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Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

Dirt Bike Air and Fuel

Dirt Bike Air & Fuel Systems at JJ Motorsports

Optimize your bike’s performance with high-quality air and fuel components from JJ Motorsports. Browse air filters, carburetors, and fuel system parts engineered to deliver clean airflow and a consistent fuel mix for peak efficiency. Ensure your bike runs smoothly by pairing these with other essential off-road dirt bike accessories.

Shop trusted brands like Motion Pro for cables and Uni Filter for high-flow filters. Explore related categories such as Dirt Bike Engine Parts for rebuilds or Dirt Bike Exhaust for complete tuning.

Top Dirt Bike Air & Fuel Products

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
  • UNI FILTER Filter - RM125 NU-2446ST

    UNI FILTER Filter - RM125 NU-2446ST

    UNI FILTER

    $37.95
    The UNI FILTER RM125 NU-2446ST delivers maximum airflow to your engine while maintaining superior dirt-stopping capability—essential for maintaining peak performance in demanding conditions. Unlike disposable filters that compromise between filtration...
    NU2446ST
    SKU:
    NU2446ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    OVAL
    TYPE:
    STAGE II
    UNITS:
    EACH
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    TAPERED
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Filter - Suzuki NU-2420ST

    UNI FILTER Filter - Suzuki NU-2420ST

    UNI FILTER

    $34.95
    Reusable air filters deliver superior airflow while maintaining filtration efficiency—giving your engine the clean air it needs to breathe without sacrificing performance. Unlike disposable OEM filters, the UNI FILTER NU-2420ST can be cleaned and reused...
    NU2420ST
    SKU:
    NU2420ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    FILTER SHAPE:
    CYLINDER
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • UNI FILTER Filter - KX125/250 NU-2370ST

    UNI FILTER Filter - KX125/250 NU-2370ST

    UNI FILTER

    $35.95
    The UNI FILTER NU-2370ST delivers the airflow your KX125/250 demands while maintaining exceptional filtration—a critical balance that separates superior engine performance from premature wear. Built with two-stage construction and a proven Ultra Seal...
    NU2370ST
    SKU:
    NU2370ST
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    UNI-SEAL
    FILTER SHAPE:
    ROUND
    TYPE:
    MULTI STAGE
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    ODD
    STYLE:
    COMPETITION
    UNITS:
    EACH
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Filter - Kawasaki KL/R250 NU-2384ST

    UNI FILTER Filter - Kawasaki KL/R250 NU-2384ST

    UNI FILTER

    $18.95
    Stock air filters restrict airflow and require frequent replacement—a persistent drain on maintenance costs and engine efficiency. The UNI FILTER NU-2384ST delivers superior filtration without sacrificing the airflow your Kawasaki KL/R250 needs for...
    NU2384ST
    SKU:
    NU2384ST
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    BASE COLOR:
    BLACK
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    SQUARE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    FEATURES:
    WASHABLE
    MODEL:
    ULTRA-SEAL
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    PRODUCT NAME:
    AIR FILTER
    UNITS:
    EACH
    $18.95
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Yamaha 26-1314

    MOOSE RACING Carburetor Repair Kit - Yamaha 26-1314

    MOOSE RACING

    $56.51
    Carburetor performance degrades over time as gaskets harden, jets clog, and seals fail—leaving your bike running lean, rich, or with erratic idle. This MOOSE RACING rebuild kit supplies OEM-grade replacement components sourced from the same supplier that...
    10030837
    SKU:
    10030837
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    CARBURETOR
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $56.51
    Qty in Cart: 0
    Quantity:
    Price:
    $56.51
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Honda 26-1328

    MOOSE RACING Carburetor Repair Kit - Honda 26-1328

    MOOSE RACING

    $57.52
    A carburetor in need of rebuilding doesn't have to mean a trip to the shop or an expensive replacement unit. The MOOSE RACING Carburetor Repair Kit supplies every gasket, O-ring, float valve, and jet needed to restore your Honda carburetor to factory...
    10030842
    SKU:
    10030842
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    $57.52
    Qty in Cart: 0
    Quantity:
    Price:
    $57.52
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Honda 26-1358

    MOOSE RACING Carburetor Repair Kit - Honda 26-1358

    MOOSE RACING

    $49.44
    Carburetor performance directly impacts throttle response, fuel efficiency, and engine reliability—and worn seals and jets are the silent killers of smooth operation. This MOOSE RACING rebuild kit supplies every gasket, O-ring, float valve, and jet you...
    10030844
    SKU:
    10030844
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    TYPE:
    CARBURETOR
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    $49.44
    Qty in Cart: 0
    Quantity:
    Price:
    $49.44
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Honda 26-1200

    MOOSE RACING Carburetor Repair Kit - Honda 26-1200

    MOOSE RACING

    $53.48
    Over time, carburetor gaskets harden and seals degrade, causing fuel leaks, rough idle, and performance loss. Rather than replacing your entire carburetor, this complete repair kit restores your Honda's fuel delivery system to factory specifications with...
    10030795
    SKU:
    10030795
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CARBURETOR
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    $53.48
    Qty in Cart: 0
    Quantity:
    Price:
    $53.48
    Subtotal:
  • MOOSE RACING Hose Protector - 11mm 060-0438

    MOOSE RACING Hose Protector - 11mm 060-0438

    MOOSE RACING

    $14.95
    Hose routing in high-performance applications leaves vital fuel, coolant, and brake lines exposed to engine heat, vibration, and sharp edges. The MOOSE RACING Hose Protector shields these vulnerable connections from abrasion and thermal damage, extending...
    19020032
    SKU:
    19020032
    Availability:
    Ships Same Business Day
    Weight:
    0.19 LBS
    INSIDE DIAMETER:
    11 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    FUEL LINE
    COLOR/FINISH:
    STAINLESS STEEL
    MATERIAL:
    STAINLESS STEEL
    UNITS:
    EACH
    PRODUCT NAME:
    PROTECTOR
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $14.95
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • MOOSE RACING Hot Plunger Kit 46-2007

    MOOSE RACING Hot Plunger Kit 46-2007

    MOOSE RACING

    $32.27
    A seized or missing choke plunger will leave you stranded with a bike that won't start or runs erratically—exactly what you don't need during a race or ride. The MOOSE RACING Hot Plunger Kit 46-2007 gives you a complete replacement assembly with all...
    10031866
    SKU:
    10031866
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    PLUNGER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    COLOR/FINISH:
    BLACK
    MODEL:
    HOT START
    RIDING STYLE:
    STREET
    $32.27
    Qty in Cart: 0
    Quantity:
    Price:
    $32.27
    Subtotal:
  • MOOSE RACING Hot Plunger Kit - Yamaha 46-2003

    MOOSE RACING Hot Plunger Kit - Yamaha 46-2003

    MOOSE RACING

    $32.27
    A seized or missing choke plunger can leave you stranded with a bike that won't start or runs poorly at cold startup—exactly what you don't need when you're ready to ride. This MOOSE RACING Hot Plunger Kit gives you a complete, OEM-quality replacement...
    10031867
    SKU:
    10031867
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    COLOR/FINISH:
    BLACK
    MODEL:
    HOT START
    UNITS:
    KIT
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    PLUNGER
    RIDING STYLE:
    OFF-ROAD
    $32.27
    Qty in Cart: 0
    Quantity:
    Price:
    $32.27
    Subtotal:
  • PC RACING Pro Seal - KX250F/450F PC22

    PC RACING Pro Seal - KX250F/450F PC22

    PC RACING

    $18.95
    A proper air filter seal is critical for maintaining intake efficiency and preventing unfiltered air from bypassing your filter element. The PC Racing Pro Seal eliminates the mess and uncertainty of traditional filter grease with a neoprene gasket that...
    10113841
    SKU:
    10113841
    Availability:
    Ships Same Business Day
    Weight:
    2.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $18.95
    Subtotal:
  • MOOSE RACING Radiator Hose Kit - Blue - Yamaha YAM-60

    MOOSE RACING Radiator Hose Kit - Blue - Yamaha YAM-60

    MOOSE RACING

    $137.95
    Engine cooling efficiency directly impacts performance and longevity, especially under racing conditions or sustained high-load operation. OEM rubber hoses degrade over time, losing elasticity and restricting coolant flow—compromising thermal management...
    19020994
    SKU:
    19020994
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    COLOR/FINISH:
    BLUE
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    OEM DESIGN
    UNITS:
    KIT
    PRODUCT NAME:
    HOSE
    TYPE:
    RADIATOR
    MATERIAL:
    SILICONE
    Qty in Cart: 0
    Quantity:
    Price:
    $137.95
    Subtotal:
  • MOOSE RACING Radiator Hose Kit - Red - Honda MBU-HON-28-RD

    MOOSE RACING Radiator Hose Kit - Red - Honda MBU-HON-28-RD

    MOOSE RACING

    $234.95
    Engine cooling efficiency directly impacts performance and longevity, especially under sustained racing conditions or aggressive driving. OEM rubber hoses degrade from heat cycles, restricting coolant flow and reducing your engine's ability to manage...
    19020470
    SKU:
    19020470
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    HOSE KIT
    MATERIAL:
    SILICONE
    UNITS:
    KIT
    FEATURES:
    INCLUDES NECESSARY CLAMPS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RADIATOR
    COLOR/FINISH:
    RED
    STYLE:
    RACE BIKE DESIGN
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Yamaha 26-1278

    MOOSE RACING Carburetor Repair Kit - Yamaha 26-1278

    MOOSE RACING

    $59.54
    Carburetor performance directly impacts throttle response, fuel atomization, and overall engine tuning precision. Over time, seals degrade and jets accumulate carbon deposits, compromising the calibration your engine depends on. The MOOSE RACING...
    10030813
    SKU:
    10030813
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    CARBURETOR
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $59.54
    Qty in Cart: 0
    Quantity:
    Price:
    $59.54
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Kawasaki 26-1133

    MOOSE RACING Carburetor Repair Kit - Kawasaki 26-1133

    MOOSE RACING

    $53.48
    Carburetor degradation is inevitable—ethanol-blended fuel, seasonal storage, and regular use all take their toll on seals, gaskets, and internal components. A complete rebuild kit keeps your OEM carburetor functioning at peak efficiency without the cost...
    10030738
    SKU:
    10030738
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    $53.48
    Qty in Cart: 0
    Quantity:
    Price:
    $53.48
    Subtotal:
  • MOOSE RACING Radiator Brace - KTM - 2-Stroke 11-100

    MOOSE RACING Radiator Brace - KTM - 2-Stroke 11-100

    MOOSE RACING

    $109.95
    Radiators are expensive investments that take a beating in aggressive riding conditions. The MOOSE RACING Radiator Brace shields your cooling system from side impacts and frame twisting that can crack fins or rupture tanks—damage that easily costs...
    19010134
    SKU:
    19010134
    Availability:
    Ships Same Business Day
    Weight:
    2.41 LBS
    MATERIAL:
    5052 ALUMINUM
    TYPE:
    RADIATOR
    UNITS:
    SET
    PRODUCT NAME:
    BRACE
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    SILVER
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $109.95
    Subtotal:
  • MOOSE RACING Acceleration Pump Rebuild Kit 46-3008

    MOOSE RACING Acceleration Pump Rebuild Kit 46-3008

    MOOSE RACING

    $25.20
    A stuck air cut-off valve doesn't just hurt performance—it creates unpredictable deceleration popping and rough running conditions that make diagnosing other issues nearly impossible. This MOOSE RACING rebuild kit gives you everything needed to restore...
    10031444
    SKU:
    10031444
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    ACCELERATOR PUMP
    RIDING STYLE:
    STREET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $25.20
    Qty in Cart: 0
    Quantity:
    Price:
    $25.20
    Subtotal:
  • MOOSE RACING Max Float Bowl Screw -  12mm 03-S42

    MOOSE RACING Max Float Bowl Screw - 12mm 03-S42

    MOOSE RACING

    $4.95
    Carburetor float bowl screws take constant abuse from vibration and repeated disassembly, making them prone to stripping and corrosion. These MOOSE Racing stainless steel hex cap screws resist rust while the integrated spring washer eliminates the need...
    10500379
    SKU:
    10500379
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    SCREW
    RIDING STYLE:
    OFF-ROAD
    LENGTH METRIC:
    12.00 MM
    MATERIAL:
    STAINLESS STEEL
    TYPE:
    FLOAT BOWL
    UNITS:
    4 PACK
    $4.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • MOOSE RACING Carburetor Repair Kit - Suzuki 26-1114

    MOOSE RACING Carburetor Repair Kit - Suzuki 26-1114

    MOOSE RACING

    $41.36
    A worn carburetor starves your engine of precise fuel delivery, killing throttle response and reliability when you need it most. The MOOSE RACING Carburetor Repair Kit supplies OEM-grade gaskets, O-rings, float valves, and jets sourced from the same...
    10030721
    SKU:
    10030721
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CARBURETOR
    UNITS:
    KIT
    $41.36
    Qty in Cart: 0
    Quantity:
    Price:
    $41.36
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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