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...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...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,...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...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 -
On Sale
BOLT Oil Change Hardware Kit - Honda OILCHG-CRF
BOLT
MSRP: $7.99Now: $7.19Was: $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...07120520- SKU:
- 07120520
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- OIL CHANGE
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $7.99Now: $7.19Was: $7.99 -
On Sale
BOLT Oil Change Hardware Kit - Kawasaki OILCHG-KXF2
BOLT
MSRP: $7.99Now: $7.19Was: $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...07120522- SKU:
- 07120522
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OIL CHANGE
- UNITS:
- KIT
MSRP: $7.99Now: $7.19Was: $7.99 -
On Sale
BOLT Oil Change Hardware Kit - Kawasaki OILCHG-KXF4.16+
BOLT
MSRP: $7.99Now: $7.19Was: $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...07120524- SKU:
- 07120524
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- OIL CHANGE
- PRODUCT NAME:
- HARDWARE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $7.99Now: $7.19Was: $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...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...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...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...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...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...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...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
$5.95 -
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...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...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...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...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...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...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
