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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 - KDX/KX NU-2338ST

    UNI FILTER Filter - KDX/KX NU-2338ST

    UNI FILTER

    $33.95
    The UNI FILTER NU-2338ST delivers measurable airflow gains while maintaining superior dirt-stopping capability—critical for KDX/KX riders who demand consistent performance in varied riding conditions. Unlike disposable filters, this two-stage design...
    NU2338ST
    SKU:
    NU2338ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STYLE:
    COMPETITION
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    FILTER SHAPE:
    ROUND
    TYPE:
    STAGE II
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Filter - KX/KDX80 NU-2347ST

    UNI FILTER Filter - KX/KDX80 NU-2347ST

    UNI FILTER

    $33.95
    Stock air filters restrict airflow and require frequent replacement—a costly cycle that impacts engine performance. The UNI FILTER NU-2347ST eliminates this problem with a reusable design that delivers superior filtration while maintaining the high...
    NU2347ST
    SKU:
    NU2347ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FEATURES:
    WASHABLE
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    FILTER SHAPE:
    ROUND
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Filter - KLX/DRZ110 NU-2395ST

    UNI FILTER Filter - KLX/DRZ110 NU-2395ST

    UNI FILTER

    $15.95
    A quality air filter is fundamental to engine performance—it directly impacts throttle response, fuel efficiency, and engine longevity. The UNI FILTER NU-2395ST delivers superior airflow while maintaining effective dirt separation, giving your KLX or...
    NU2395ST
    SKU:
    NU2395ST
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    FILTER SHAPE:
    TRIANGULAR
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    ODD
    MODEL:
    UNI-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • UNI FILTER Filter - PE/RM 250 NU-2417ST

    UNI FILTER Filter - PE/RM 250 NU-2417ST

    UNI FILTER

    $34.95
    The UNI FILTER PE/RM 250 NU-2417ST delivers the airflow your engine demands while maintaining exceptional filtration—a critical balance that directly impacts throttle response and power delivery. Unlike disposable filters that force you into recurring...
    NU2417ST
    SKU:
    NU2417ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER SHAPE:
    CYLINDER
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • UNI FILTER Filter - RM/PE NU-2430ST

    UNI FILTER Filter - RM/PE NU-2430ST

    UNI FILTER

    $34.95
    A quality air filter is the first line of defense for your engine's longevity and performance. The UNI FILTER RM/PE NU-2430ST delivers superior airflow while maintaining effective filtration, meaning your engine breathes easier without compromising...
    NU2430ST
    SKU:
    NU2430ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    CYLINDER
    BASE COLOR:
    RED
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    $34.95
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • UNI FILTER Filter - Suzuki NU-2433ST

    UNI FILTER Filter - Suzuki NU-2433ST

    UNI FILTER

    $34.95
    Stock air filters compromise airflow and require frequent replacement—a costly cycle that impacts both performance and your bottom line. The UNI FILTER NU-2433ST delivers superior filtration without sacrificing breathing room, and its reusable design...
    NU2433ST
    SKU:
    NU2433ST
    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
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
  • UNI FILTER Filter - RM250/465/500 NU-2434ST

    UNI FILTER Filter - RM250/465/500 NU-2434ST

    UNI FILTER

    $28.95
    A quality air filter is fundamental to engine performance—it directly impacts horsepower delivery, throttle response, and longevity. The UNI FILTER RM250/465/500 delivers superior airflow while maintaining aggressive dirt-stopping capability, giving you...
    NU2434ST
    SKU:
    NU2434ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    BLACK
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    TRAPEZOID
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER SHAPE:
    PANEL
    $28.95
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
  • UNI FILTER Air Filter - Suzuki NU-2455ST

    UNI FILTER Air Filter - Suzuki NU-2455ST

    UNI FILTER

    $33.95
    Stock air filters restrict airflow and require constant replacement—a cycle that costs time and money. The UNI FILTER NU-2455ST eliminates this inefficiency with a cleanable, reusable design that delivers superior filtration without sacrificing breathing...
    NU2455ST
    SKU:
    NU2455ST
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BASE COLOR:
    RED
    FILTER SHAPE:
    TAPERED
    FILTER SHAPE:
    CYLINDER
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER MEDIA MATERIAL:
    FOAM
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Fitler - RM/RMX '90-'92 NU-2467ST

    UNI FILTER Fitler - RM/RMX '90-'92 NU-2467ST

    UNI FILTER

    $35.95
    The UNI FILTER RM/RMX '90-'92 delivers superior airflow without sacrificing filtration, keeping your engine breathing clean while maintaining OEM compatibility. Unlike disposable filters that force repeated replacements, this two-stage reusable filter...
    NU2467ST
    SKU:
    NU2467ST
    Availability:
    Ships Same Business Day
    Weight:
    0.31 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STYLE:
    COMPETITION
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    FILTER SHAPE:
    ROUND
    TYPE:
    STAGE II
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Filter - DR250/350 NU-2468ST

    UNI FILTER Filter - DR250/350 NU-2468ST

    UNI FILTER

    $33.95
    A quality air filter is fundamental to engine performance—it directly impacts airflow, throttle response, and fuel efficiency. The UNI FILTER DR250/350 NU-2468ST delivers superior filtration without the replacement costs of disposable filters, using a...
    NU2468ST
    SKU:
    NU2468ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    BASE COLOR:
    RED
    FILTER SHAPE:
    OVAL
    FILTER SHAPE:
    RECTANGULAR
    PRODUCT NAME:
    AIR FILTER
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • UNI FILTER Filter - RM125/250 NU-2474ST

    UNI FILTER Filter - RM125/250 NU-2474ST

    UNI FILTER

    $37.95
    Stock air filters restrict airflow and require replacement after every few rides—UNI filters solve both problems. The two-stage design maximizes flow while capturing dirt more effectively than OEM, and you'll never buy another filter again since it...
    NU2474ST
    SKU:
    NU2474ST
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    FILTER SHAPE:
    ROUND
    MODEL:
    ULTRA-SEAL
    STYLE:
    COMPETITION
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER MEDIA STYLE:
    DUAL-LAYER
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Filter - Kawasaki/Suzuki NU-2480ST

    UNI FILTER Filter - Kawasaki/Suzuki NU-2480ST

    UNI FILTER

    $35.95
    The UNI FILTER NU-2480ST delivers measurable airflow gains while maintaining superior filtration for your Kawasaki or Suzuki application. Unlike disposable OEM filters, this reusable design pays for itself through multiple service cycles—simply clean...
    NU2480ST
    SKU:
    NU2480ST
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    ROUND
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    ULTRA-SEAL
    $35.95
    Qty in Cart: 0
    Quantity:
    Price:
    $35.95
    Subtotal:
  • UNI FILTER Filter - Suzuki DRZ250 '01-'07 NU-2482ST

    UNI FILTER Filter - Suzuki DRZ250 '01-'07 NU-2482ST

    UNI FILTER

    $37.95
    The UNI FILTER for your Suzuki DRZ250 delivers measurable gains in airflow while maintaining superior filtration—critical for maintaining engine responsiveness and longevity. Unlike disposable filters, this reusable design pays for itself over time and...
    NU2482ST
    SKU:
    NU2482ST
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MODEL:
    UNI-SEAL
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    UNITS:
    EACH
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    FILTER SHAPE:
    RECTANGULAR
    $37.95
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • UNI FILTER Filter - XR NU-4074ST

    UNI FILTER Filter - XR NU-4074ST

    UNI FILTER

    $42.95
    Stock air filters restrict your engine's breathing and require constant replacement—a cycle that wastes money and leaves you vulnerable to performance drops. The UNI FILTER XR NU-4074ST delivers unrestricted airflow while actually stopping more dirt than...
    NU4074ST
    SKU:
    NU4074ST
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    FILTER SHAPE:
    OVAL
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • UNI FILTER Filter - XR600R NU-4075ST

    UNI FILTER Filter - XR600R NU-4075ST

    UNI FILTER

    $42.95
    The UNI FILTER NU-4075ST delivers superior airflow and filtration for your XR600R without compromising engine breathing. Unlike disposable filters that choke performance over time, this reusable design maintains consistent air delivery across countless...
    NU4075ST
    SKU:
    NU4075ST
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    RIDING STYLE:
    OFF-ROAD
    BASE COLOR:
    RED
    PRODUCT NAME:
    AIR FILTER
    FILTER SHAPE:
    OVAL
    STYLE:
    COMPETITION
    TYPE:
    STAGE II
    $42.95
    Qty in Cart: 0
    Quantity:
    Price:
    $42.95
    Subtotal:
  • UNI FILTER Filter Air - Yamaha TTR50 NU-3257ST

    UNI FILTER Filter Air - Yamaha TTR50 NU-3257ST

    UNI FILTER

    $12.95
    The UNI FILTER NU-3257ST keeps your Yamaha TTR50 breathing clean air while dramatically reducing maintenance hassles. Unlike disposable filters, this two-stage design is fully reusable—clean it with simple dishwashing detergent, re-oil, and install it...
    10110766
    SKU:
    10110766
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    BASE COLOR:
    RED
    FILTER MEDIA MATERIAL:
    FOAM
    COLOR/FINISH:
    RED
    FILTER SHAPE:
    PANEL
    FEATURES:
    WASHABLE
    FILTER MEDIA STYLE:
    DUAL-LAYER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $12.95
    Subtotal:
  • UNI FILTER Air Filter - RZR 900 XP NU-8516ST

    UNI FILTER Air Filter - RZR 900 XP NU-8516ST

    UNI FILTER

    $79.95
    The UNI FILTER Air Filter for RZR 900 XP delivers measurably higher airflow than OEM alternatives while maintaining effective dirt exclusion—critical for maintaining peak engine performance in high-demand riding conditions. Its two-stage, reusable design...
    10112887
    SKU:
    10112887
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    $79.95
    Qty in Cart: 0
    Quantity:
    Price:
    $79.95
    Subtotal:
  • UNI FILTER Air Filter Kit - Black (4) PK-3

    UNI FILTER Air Filter Kit - Black (4) PK-3

    UNI FILTER

    $74.95
    Direct-flow pod filters deliver measurable gains in air intake efficiency and throttle response by eliminating restrictive factory airbox geometry. The UNI FILTER Air Filter Kit enhances both performance and aesthetics, allowing your bike to breathe more...
    10112890
    SKU:
    10112890
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    $74.95
    Qty in Cart: 0
    Quantity:
    Price:
    $74.95
    Subtotal:
  • UNI FILTER Air Filter Kit - Black (4) PK-4

    UNI FILTER Air Filter Kit - Black (4) PK-4

    UNI FILTER

    $74.95
    Upgrading to pod-style air filters delivers measurable gains in intake flow and throttle response while providing the aesthetic upgrade your bike deserves. The UNI FILTER Air Filter Kit eliminates restrictive factory airbox components, allowing your...
    10112891
    SKU:
    10112891
    Availability:
    Ships Same Business Day
    Weight:
    0.61 LBS
    $74.95
    Qty in Cart: 0
    Quantity:
    Price:
    $74.95
    Subtotal:
  • UNI FILTER Air Filter - CRF125F NU-4147ST

    UNI FILTER Air Filter - CRF125F NU-4147ST

    UNI FILTER

    $33.95
    Stock air filters restrict airflow and require frequent replacement—a real performance killer on a track or trail. The UNI FILTER NU-4147ST delivers unrestricted airflow while trapping more dirt, meaning fewer filter changes and better engine breathing...
    10113181
    SKU:
    10113181
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    FILTER MEDIA STYLE:
    DUAL-LAYER
    FILTER SHAPE:
    CYLINDER
    UNITS:
    EACH
    FEATURES:
    WASHABLE
    FILTER MEDIA MATERIAL:
    FOAM
    MODEL:
    ULTRA-SEAL
    PRODUCT NAME:
    AIR FILTER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STAGE II
    BASE COLOR:
    RED
    STYLE:
    STANDARD
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    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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