Dirt Bike Engine
Dirt Bike Engine Parts at JJ Motorsports
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts to keep your engine running at peak efficiency on the track or trails.
Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.
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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On Sale
ATHENA Oil Seal Gasket Kit - Kawasaki P400250400069
ATHENA
MSRP: $57.95Now: $52.00Was: $57.95Engine seals and gaskets are critical wear items that directly impact oil retention, combustion efficiency, and overall engine longevity. A degraded or leaking seal compromises compression and allows...09346468- SKU:
- 09346468
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $57.95Now: $52.00Was: $57.95 -
K & N Oil Filter KN-141
K & N
$11.99If you're running synthetic or synthetic-blend oils in your high-performance engine, you need a filter built to handle the demands. The K&N KN-141 pairs premium synthetic media with high-flow design...KN141- SKU:
- KN141
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BASE FINISH:
- NATURAL
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- LENGTH METRIC:
- 40 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- BASE COLOR:
- RED
- STYLE:
- STANDARD
- PRODUCT NAME:
- OIL FILTER
$11.99 -
MOOSE RACING Oil Seal Set - KLX250 822137
MOOSE RACING
$20.52Engine seals are critical to maintaining proper lubrication and preventing oil leakage that can compromise performance and damage internal components. This comprehensive MOOSE Racing Oil Seal Set...09351148- SKU:
- 09351148
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- ENGINE
- TYPE:
- OIL
$20.52Qty in Cart: 0Quantity:Price:$20.52Subtotal: -
MOOSE RACING Oil Seal Set - YZ 65 822993
MOOSE RACING
$26.00Engine seals are critical wear items that prevent oil leakage and maintain crankcase pressure—two factors directly affecting performance and engine longevity. The MOOSE RACING Oil Seal Set delivers...09351150- SKU:
- 09351150
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OIL
- UNITS:
- KIT
- APPLICATION:
- ENGINE
$26.00 -
PARTS UNLIMITED Oil Filter 16510-24501
PARTS UNLIMITED
$7.09A quality oil filter is the first line of defense against engine wear and contamination. The PARTS UNLIMITED Pro Series combines premium international materials—German filter media, English...010025- SKU:
- 010025
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- UTV
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$7.09 -
PARTS UNLIMITED Oil Filter 5H0-13440-00
PARTS UNLIMITED
$14.23Oil filtration is non-negotiable in high-performance applications where engine stress and heat accelerate contamination. This Pro Series filter uses internationally-sourced materials—German filter...010028- SKU:
- 010028
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- UTV
- TYPE:
- CARTRIDGE
- COLOR/FINISH:
- SILVER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- BASE COLOR:
- SILVER
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$14.23Qty in Cart: 0Quantity:Price:$14.23Subtotal: -
PARTS UNLIMITED Oil Filter 2H0-13440-90
PARTS UNLIMITED
$7.09Engine oil filtration directly impacts engine longevity and performance—contaminated oil accelerates wear on critical components, while proper filtration maintains optimal viscosity and protection...K150028- SKU:
- K150028
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- OFF-ROAD
$7.09 -
PARTS UNLIMITED Oil Filter 580.38.005.000
PARTS UNLIMITED
$8.11A quality oil filter is non-negotiable for engine longevity and consistent performance. The PARTS UNLIMITED Pro Series delivers superior filtration using premium international materials—German filter...07120051- SKU:
- 07120051
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FIRST FILTER FOR DUAL FILTER APPLICATIONS
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- STREET
- BASE COLOR:
- YELLOW
$8.11 -
PARTS UNLIMITED Oil Filter 590.38.046.000
PARTS UNLIMITED
$7.09Engine protection starts with filtration. A quality oil filter removes contaminants that compromise bearing surfaces and accelerate wear—especially critical under sustained high-RPM operation or...07120052- SKU:
- 07120052
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- YELLOW
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- SECOND FILTER FOR DUAL FILTER APPLICATIONS
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$7.09Qty in Cart: 0Quantity:Price:$7.09Subtotal: -
Pro Filter Oil Filter for 2007-2015 Hyosung GT250R PF-131
PRO FILTER
$6.99Engine longevity depends on consistent, effective filtration—and OEM filters often fall short of what high-performance engines demand. The Pro Filter PF-131 exceeds factory specifications with...07120568- SKU:
- 07120568
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- STYLE:
- PREMIUM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$6.99 -
Pro Filter Replacement Oil Filter for Suzuki DR200S 2015-2019 PF-132
PRO FILTER
$6.99Your DR200S engine relies on clean oil to deliver consistent power and longevity—factory filters can't always keep up with the demands of aggressive riding or extended service intervals. The PRO...07120569- SKU:
- 07120569
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- STYLE:
- PREMIUM
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- UTV
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BASE FINISH:
- CHROME
$6.99Qty in Cart: 0Quantity:Price:$6.99Subtotal: -
Pro Filter Suzuki S40 Boulevard 2005-2016 Oil Filter PF-137
PRO FILTER
$6.99Your S40 Boulevard deserves filtration that matches OEM performance without the OEM price tag. The PRO FILTER PF-137 delivers advanced micro-pore technology to capture contaminants while maintaining...07120573- SKU:
- 07120573
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- PREMIUM
$6.99 -
Pro Filter Replacement Oil Filter for Suzuki AN650A Burgman ABS Executive 2016 PF-138C
PRO FILTER
$15.99Factory oil filters often compromise flow efficiency and filtration consistency, leaving your Burgman's engine vulnerable to wear. The PRO FILTER PF-138C delivers OEM-exceeding protection with...07120575- SKU:
- 07120575
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- STYLE:
- PREMIUM
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- UTV
$15.99 -
Pro Filter PF-139 Oil Filter for Suzuki DR-Z400S 2000-2009
PRO FILTER
$6.99Keep your DR-Z400S running clean and protected with the Pro Filter PF-139, engineered to trap more contaminants than stock filters while maintaining the flow rates your engine demands. Whether you're...07120576- SKU:
- 07120576
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- STYLE:
- PREMIUM
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$6.99 -
WINDEROSA Oil Seal - GP1200/1300 622118
WINDEROSA
$26.53Preventive maintenance is critical for high-performance watercraft engines, and oil seal degradation is a silent threat to engine longevity. The WINDEROSA Oil Seal (622118) is engineered to maintain...09351111- SKU:
- 09351111
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
$26.53 -
WINDEROSA Oil Seal - Sea Doo Jetboat 622205
WINDEROSA
$18.12Oil seals are critical to maintaining proper lubrication and preventing fluid contamination in your Sea Doo jetboat engine. A worn or degraded seal allows oil to escape and water to infiltrate,...09351112- SKU:
- 09351112
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
$18.12 -
WINDEROSA Oil Seal - 900 Ace 622206
WINDEROSA
$49.72An oil seal failure can quickly turn a minor leak into catastrophic engine damage, especially in high-performance applications where reliability is non-negotiable. The WINDEROSA 622206 oil seal is...09351113- SKU:
- 09351113
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
- UNITS:
- KIT
$49.72 -
WINDEROSA Oil Seal - Kawasaki 622401
WINDEROSA
$29.67Oil seals are critical to engine longevity—they prevent oil leakage from your crankshaft and transmission while maintaining pressure in vital engine compartments. A compromised seal leads to oil...09351114- SKU:
- 09351114
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- OIL
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL
$29.67 -
WINDEROSA Oil Seal - Kawasaki 622404
WINDEROSA
$51.22Oil seal failure is one of the most common causes of fluid leakage and contamination in high-performance engines, compromising both reliability and longevity. The WINDEROSA 622404 is a direct...09351115- SKU:
- 09351115
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- SEAL
- UNITS:
- KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- OIL
$51.22 -
WINDEROSA Crankshaft Oil Seal Set 622203
WINDEROSA
$17.62Engine oil seal failure is a silent threat to watercraft reliability—once they degrade, internal leakage and contamination follow quickly. The WINDEROSA Crankshaft Oil Seal Set 622203 replaces both...09350404- SKU:
- 09350404
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- APPLICATION:
- CRANKSHAFT
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- SET
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL
$17.62Qty in Cart: 0Quantity:Price:$17.62Subtotal:
