UTV
- APPLICATION:
- CLUTCH COVER
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$17.95 -
WINDEROSA Standard Bore Gasket Kit 810585
WINDEROSA
$58.62When your cylinder is worn or damaged, you need a direct replacement that restores OEM performance without the downtime of custom machine work. The WINDEROSA Standard Bore Gasket Kit delivers a complete bolt-on cylinder assembly with matched...09341940- SKU:
- 09341940
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$58.62 -
WINDEROSA Standard Bore Gasket Kit 810868
WINDEROSA
$85.13When your cylinder shows signs of wear or you're rebuilding after hard use, a proper big-bore kit ensures you get back to peak performance without the downtime of custom machining. The WINDEROSA 810868 is a complete, bolt-on solution that pairs a Nickel...09341941- SKU:
- 09341941
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- MATERIAL:
- NICKEL SILICON CARBIDE
- STYLE:
- STANDARD
$85.13 -
WINDEROSA Standard Bore Gasket Kit 810881
WINDEROSA
$129.67When your engine takes a beating, a worn or damaged cylinder compromises compression, power delivery, and overall reliability. The WINDEROSA Standard Bore Gasket Kit 810881 delivers a complete, ready-to-install solution that restores your engine to...09343136- SKU:
- 09343136
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- MATERIAL:
- NICKEL SILICON CARBIDE
- STYLE:
- STANDARD
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$129.67 -
WINDEROSA Standard Bore Gasket Kit 810969
WINDEROSA
$98.17Engine wear compromises both performance and reliability—and a worn cylinder is often the culprit behind loss of compression, increased blow-by, and reduced power output. The WINDEROSA Standard Bore Gasket Kit 810969 restores your engine to factory...09344059- SKU:
- 09344059
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- STYLE:
- STANDARD
$98.17 -
WINDEROSA Standard Bore Gasket Kit 810970
WINDEROSA
$84.95When your engine demands a reliable refresh without the downtime of machine work, a complete cylinder kit eliminates guesswork and ensures matched components that work together from day one. The Winderosa Standard Bore Gasket Kit delivers OEM-quality...09344756- SKU:
- 09344756
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- PRODUCT NAME:
- GASKET KIT
$84.95 -
WORKS CONNECTION Engine Timing Plug 24-590
WORKS CONNECTION
$49.95Stock engine timing plugs are prone to corrosion and wear, compromising both aesthetics and reliability. The WORKS CONNECTION 24-590 replaces them with precision-machined aluminum components that resist degradation while delivering a professional...09500261- SKU:
- 09500261
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- ENGINE
- UNITS:
- SET
- MATERIAL:
- 6061 T-6 ALUMINUM
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLUE
- PRODUCT NAME:
- PLUG
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$49.95 -
MOOSE RACING Ring Set - For 94 mm Piston CPN2-3701
MOOSE RACING
$35.95A properly matched ring set is critical for maintaining compression, controlling blow-by, and maximizing power output in high-performance applications. The MOOSE RACING Ring Set for 94 mm pistons delivers precision-engineered sealing with the durability...09120246- SKU:
- 09120246
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- ATV
$35.95 -
MOOSE RACING Connecting Rod MR5026
MOOSE RACING
$474.95If you're building a high-performance engine that demands reliability under extreme conditions, the MOOSE RACING Connecting Rod MR5026 is engineered to deliver. Developed in partnership with CP-Carrillo, this rod combines precision manufacturing with...09230302- SKU:
- 09230302
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- MATERIAL:
- PROPRIETARY ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- HIGH PERFORMANCE
- PRODUCT NAME:
- CONNECTING ROD
$474.95Qty in Cart: 0Quantity:Price:$474.95Subtotal: -
MOOSE RACING Connecting Rod MR8820
MOOSE RACING
$474.95A connecting rod is only as strong as its metallurgy and manufacturing precision—two areas where the MOOSE RACING MR8820 excels. Built in partnership with CP-Carrillo and machined from an oversized forging, this rod delivers the strength-to-weight ratio...09230303- SKU:
- 09230303
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MATERIAL:
- PROPRIETARY ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD
- STYLE:
- HIGH PERFORMANCE
$474.95 -
MOOSE RACING Connecting Rod MR5496
MOOSE RACING
$474.95If you're building or rebuilding an engine that demands reliability under extreme conditions, the MOOSE RACING Connecting Rod MR5496 delivers the strength and precision required to handle high RPMs and forced induction without compromise. Engineered by...09230310- SKU:
- 09230310
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- RIDING STYLE:
- ATV
- MATERIAL:
- PROPRIETARY ALLOY
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD
- STYLE:
- HIGH PERFORMANCE
$474.95 -
MOOSE RACING Motor Gasket Kit with Seal - TRX400EX 811829
MOOSE RACING
$100.84A complete engine and transmission rebuild demands precision-fit gaskets and seals—OEM quality without the OEM price tag. This Moose Racing kit eliminates guesswork by including every gasket and seal needed for a full rebuild, letting you work with...M811829- SKU:
- M811829
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- TYPE:
- ENGINE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- TYPE:
- COMPLETE
$100.84 -
MOOSE RACING Water Pump Rebuild Kit 821865
MOOSE RACING
$54.49A failing water pump can sideline your engine faster than a blown head gasket—and rebuilding is far more cost-effective than replacement. This MOOSE RACING rebuild kit supplies every seal, bearing, and gasket your water pump needs to restore full cooling...09344846- SKU:
- 09344846
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$54.49 -
MOOSE RACING Water Pump Rebuild Kit 821868
MOOSE RACING
$66.00A failing water pump creates cascading engine damage that's costly and time-consuming to repair. This MOOSE RACING rebuild kit supplies every critical component needed to restore your water pump to OEM specifications without the expense of a full...09344847- SKU:
- 09344847
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$66.00 -
MOOSE RACING Water Pump Rebuild Kit 821869
MOOSE RACING
$42.11A failing water pump can strand you mid-season or worse—cause catastrophic engine damage on the track. This comprehensive MOOSE RACING rebuild kit gives you every gasket, seal, bearing, and O-ring needed to restore your water pump to OEM specifications...09344848- SKU:
- 09344848
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$42.11 -
MOOSE RACING Water Pump Rebuild Kit 821962
MOOSE RACING
$99.93A failing water pump compromises your engine's thermal management and can lead to catastrophic overheating—especially under racing conditions or sustained high-performance driving. The MOOSE RACING Water Pump Rebuild Kit 821962 gives you a complete,...09344863- SKU:
- 09344863
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$99.93 -
MOOSE RACING Top End Gasket Kit - Polaris 810970
MOOSE RACING
$83.03A top-end rebuild demands precision—gaskets and seals that won't compromise compression, durability, or cost. The MOOSE RACING Top End Gasket Kit delivers OEM-quality components at a fraction of the price, giving you the confidence to rebuild your engine...09344833- SKU:
- 09344833
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- UTV
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$83.03 -
MOOSE RACING Complete Motor Gasket Kit - Polaris 808907
MOOSE RACING
$146.32A complete engine and transmission rebuild demands gaskets and seals that won't compromise your work. The MOOSE RACING Complete Motor Gasket Kit eliminates the frustration of sourcing individual components separately, delivering every gasket, o-ring, and...09341011- SKU:
- 09341011
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- TYPE:
- COMPLETE
- TYPE:
- ENGINE
$146.32 -
MOOSE RACING Top End Gasket Kit - Kawasaki 810920
MOOSE RACING
$87.60A top-end rebuild demands gasket and seal integrity—any compromise risks oil leaks, combustion blow-by, and catastrophic engine failure. The MOOSE RACING Top End Gasket Kit delivers OEM-quality seals at a fraction of the cost, with every component...09341432- SKU:
- 09341432
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- TOP END
$87.60 -
MOOSE RACING Motor Gasket Kit with Seal - Can-Am 811956
MOOSE RACING
$269.96A complete engine and transmission rebuild demands precision-fit gaskets and seals—and OEM replacements typically drain your budget. The MOOSE RACING Motor Gasket Kit eliminates that compromise, delivering genuine OEM-quality seals at a fraction of...09343019- SKU:
- 09343019
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- COMPLETE
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
$269.96
