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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ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2731970002
ACERBIS
$67.95Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap and filter cover, Heat resistant; won't interfere with...09401762- SKU:
- 09401762
- Availability:
- Ships Same Business Day
- Weight:
- 1.41 LBS
- COLOR/FINISH:
- WHITE
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- TYPE:
- ENGINE
- MODEL:
- X-POWER
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$67.95 -
ACERBIS X-Power Cover Kit - Orange - KTM/Husqvarna 2645515226
ACERBIS
$69.95Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap and filter cover, Heat resistant; won't interfere with...09401763- SKU:
- 09401763
- Availability:
- Ships Same Business Day
- Weight:
- 1.51 LBS
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- PLASTIC
- MODEL:
- X-POWER
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$69.95 -
ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2645510002
ACERBIS
$67.95Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap and filter cover, Heat resistant; won't interfere with...09401765- SKU:
- 09401765
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- WHITE
- MODEL:
- X-POWER
- RIDING STYLE:
- STREET
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- TYPE:
- ENGINE
$67.95Qty in Cart: 0Quantity:Price:$67.95Subtotal: -
K & N Oil Filter KN-655
K & N
$11.99K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration to keep your motor...07120119- SKU:
- 07120119
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- BASE COLOR:
- YELLOW
- BASE FINISH:
- NATURAL
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
- LENGTH METRIC:
- 69 MM
$11.99Qty in Cart: 0Quantity:Price:$11.99Subtotal: -
K & N Oil Filter KN-611
K & N
$11.99K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration to keep your motor...07120388- SKU:
- 07120388
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- BASE FINISH:
- NATURAL
- LENGTH METRIC:
- 88 MM
- STYLE:
- STANDARD
- BASE COLOR:
- RED
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
$11.99 -
K & N Oil Filter KN-183
K & N
$16.99K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration to keep your motor...07120500- SKU:
- 07120500
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- BASE COLOR:
- BLACK
- BASE FINISH:
- COATED
- STYLE:
- PREMIUM
- LENGTH METRIC:
- 78 MM
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- FEATURES:
- INCLUDES NUT
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- UNITS:
- EACH
$16.99 -
MOOSE RACING Complete Gasket Kit with Oil Seal - KX 811417
MOOSE RACING
$69.40Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil seals are genuine OEM replacement seals, Sets include...09340875- SKU:
- 09340875
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
$69.40 -
MOOSE RACING Complete Gasket and Oil Seal Kit 811337
MOOSE RACING
$101.61Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil seals are genuine OEM replacement seals, Sets include...09341905- SKU:
- 09341905
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$101.61 -
PARTS UNLIMITED Oil Filter T14-4017
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 filters07120532- SKU:
- 07120532
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- BASE COLOR:
- ORANGE
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$7.09 -
PC RACING Oil Filter PC116
PC RACING
$29.95Filters are reusable and are made from laser-cut, medical-grade, 304 stainless steel micronic filter cloth, Filter down to 35 microns and maintains consistent flow under all conditions including cold start-ups, the presence of water, and extreme heat (up...07120124- SKU:
- 07120124
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- POLISHED
- MICRON RATING:
- 35 MICRONS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- MICRONIC FILTER CLOTH
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- STANDARD
- BASE COLOR:
- SILVER
- FEATURES:
- REUSABLE
- PRODUCT NAME:
- OIL FILTER
- BASE FINISH:
- POLISHED
- MODEL:
- FLO
- RIDING STYLE:
- OFF-ROAD
$29.95 -
PC RACING Oil Filter PC112
PC RACING
$29.95Filters are reusable and are made from laser-cut, medical-grade, 304 stainless steel micronic filter cloth, Filter down to 35 microns and maintains consistent flow under all conditions including cold start-ups, the presence of water, and extreme heat (up...07120126- SKU:
- 07120126
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- SILVER
- FEATURES:
- REUSABLE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- MICRONIC FILTER CLOTH
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- POLISHED
- MICRON RATING:
- 35 MICRONS
- BASE FINISH:
- POLISHED
- MODEL:
- FLO
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
$29.95 -
PC RACING Oil Filter PC207
PC RACING
$29.95Filters are reusable and are made from laser-cut, medical-grade, 304 stainless steel micronic filter cloth, Filter down to 35 microns and maintains consistent flow under all conditions including cold start-ups, the presence of water, and extreme heat (up...07120127- SKU:
- 07120127
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE FINISH:
- POLISHED
- COLOR/FINISH:
- POLISHED
- MODEL:
- FLO
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- SILVER
- FEATURES:
- REUSABLE
- MATERIAL:
- STAINLESS STEEL
- MICRON RATING:
- 35 MICRONS
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- MICRONIC FILTER CLOTH
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
$29.95 -
PINGEL Red Oil Fill Cap - RM/RMX 62300
PINGEL
$31.95Machined from billet aluminum and anodized red, Ultra-strong oil filler caps will not break or crack like stock oil filler caps, Knurled body provides a secure fit, No wrench required, O-ring included with cap to provide no-leak sealing, Made in the U.S...P62300- SKU:
- P62300
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- RED
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- EACH
- PRODUCT NAME:
- CAP
- TYPE:
- OIL FILLER
- COLOR/FINISH:
- RED
$31.95 -
Pro Filter Billet Aluminum Oil Filter Cover for 2014-2024 Husqvarna FC250 BCA-5002-00
PRO FILTER
$39.99Enhance your engine's performance with the PRO FILTER Oil Filter Cover, expertly crafted from high-quality CNC-machined 6061 T-6 billet aluminum. Designed for optimal flow and durability, this cover not only meets but exceeds OEM specifications, ensuring...07120638- SKU:
- 07120638
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- OIL FILTER
$39.99 -
Pro Filter Oil Filter for 2003-2005 KTM 250 EXC PF-155
PRO FILTER
$6.99Experience superior engine protection with the PRO FILTER Replacement Oil Filter PF-155, engineered to meet and exceed OEM specifications. This high-performance filter features an advanced fibrous micro-pore filtration structure, ensuring optimal flow...07120242- SKU:
- 07120242
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- YELLOW
- BASE COLOR:
- YELLOW
- STYLE:
- LONG
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
$6.99 -
Pro Filter Replacement Oil Filter for Kawasaki KX250 2004-2024 Suzuki RM-Z250 2004-2024 Suzuki RM-Z450 2005-2024 Suzuki RMX450Z 2017-2018 PF-207
PRO FILTER
$6.99Upgrade your engine's performance with the PRO FILTER PF-207 Replacement Oil Filter, designed for maximum filtration efficiency and durability. This high-performance filter utilizes advanced micro-pore technology to ensure optimal flow rates while...07120243- SKU:
- 07120243
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- STYLE:
- STANDARD
- BASE COLOR:
- YELLOW
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$6.99 -
Pro Filter Replacement Oil Filter Yamaha WR250F 2003-2021 PF-141
PRO FILTER
$6.99Upgrade your engine's performance with the PRO FILTER Replacement Oil Filter PF-141. Designed to meet and exceed OEM standards, this high-performance filter ensures optimal filtration and consistent flow rates for both synthetic and petroleum-based oils...07120244- SKU:
- 07120244
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BASE COLOR:
- YELLOW
- COLOR/FINISH:
- YELLOW
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
$6.99 -
Pro Filter 2021-2022 Gas Gas EX 350F Oil Filter PF-652
PRO FILTER
$7.99Experience superior engine protection with the PRO FILTER Replacement Oil Filter PF-652. Designed to meet and exceed OEM specifications, this high-performance filter ensures optimal filtration and flow rates, making it ideal for both synthetic and...07120246- SKU:
- 07120246
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- YELLOW
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- STYLE:
- STANDARD
$7.99 -
Pro Filter Premium Oil Filter for 2014 Husqvarna FE350 PF-655
PRO FILTER
$8.99Enhance your engine's performance with the PRO FILTER Replacement Oil Filter PF-655. Designed to meet and exceed OEM specifications, this high-performance filter ensures optimal filtration and flow rates, making it ideal for both synthetic and...07120247- SKU:
- 07120247
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- YELLOW
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- YELLOW
- UNITS:
- EACH
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- PAPER
$8.99 -
Pro Filter Sea-Doo GTI 130 2006-2012 Replacement Oil Filter PF-556
PRO FILTER
$10.99Experience superior engine protection with the PRO FILTER Replacement Oil Filter PF-556. Designed to meet and exceed OEM specifications, this high-performance filter ensures optimal flow rates and durability, making it an essential component for...07120614- SKU:
- 07120614
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- WATERCRAFT
- STYLE:
- PREMIUM
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- OIL FILTER
$10.99
