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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 Air Filter - Penton 125/175 NU-1401ST

    UNI FILTER Air Filter - Penton 125/175 NU-1401ST

    UNI FILTER

    $37.95
    Stock air filters restrict airflow and require frequent replacement, compromising engine efficiency and increasing maintenance costs. The UNI FILTER NU-1401ST delivers superior filtration and airflow for your Penton 125/175, using a reusable two-stage...
    10112513
    SKU:
    10112513
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    FILTER MEDIA MATERIAL:
    FOAM
    STYLE:
    STANDARD
    FILTER SHAPE:
    OVAL
    BASE COLOR:
    RED
    FILTER SHAPE:
    ELONGATED
    PRODUCT NAME:
    AIR FILTER FOR PENTON 125/175 MODELS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    TYPE:
    STAGE II
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Air Filter - Suzuki TM250/400 NU-2408

    UNI FILTER Air Filter - Suzuki TM250/400 NU-2408

    UNI FILTER

    $21.95
    The UNI FILTER NU-2408 delivers superior airflow and filtration for your Suzuki TM250/400 without sacrificing engine protection. Unlike disposable filters that require constant replacement, this reusable design cleans easily with household dishwashing...
    10112514
    SKU:
    10112514
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    UNITS:
    EACH
    FILTER SHAPE:
    OVAL
    TYPE:
    STAGE II
    FEATURES:
    WASHABLE
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    BLUE
    FILTER MEDIA MATERIAL:
    FOAM
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • UNI FILTER Air Filter - Yamaha YZ80 '78-'80 NU-2239ST

    UNI FILTER Air Filter - Yamaha YZ80 '78-'80 NU-2239ST

    UNI FILTER

    $33.95
    Stock air filters restrict airflow and require frequent replacement—a reusable UNI filter delivers superior filtration while cutting your long-term costs and maintenance hassles. The two-stage design separates for thorough cleaning, meaning you can...
    10112515
    SKU:
    10112515
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    RED
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FILTER SHAPE:
    OVAL
    TYPE:
    STAGE II
    COLOR/FINISH:
    RED
    FILTER MEDIA STYLE:
    DUAL-LAYER
    UNITS:
    EACH
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Air Filter - Yamaha YZ80 '81-'82 NU-2249ST

    UNI FILTER Air Filter - Yamaha YZ80 '81-'82 NU-2249ST

    UNI FILTER

    $31.95
    Stock air filters restrict airflow and require frequent replacement, costing you performance and money over time. The UNI FILTER NU-2249ST delivers superior filtration and airflow for your YZ80 while remaining completely reusable—clean it, oil it, and...
    10112516
    SKU:
    10112516
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    COLOR/FINISH:
    RED
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    CYLINDER
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    UNI-SEAL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • UNI FILTER Air Filter - Yamaha NU-2237ST

    UNI FILTER Air Filter - Yamaha NU-2237ST

    UNI FILTER

    $31.95
    A quality air filter is fundamental to engine efficiency—it protects your intake while maintaining the airflow your engine demands. The UNI FILTER NU-2237ST delivers superior filtration and airflow characteristics, meaning better throttle response and...
    10112519
    SKU:
    10112519
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    FEATURES:
    WASHABLE
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    COLOR/FINISH:
    RED
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    STREET
    BASE COLOR:
    RED
    FILTER SHAPE:
    CONE
    PRODUCT NAME:
    AIR FILTER
    UNITS:
    EACH
    FILTER MEDIA MATERIAL:
    FOAM
    $31.95
    Qty in Cart: 0
    Quantity:
    Price:
    $31.95
    Subtotal:
  • UNI FILTER Air Filter - TY250 Trails NU-2218

    UNI FILTER Air Filter - TY250 Trails NU-2218

    UNI FILTER

    $35.95
    Stock air filters restrict airflow and require frequent replacement—the UNI FILTER NU-2218 eliminates both problems with a reusable two-stage design that delivers superior filtration without sacrificing breathing room. Built for the TY250 Trails, this U...
    10112522
    SKU:
    10112522
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    YELLOW
    FILTER SHAPE:
    OVAL
    TYPE:
    STAGE II
    FILTER SHAPE:
    ELONGATED
    PRODUCT NAME:
    AIR FILTER
    STYLE:
    STANDARD
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Air Filter - YZ/IT250/400 NU-2235ST

    UNI FILTER Air Filter - YZ/IT250/400 NU-2235ST

    UNI FILTER

    $35.95
    Dirt bikes demand air filtration that keeps up with your performance expectations—and disposable filters can't match the long-term value and reliability of a quality reusable unit. The UNI FILTER NU-2235ST delivers superior airflow and dirt-stopping...
    10112523
    SKU:
    10112523
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    BASE COLOR:
    RED
    FILTER SHAPE:
    TAPERED
    PRODUCT NAME:
    AIR FILTER
    STYLE:
    STANDARD
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    FILTER SHAPE:
    OVAL
    TYPE:
    STAGE II
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Air Filter - TT/XT500 '77-'81 NU-2225ST

    UNI FILTER Air Filter - TT/XT500 '77-'81 NU-2225ST

    UNI FILTER

    $33.95
    Stock air filters restrict flow and demand constant replacement—they're a hidden tax on performance. The UNI FILTER NU-2225ST eliminates that cycle with a reusable design that flows better than OEM while trapping more dirt, giving your TT/XT500 cleaner...
    10112525
    SKU:
    10112525
    Availability:
    Ships Same Business Day
    Weight:
    0.21 LBS
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    SQUARE
    STYLE:
    STANDARD
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    TYPE:
    STAGE II
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Air Filter - Husqvarna NU-1010ST

    UNI FILTER Air Filter - Husqvarna NU-1010ST

    UNI FILTER

    $45.95
    Stock air filters trap dirt while suffocating your engine's breathing potential—the UNI FILTER NU-1010ST replaces that compromise with genuine high-flow filtration that maintains peak airflow without sacrificing protection. Its two-stage design and...
    10112685
    SKU:
    10112685
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $45.95
    Subtotal:
  • UNI FILTER Air Filter - SX/TC 50 NU-1419ST

    UNI FILTER Air Filter - SX/TC 50 NU-1419ST

    UNI FILTER

    $14.95
    Stock air filters restrict flow and lose efficiency quickly—the UNI FILTER SX/TC 50 delivers superior airflow while actually stopping more dirt, giving your engine the clean air it needs to perform consistently. Built for reusability, this two-stage...
    10112479
    SKU:
    10112479
    Availability:
    Ships Same Business Day
    Weight:
    0.16 LBS
    BASE COLOR:
    RED
    FILTER SHAPE:
    ODD
    FILTER SHAPE:
    RECTANGULAR
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    STYLE:
    STANDARD
    TYPE:
    STAGE II
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
  • UNI FILTER Filter - Honda CRF150R NU-4141ST

    UNI FILTER Filter - Honda CRF150R NU-4141ST

    UNI FILTER

    $37.95
    Stock air filters sacrifice performance and demand frequent replacement—this UNI FILTER gives your CRF150R superior airflow while remaining reusable for years. The two-stage design and Ultra Seal grease groove deliver consistent filtration without the...
    10110948
    SKU:
    10110948
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    PRODUCT NAME:
    AIR FILTER
    FILTER SHAPE:
    ODD
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    ROUND
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Air Filter - Kawasaki KX250/450F NU-2399ST

    UNI FILTER Air Filter - Kawasaki KX250/450F NU-2399ST

    UNI FILTER

    $37.95
    Stock air filters restrict airflow and require frequent replacement—a costly cycle that impacts engine performance and your maintenance budget. The UNI FILTER NU-2399ST delivers superior filtration and airflow in a reusable design, meaning you clean it,...
    10110598
    SKU:
    10110598
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    ODD
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    UNITS:
    EACH
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Air Filter - Yamaha TTR-230 NU-3254ST

    UNI FILTER Air Filter - Yamaha TTR-230 NU-3254ST

    UNI FILTER

    $33.95
    The UNI FILTER Air Filter (NU-3254ST) delivers superior airflow and filtration for your Yamaha TTR-230, keeping your engine running cleaner while maintaining OEM fitment. Unlike disposable filters, this reusable design lets you clean, oil, and redeploy...
    10110661
    SKU:
    10110661
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    SQUARE
    PRODUCT NAME:
    AIR FILTER
    FILTER SHAPE:
    ODD
    MODEL:
    ULTRA-SEAL
    COLOR/FINISH:
    RED
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    UNITS:
    EACH
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Air Filter - Honda CRF250F NU-4152ST

    UNI FILTER Air Filter - Honda CRF250F NU-4152ST

    UNI FILTER

    $37.95
    The UNI FILTER NU-4152ST delivers superior airflow while maintaining aggressive dirt filtration—critical for keeping your CRF250F's engine clean during aggressive riding. This reusable filter design eliminates the recurring cost of disposable...
    10114516
    SKU:
    10114516
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    FILTER SHAPE:
    PANEL
    STYLE:
    COMPETITION
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    BASE COLOR:
    RED
    TYPE:
    STAGE II
    UNITS:
    EACH
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Air Filter - Honda CRF450R NU-4153ST

    UNI FILTER Air Filter - Honda CRF450R NU-4153ST

    UNI FILTER

    $35.95
    The UNI FILTER Air Filter for Honda CRF450R delivers superior airflow while maintaining exceptional dirt-stopping capability—critical for maintaining peak engine performance in demanding riding conditions. Unlike disposable filters, this reusable design...
    10114517
    SKU:
    10114517
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER SHAPE:
    PANEL
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Air Filter - KTM 790 NU-1424ST

    UNI FILTER Air Filter - KTM 790 NU-1424ST

    UNI FILTER

    $63.95
    Stock air filters restrict airflow and require frequent replacement—a performance penalty you don't need. The UNI FILTER NU-1424ST delivers measurably higher airflow while stopping dirt more effectively, all while being washable and reusable indefinitely...
    10114407
    SKU:
    10114407
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BASE COLOR:
    RED
    FILTER SHAPE:
    SQUARE
    PRODUCT NAME:
    AIR FILTER
    TYPE:
    STAGE II
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    $63.95
    Qty in Cart: 0
    Quantity:
    Price:
    $63.95
    Subtotal:
  • UNI FILTER Air Filter - KLX230R NU-2606ST

    UNI FILTER Air Filter - KLX230R NU-2606ST

    UNI FILTER

    $24.95
    Stock air filters restrict flow and require frequent replacement—a performance penalty you don't have to accept. The UNI FILTER NU-2606ST delivers superior airflow while actually stopping more dirt than OEM filters, giving your KLX230R the breathing room...
    10114404
    SKU:
    10114404
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FILTER SHAPE:
    PANEL
    FILTER SHAPE:
    TRAPEZOID
    STYLE:
    STANDARD
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    FEATURES:
    WASHABLE
    TYPE:
    STAGE II
    UNITS:
    EACH
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    Subtotal:
  • UNI FILTER Air Filter - Yamaha NU-3272ST

    UNI FILTER Air Filter - Yamaha NU-3272ST

    UNI FILTER

    $34.95
    The UNI FILTER Air Filter (NU-3272ST) delivers superior airflow and filtration in a reusable design that eliminates disposable filter waste. By choosing a two-stage, cleanable filter, you gain precise engine protection while reducing long-term...
    10114405
    SKU:
    10114405
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    COLOR/FINISH:
    RED
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    RECTANGULAR
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • UNI FILTER Air Filter - CRF250R/X NU-4150ST

    UNI FILTER Air Filter - CRF250R/X NU-4150ST

    UNI FILTER

    $37.95
    Stock air filters restrict your CRF250R/X's breathing and require replacement every season—wasting money and performance. The UNI FILTER NU-4150ST delivers superior airflow while trapping more dirt, and its reusable design eliminates ongoing filter costs...
    10114423
    SKU:
    10114423
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    BASE COLOR:
    RED
    FILTER SHAPE:
    OVAL
    PRODUCT NAME:
    AIR FILTER
    TYPE:
    STAGE II
    UNITS:
    EACH
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Air Filter - CRF110F NU-4151ST

    UNI FILTER Air Filter - CRF110F NU-4151ST

    UNI FILTER

    $24.95
    A quality air filter is fundamental to engine performance—it protects your CRF110F from contamination while maximizing airflow to the carburetor. The UNI FILTER NU-4151ST delivers superior filtration and unrestricted breathing in a reusable design that...
    10114424
    SKU:
    10114424
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER SHAPE:
    RECTANGULAR
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    $24.95
    Qty in Cart: 0
    Quantity:
    Price:
    $24.95
    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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