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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MILLENNIUM Cylinder - +5mm - RZR 1000 MT195
MILLENNIUM
$999.95Nickel silicon carbide (NSC) plated cylinder, CNC machined from 6061 aluminum, Maximum strength, durability, and power09310704- SKU:
- 09310704
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- UNITS:
- KIT
- MATERIAL:
- 6061 T6 ALUMINUM
- RIDING STYLE:
- UTV
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- OVERBORE METRIC:
- +5.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
$999.95 -
MILLENNIUM Cylinder Kit K293
MILLENNIUM
$1,495.00Complete bolt-on Big Bore kit for ultimate strength, durability and power, Includes purpose-built, state-of-the-art, high-performance forged piston kit with rings, tool steel wrist pins and locks, Comes with complete gasket kit, Made in the U.S.A.09310705- SKU:
- 09310705
- Availability:
- Ships Same Business Day
- Weight:
- 10.55 LBS
- MATERIAL:
- 6061 BILLET ALUMINUM
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- BORE SIZE METRIC:
- 85.00 MM
- RIDING STYLE:
- UTV
- COMPRESSION RATIO IMPERIAL:
- 10.75:1
$1,495.00 -
On Sale
MILLENNIUM Cylinder - +5mm - RZR 800 MT187
MILLENNIUM
MSRP: $1,059.95Now: $678.00Was: $1,059.95Nickel silicon carbide (NSC) plated cylinder, CNC machined from 6061 aluminum, Maximum strength, durability, and power09310706- SKU:
- 09310706
- Availability:
- Ships Same Business Day
- Weight:
- 7.30 LBS
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.75:1
- MATERIAL:
- 6061 T6 ALUMINUM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- UTV
- OVERBORE METRIC:
- +5.00 MM
- STYLE:
- BIG BORE
MSRP: $1,059.95Now: $678.00Was: $1,059.95 -
MOOSE RACING Motor Seals - Polaris 822261
MOOSE RACING
$19.31Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350383- SKU:
- 09350383
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- ATV
- TYPE:
- OIL
- APPLICATION:
- ENGINE
- PRODUCT NAME:
- SEAL
- UNITS:
- SET
$19.31 -
MOOSE RACING Motor Seals - TRX500 822277
MOOSE RACING
$41.00Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350384- SKU:
- 09350384
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- ENGINE
- TYPE:
- OIL
- UNITS:
- SET
$41.00Qty in Cart: 0Quantity:Price:$41.00Subtotal: -
MOOSE RACING Motor Seals - TRX450 822312
MOOSE RACING
$58.31Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350385- SKU:
- 09350385
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
- APPLICATION:
- ENGINE
- TYPE:
- OIL
- UNITS:
- SET
$58.31 -
MOOSE RACING Motor Seals - LTR 450 822327
MOOSE RACING
$38.21Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350386- SKU:
- 09350386
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- UNITS:
- SET
- PRODUCT NAME:
- SEAL
- APPLICATION:
- ENGINE
- TYPE:
- OIL
$38.21 -
MOOSE RACING Motor Seals - KFX 450 822334
MOOSE RACING
$32.05Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350387- SKU:
- 09350387
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- SEAL
- APPLICATION:
- ENGINE
- UNITS:
- SET
- TYPE:
- OIL
$32.05 -
MOOSE RACING Motor Seals - Outlaw 525 822335
MOOSE RACING
$44.10Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is designed for durability and...09350388- SKU:
- 09350388
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- ENGINE
- TYPE:
- OIL
- UNITS:
- SET
- PRODUCT NAME:
- SEAL
- RIDING STYLE:
- ATV
$44.10 -
KIBBLEWHITE Intake Valve - Standard - Honda 30-30750T
KIBBLEWHITE
$92.51Tensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion resistant, Made in the U.S.A.09262922- SKU:
- 09262922
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MODEL:
- TENSILITE®
- STEM DIAMETER IMPERIAL:
- 0.2158'
- APPLICATION:
- INTAKE
- RIDING STYLE:
- ATV
- TULIP ANGLE:
- 20°
- UNITS:
- EACH
- HEAD DIAMETER METRIC:
- 36.00 MM
- PRODUCT NAME:
- VALVE
- MATERIAL:
- TITANIUM
$92.51 -
Wossner Piston Kit Polaris 300 2x4 1994-1995 8095DA
WOSSNER
$122.00Experience unparalleled performance with the WOSSNER Piston Kit 8095DA, designed specifically for 2-stroke engines. This kit combines advanced engineering with high-quality materials to deliver superior power and efficiency. Elevate your engine's...09105515- SKU:
- 09105515
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- 74.43 MM
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- DUAL RING
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 74.50 MM
- MODEL:
- STANDARD SERIES
- UNITS:
- KIT
- DISPLACEMENT:
- 283 CC
$122.00Qty in Cart: 0Quantity:Price:$122.00Subtotal: -
Wossner Piston Kit Yamaha YFZ350 Banshee 1987-2006 8075D150
WOSSNER
$132.00Experience unmatched performance with the WOSSNER Piston Kit 8075D150, expertly crafted for 2-stroke engines. This premium kit includes everything you need for a seamless installation, featuring a piston designed for optimal efficiency and durability...09104795- SKU:
- 09104795
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE METRIC:
- +1.50 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 65.50 MM
- DISPLACEMENT:
- 347 CC
- PISTON SIZE METRIC:
- 65.44 MM
- TYPE:
- DUAL RING
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +1,50 MM
- DISPLACEMENT:
- 398 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
$132.00 -
KIBBLEWHITE Exhaust Valve - Raptor 700 - 33mm 80-80434
KIBBLEWHITE
$37.55Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U.S.A.09260256- SKU:
- 09260256
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- HEAD DIAMETER METRIC:
- 33.00 MM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.2350'
- TULIP ANGLE:
- 25°
- LENGTH IMPERIAL:
- 3.770'
$37.55 -
MOOSE RACING Oil Filter DT-10-82
MOOSE RACING
$9.95High-quality replacement for your standard filter, Can filter down to 10 microns, Constructed with high-quality paper filter materials, Manufactured with sealing ring to ensure perfect fit, Offers maximum protection and long-lasting filter life, May be...07120282- SKU:
- 07120282
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- ATV
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- MICRON RATING:
- 10 MICRONS
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- STANDARD
$9.95 -
PARTS UNLIMITED Oil Filter O-Rings - Bombardier - 5-Pack 420950860
PARTS UNLIMITED
$1.99OEM oil filter O-ring replacements, Sold in 5-pack to dealer, sold to consumer as each, For Bombardier 4 TEC 4-Stroke07120365- SKU:
- 07120365
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- TYPE:
- OIL FILTER
- UNITS:
- 5 PACK
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- O-RING SET
- RIDING STYLE:
- WATERCRAFT
$1.99 -
PARTS UNLIMITED Oil Filter O-Rings - Bombardier - 5-Pack 420230920
PARTS UNLIMITED
$5.05OEM oil filter O-ring replacements, Sold in 5-pack to dealer, sold to consumer as each, For Bombardier 4 TEC 4-Stroke07120366- SKU:
- 07120366
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- O-RING SET
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- OIL FILTER
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- RED
$5.05 -
PARTS UNLIMITED Oil Filter 49065-2068
PARTS UNLIMITED
$11.17Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements, All necessary gaskets and o-rings are included with most filters07120284- SKU:
- 07120284
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
- BASE COLOR:
- BLACK
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
$11.17 -
PARTS UNLIMITED Oil Filter 15412-HP7-A01
PARTS UNLIMITED
$7.09Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements, All necessary gaskets and o-rings are included with most filters07120288- SKU:
- 07120288
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- OIL FILTER
- BASE COLOR:
- YELLOW
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ATV
$7.09 -
PARTS UNLIMITED Oil Filter 15412-HM5-A10
PARTS UNLIMITED
$6.07Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements, All necessary gaskets and o-rings are included with most filters07120113- SKU:
- 07120113
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- COLOR/FINISH:
- YELLOW
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- RIDING STYLE:
- ATV
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- BASE COLOR:
- YELLOW
- STYLE:
- STANDARD
$6.07 -
PARTS UNLIMITED Oil Filter 0812-029
PARTS UNLIMITED
$14.23Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements, All necessary gaskets and o-rings are included with most filters07120174- SKU:
- 07120174
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- PAPER
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$14.23
