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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DEL WEST Intake Valve DWYFZ450R22IV03
DEL WEST
$155.95If you're running a Yamaha YFZ450R in competition or high-demand off-road conditions, valve reliability directly impacts your engine's longevity and peak performance. DEL West intake valves are engineered to withstand extreme temperatures and combustion...09261734- SKU:
- 09261734
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- TITANIUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- PRODUCT NAME:
- VALVE
$155.95Qty in Cart: 0Quantity:Price:$155.95Subtotal: -
DEL WEST Exhaust Valve DW-YFZ450R1EV03
DEL WEST
$155.95If you're running a YFZ450R in competition or demanding trail conditions, valve reliability directly impacts your engine's performance and longevity. DEL West exhaust valves are built to withstand the thermal and mechanical stress of high-RPM off-road...09261735- SKU:
- 09261735
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- VALVE
- APPLICATION:
- EXHAUST
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
$155.95 -
DEL WEST Exhaust Valve DW-YFZ450R2EV03
DEL WEST
$155.95If you're pushing your YFZ450R2 to its limits in competition, your exhaust valve needs to match your commitment to performance. DEL WEST valves are purpose-built for the demands of off-road racing, delivering the reliability that separates winners from...09261736- SKU:
- 09261736
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- MATERIAL:
- TITANIUM
$155.95 -
ACERBIS X-Power Cover Kit - Black - KTM/Husqvarna 2726840001
ACERBIS
$69.95Protect your engine investment from the rigors of off-road riding with the ACERBIS X-Power Cover Kit. Dirt, debris, and impacts pose constant threats to exposed crankcase and clutch covers—this kit shields critical engine components without sacrificing...09401766- SKU:
- 09401766
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- X-POWER
- UNITS:
- KIT
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER
- TYPE:
- ENGINE
$69.95 -
BOLT Oil Change Hardware Kit - Honda OILCHG-CRF
BOLT
$7.99Proper sealing is critical to maintaining oil system integrity and preventing leaks that compromise engine performance and cleanliness. This kit supplies all the OEM-specification seals and washers needed for a complete oil change, ensuring your Honda...07120520- SKU:
- 07120520
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- OIL CHANGE
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$7.99 -
BOLT Oil Change Hardware Kit - Kawasaki OILCHG-KXF2
BOLT
$7.99Maintaining proper oil system sealing is critical to engine longevity and performance. This hardware kit supplies all the OEM-specification O-rings and washers needed to restore your oil change components to factory condition, preventing leaks that...07120522- SKU:
- 07120522
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OIL CHANGE
- UNITS:
- KIT
$7.99 -
BOLT Oil Change Hardware Kit - Kawasaki OILCHG-KXF4.16+
BOLT
$7.99Oil change maintenance demands precision—worn seals and degraded washers compromise your engine's integrity and create costly leaks. The BOLT Oil Change Hardware Kit supplies OEM-specification replacement components for your Kawasaki KXF, ensuring a...07120524- SKU:
- 07120524
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- OIL CHANGE
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$7.99 -
K & N Oil Filter KN-563
K & N
$11.99If you're running synthetic or synthetic blend oils in a high-performance engine, your stock oil filter won't cut it. The K&N KN-563 is engineered specifically for the elevated flow rates and demanding conditions of racing applications, delivering...07120353- SKU:
- 07120353
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- RED
- BASE FINISH:
- NATURAL
- STYLE:
- STANDARD
- LENGTH METRIC:
- 47 MM
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$11.99 -
K & N Oil Filter KN-564
K & N
$15.99Synthetic racing oils demand precision filtration that standard filters simply can't deliver. The K&N KN-564 is engineered specifically for high-performance applications, featuring synthetic media that maintains superior flow rates while trapping...07120354- SKU:
- 07120354
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- BASE COLOR:
- RED
- BASE FINISH:
- NATURAL
- STYLE:
- STANDARD
- LENGTH METRIC:
- 97 MM
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$15.99 -
K & N Oil Filter KN-140
K & N
$11.99If you're running synthetic or synthetic-blend oil in a high-performance engine, you need a filter designed to handle it—and the K&N KN-140 is built specifically for that job. Standard oil filters can't keep up with the flow rates of modern synthetics,...07120355- SKU:
- 07120355
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- BASE COLOR:
- RED
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- LENGTH METRIC:
- 46 MM
- PRODUCT NAME:
- OIL FILTER
- BASE FINISH:
- NATURAL
- STYLE:
- STANDARD
$11.99 -
K & N Oil Filter KN-652
K & N
$11.99Synthetic racing oils demand a filter built to handle their unique demands—and the K&N KN-652 is engineered specifically for that job. Its high-flow synthetic media keeps pace with modern performance engines while delivering superior filtration, ensuring...07120148- SKU:
- 07120148
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- BASE FINISH:
- NATURAL
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- LENGTH METRIC:
- 87 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$11.99 -
K & N Oil Filter KN-204-1
K & N
$19.99If you're running synthetic or synthetic-blend oils in a high-performance engine, you need a filter engineered to handle the job—not just any off-the-shelf canister. The K&N KN-204-1 delivers the flow rates and filtration capacity that aggressive...07120550- SKU:
- 07120550
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- BASE COLOR:
- BLACK
- BASE FINISH:
- COATED
- LENGTH METRIC:
- 71 MM
- MODEL:
- WRENCH-OFF
- STYLE:
- PREMIUM
- UNITS:
- EACH
$19.99 -
MOOSE RACING Oil Filter - Honda DT-09-20
MOOSE RACING
$5.95A quality oil filter is non-negotiable for engine longevity, and the MOOSE RACING DT-09-20 delivers reliable protection with consistent 10-micron filtration that traps contaminants before they compromise your engine's internal components. Whether you're...07120220- SKU:
- 07120220
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MICRON RATING:
- 10 MICRONS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$5.95 -
MOOSE RACING Oil Filter - Kawasaki DT-09-40
MOOSE RACING
$5.95A clean oil system is non-negotiable for engine longevity and performance. The MOOSE RACING Oil Filter maintains optimal filtration efficiency, protecting critical engine components from particulate contamination over extended service intervals. Whether...07120222- SKU:
- 07120222
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MICRON RATING:
- 10 MICRONS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
$5.95Qty in Cart: 0Quantity:Price:$5.95Subtotal: -
MOOSE RACING Oil Filter - KTM DT-09-50
MOOSE RACING
$5.95Your engine's longevity depends on clean oil circulating through its critical passages, and a quality filter is non-negotiable for reliable performance. The MOOSE RACING Oil Filter delivers consistent protection with proven filtration media and precision...07120224- SKU:
- 07120224
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- FILTER MEDIA MATERIAL:
- PAPER
- MICRON RATING:
- 10 MICRONS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FIRST FILTER FOR DUAL FILTER APPLICATIONS
- UNITS:
- EACH
$5.95 -
MOOSE RACING Oil Filter - Suzuki DT-09-70
MOOSE RACING
$5.95A quality oil filter is the first line of defense against engine wear and contamination. The MOOSE RACING Oil Filter for Suzuki DT-09-70 engines delivers reliable filtration that keeps your powerhead clean and protected, whether you're running...07120228- SKU:
- 07120228
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- FILTER MEDIA MATERIAL:
- PAPER
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
- TYPE:
- CARTRIDGE
- MICRON RATING:
- 10 MICRONS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
$5.95 -
MOOSE RACING Oil Filter - Stainless Steel - Honda DT-09-21S
MOOSE RACING
$27.95Stock paper oil filters degrade under sustained heat and high RPM operation, compromising engine protection when you need it most. The MOOSE RACING Stainless Steel Oil Filter maintains consistent flow and filtration integrity across extreme temperature...07120231- SKU:
- 07120231
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- SILVER
- MICRON RATING:
- 35 MICRONS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- FILTER MEDIA MATERIAL:
- MICRONIC FILTER CLOTH
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- STANDARD
$27.95 -
MOOSE RACING Complete Motor Gasket Kit with Oil Seals - KTM/Husqvarna 8110009
MOOSE RACING
$135.40A complete engine and transmission rebuild demands precision gaskets and seals that won't fail under racing conditions or heavy use. This Moose Racing kit eliminates the guesswork of sourcing individual components—you get everything needed in one box,...09346448- SKU:
- 09346448
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
$135.40 -
PARTS UNLIMITED Oil Filter 9150166
PARTS UNLIMITED
$5.05A quality oil filter is the first line of defense against engine wear and contamination, directly impacting engine longevity and performance reliability. The PARTS UNLIMITED Pro Series 9150166 combines premium materials sourced from three...07120285- SKU:
- 07120285
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE COLOR:
- YELLOW
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- COLOR/FINISH:
- YELLOW
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- UNITS:
- EACH
$5.05 -
PARTS UNLIMITED Oil Filter 77038005000
PARTS UNLIMITED
$7.09A quality oil filter is the first line of defense against engine wear and contamination. The PARTS UNLIMITED Pro Series 77038005000 combines premium filtration media with precision engineering to keep your engine running clean under demanding conditions...07120144- SKU:
- 07120144
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- YELLOW
- RIDING STYLE:
- STREET
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FOR FUEL INJECTED MODELS
- UNITS:
- EACH
- COLOR/FINISH:
- YELLOW
$7.09
