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 RACING Connecting Rod MR5025
MOOSE RACING
$474.95Stock connecting rods impose limits on engine response and reliability at higher RPMs—this Moose Racing unit eliminates both constraints. Machined from a proprietary forging with chrome, nickel, moly, and vanadium content, the MR5025 delivers the...09230301- SKU:
- 09230301
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- STYLE:
- HIGH PERFORMANCE
- MATERIAL:
- PROPRIETARY ALLOY
- UNITS:
- EACH
- PRODUCT NAME:
- CONNECTING ROD
- RIDING STYLE:
- OFF-ROAD
$474.95 -
MOOSE RACING Cylinder - Standard - Polaris MSECW60007
MOOSE RACING
$644.95When your OEM cylinder reaches the end of its service life, you need a direct replacement that meets factory specifications without compromise. The MOOSE RACING Cylinder delivers stock performance characteristics with the durability to handle repeated...09310965- SKU:
- 09310965
- Availability:
- Ships Same Business Day
- Weight:
- 7.25 LBS
- COLOR/FINISH:
- GRAY
- DISPLACEMENT:
- 1000 CC
- RIDING STYLE:
- ATV
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- BORE SIZE METRIC:
- STANDARD
- CYLINDER DIAMETER:
- 93,00 MM
- ENGINE TYPE:
- 4-CYCLE
- MATERIAL:
- CAST
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- UTV
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- MATERIAL:
- ALUMINUM
- UNITS:
- EACH
$644.95 -
MOOSE RACING Cylinder - Standard MSE20004
MOOSE RACING
$500.95A worn or damaged cylinder directly compromises compression, power delivery, and engine reliability. The MOOSE RACING MSE20004 restores your engine to OEM specifications with a precision-machined bore and advanced plating that outlasts the...09310453- SKU:
- 09310453
- Availability:
- Ships Same Business Day
- Weight:
- 6.73 LBS
- MATERIAL:
- CAST
- PRODUCT NAME:
- CYLINDER
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$500.95 -
MOOSE RACING Ring Set - For 102 mm Piston CPN-4016
MOOSE RACING
$35.95A quality ring set is fundamental to engine reliability and power output—it seals combustion pressure, manages oil consumption, and directly impacts your engine's longevity. The MOOSE RACING Ring Set for 102 mm pistons is engineered to maintain...09120581- SKU:
- 09120581
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- PISTON SIZE METRIC:
- +2.00 MM
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- UTV
$35.95Qty in Cart: 0Quantity:Price:$35.95Subtotal: -
MOOSE RACING Motor Gasket Kit with Seal - Brute Force 811881
MOOSE RACING
$189.86A complete engine and transmission rebuild demands precision-fit gaskets and seals—compromising here risks oil leaks, compression loss, and catastrophic failure. The MOOSE RACING Motor Gasket Kit delivers OEM-quality seals at a fraction of OEM pricing,...09340428- SKU:
- 09340428
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- TYPE:
- ENGINE
- RIDING STYLE:
- UTV
$189.86 -
MOOSE RACING Water Pump Rebuild Kit 821875
MOOSE RACING
$55.90A failing water pump can sideline your engine when you can't afford the downtime. The MOOSE RACING Water Pump Rebuild Kit 821875 gives you everything needed to restore cooling system integrity without replacing the entire pump—saving time and money while...09344849- SKU:
- 09344849
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- UTV
$55.90 -
MOOSE RACING Water Pump Rebuild Kit 821879
MOOSE RACING
$64.62A failing water pump can sideline your engine faster than you'd expect—and rebuilding is far more cost-effective than replacement. This MOOSE RACING rebuild kit gives you every component needed to restore your pump to OEM specifications, eliminating...09344850- SKU:
- 09344850
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- UTV
$64.62 -
MOOSE RACING Water Pump Rebuild Kit 821903
MOOSE RACING
$80.95A failing water pump can compromise your engine's cooling system and derail race day performance. This MOOSE RACING rebuild kit gives you everything needed to restore your water pump to OEM specifications without the expense of full replacement. Whether...09344851- SKU:
- 09344851
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- ATV
$80.95 -
MOOSE RACING Water Pump Rebuild Kit 821920
MOOSE RACING
$54.72A failing water pump can leave you stranded and damage your engine beyond repair. This complete rebuild kit from MOOSE RACING gives you every seal, bearing, gasket, and component needed to restore your water pump to OEM performance without the downtime...09344854- SKU:
- 09344854
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- REPAIR KIT
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP
$54.72 -
MOOSE RACING Water Pump Rebuild Kit 821923
MOOSE RACING
$61.69A failing water pump is a silent killer on the track and street—coolant leaks, overheating, and catastrophic engine damage happen fast when seals wear out. This MOOSE RACING rebuild kit gives you everything needed to restore your water pump to OEM...09344855- SKU:
- 09344855
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$61.69Qty in Cart: 0Quantity:Price:$61.69Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821943
MOOSE RACING
$42.02A failing water pump doesn't just compromise cooling efficiency—it can lead to catastrophic engine damage if ignored. This MOOSE RACING rebuild kit gives you everything needed to restore your water pump to factory specifications without the cost of...09344858- SKU:
- 09344858
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- UTV
$42.02 -
MOOSE RACING Water Pump Rebuild Kit 821957
MOOSE RACING
$30.61A failing water pump can compromise your entire cooling system, leading to overheating, engine damage, and costly downtime. The MOOSE RACING Water Pump Rebuild Kit 821957 gives you everything needed to restore your pump to OEM specifications without...09344862- SKU:
- 09344862
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$30.61 -
MOOSE RACING Top End Gasket Kit - TRX450 Foreman 810859
MOOSE RACING
$55.87A quality gasket and seal kit is essential when you're rebuilding your TRX450 Foreman's top end—cheap gaskets lead to leaks, compression loss, and costly engine damage down the line. MOOSE Racing delivers OEM-equivalent reliability at a fraction of the...09340093- SKU:
- 09340093
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- ATV
- UNITS:
- KIT
$55.87 -
MOOSE RACING Motor Seals - Polaris 325-500 - 4-Stroke 822143
MOOSE RACING
$13.82Engine seals are critical wear items that directly impact oil containment, compression integrity, and overall engine longevity. OEM replacement seals often carry premium pricing, but MOOSE Racing delivers genuine-quality seals at a fraction of the...M822143- SKU:
- M822143
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- APPLICATION:
- ENGINE
- UNITS:
- SET
- TYPE:
- OIL
$13.82 -
MOOSE RACING Clutch Cover Gasket 816043
MOOSE RACING
$22.46A leaking clutch cover gasket compromises engine integrity and creates messy maintenance headaches. The MOOSE RACING 816043 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech materials engineered for durability and...09341406- SKU:
- 09341406
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
$22.46Qty in Cart: 0Quantity:Price:$22.46Subtotal: -
MOOSE RACING Clutch Cover Gasket 816059
MOOSE RACING
$38.56A leaking clutch cover gasket compromises engine sealing and invites oil contamination into your transmission—a problem that compounds quickly under racing or high-load conditions. The MOOSE RACING 816059 clutch cover gasket delivers OEM-equivalent...09341408- SKU:
- 09341408
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$38.56Qty in Cart: 0Quantity:Price:$38.56Subtotal: -
MOOSE RACING Clutch Cover Gasket 816061
MOOSE RACING
$14.33A leaking clutch cover gasket compromises engine sealing and can lead to oil loss and contamination—exactly what you don't want mid-season. The MOOSE RACING 816061 delivers genuine OEM-level sealing performance at a fraction of OEM pricing, using...09341409- SKU:
- 09341409
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
$14.33 -
MOOSE RACING Clutch Cover Gasket 816094
MOOSE RACING
$16.90A worn or damaged clutch cover gasket compromises your engine's seal integrity, leading to oil leaks and potential contamination of critical drivetrain components. The MOOSE RACING Clutch Cover Gasket 816094 delivers OEM-equivalent reliability at a...09341410- SKU:
- 09341410
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- CLUTCH COVER
$16.90 -
MOOSE RACING Clutch Cover Gasket 816102
MOOSE RACING
$16.90A leaking clutch cover gasket compromises engine integrity and invites contamination into critical drivetrain components. The MOOSE RACING 816102 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, ensuring your rebuild stays dry...09341411- SKU:
- 09341411
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
$16.90 -
MOOSE RACING Clutch Cover Gasket 817406
MOOSE RACING
$18.16A leaking clutch cover gasket compromises engine integrity and creates messy cleanup headaches. The MOOSE RACING 817406 delivers OEM-spec sealing performance at a fraction of OEM pricing, using high-tech materials engineered for reliable, long-term...09341423- SKU:
- 09341423
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$18.16Qty in Cart: 0Quantity:Price:$18.16Subtotal:
