Dirt Bike Air Filters and Parts
Dirt Bike Air Filters & Parts for Honda, Suzuki, Yamaha & KTM at JJ Motorsports
Boost your dirt bike's engine performance and longevity with premium air filters and parts from JJ Motorsports. Our selection includes high-flow OEM-style air filters, pre-filters, filter skins, and maintenance kits designed for superior dust protection, increased airflow, and easy cleaning in motocross, enduro, and trail riding. Compatible with top brands like Honda CRF, Suzuki RM, Yamaha YZ/WR, and KTM SX/EXC models, these durable foam and paper elements ensure cleaner air intake, better throttle response, and reduced engine wear in dusty conditions. From Twin Air's legendary foam filters to Uni Filter's dual-layer designs, we have the parts to keep your 2-stroke or 4-stroke running at peak power.
Shop trusted brands like Twin Air, Uni Filter, and Pro Filter for race-proven quality. Explore related categories such as dirt bike air and fuel for carburetors and jets or dirt bike engines and components for rebuild kits.
Top Dirt Bike Air Filters & Parts
- Twin Air Standard Air Filter Suzuki RM250 2001-2008 153108 – High-quality dual-stage foam air filter for Suzuki RM250 models, providing excellent filtration and airflow for optimal engine performance.
- Twin Air Standard Air Filter Honda CRF250R 2004-2007 150012 – Precision-engineered foam filter for Honda CRF250R, featuring oil-impregnated layers for superior dust trapping and easy maintenance.
- Pro Filter Premium Air Filter Yamaha MTX200 1986-1990 2010-03 – Premium dual-bonded foam air filter for Yamaha MTX200, designed for maximum airflow and protection in off-road conditions.
- Uni Filter Air Filter 1-7/8" x 2-1/16" x 3" PK-82 – Compact foam air filter with 1-7/8" inlet, 2-1/16" outlet, and 3" height, ideal for custom or small-displacement dirt bike applications.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
UNI FILTER Filter - CR125/250 NU-4078ST
UNI FILTER
$37.95The UNI FILTER CR125/250 NU-4078ST delivers superior airflow while maintaining aggressive filtration—exactly what your two-stroke needs to breathe without pulling in abrasive dirt. Built for indefinite reuse with simple maintenance, this two-stage design...NU4078ST- SKU:
- NU4078ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- CYLINDER
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER MEDIA MATERIAL:
- FOAM
- BASE COLOR:
- RED
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$37.95Qty in Cart: 0Quantity:Price:$37.95Subtotal: -
UNI FILTER Filter - CRF150/230F NU-4137ST
UNI FILTER
$33.95A quality air filter directly impacts engine performance, throttle response, and longevity—especially on high-demand engines like the CRF150/230F. The UNI Filter NU-4137ST delivers superior airflow while trapping dirt more effectively than OEM filters,...NU4137ST- SKU:
- NU4137ST
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FILTER SHAPE:
- RECTANGULAR
$33.95 -
UNI FILTER Air Filter - Suzuki DR650 NU-2488ST
UNI FILTER
$35.95The UNI FILTER NU-2488ST delivers superior airflow to your DR650 without sacrificing filtration—meaning better throttle response and engine breathing while keeping dirt out of your combustion chamber. Unlike disposable filters that create mounting waste,...10110765- SKU:
- 10110765
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE COLOR:
- RED
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- TEARDROP
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$35.95 -
UNI FILTER Air Filter - Honda XR200 NU-4058ST
UNI FILTER
$21.95A properly flowing air filter is fundamental to maintaining peak engine performance and longevity on your Honda XR200. The UNI Filter NU-4058ST delivers superior airflow while maintaining aggressive filtration, ensuring your engine gets clean air without...10113317- SKU:
- 10113317
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$21.95 -
UNI FILTER Air Filter - Bultaco Alpina NU-3208
UNI FILTER
$21.95A quality air filter is the first line of defense for your engine's longevity and performance. The UNI FILTER NU-3208 delivers unrestricted airflow while trapping dirt and contaminants, keeping your Bultaco Alpina's fuel mixture clean and combustion...10112497- SKU:
- 10112497
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLUE
- FILTER SHAPE:
- TRAPEZOID
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- UNI-SEAL
- UNITS:
- EACH
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
UNI FILTER Air Filter - Honda CR125 '75 NU-4022ST
UNI FILTER
$35.95The UNI FILTER Air Filter for Honda CR125 '75 delivers superior airflow without sacrificing filtration—meaning your engine breathes easier while staying protected from dirt and contaminants. Built for reusability and designed to fit your stock airbox...10112502- SKU:
- 10112502
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- RED
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- FILTER SHAPE:
- OVAL
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- UNITS:
- EACH
$35.95Qty in Cart: 0Quantity:Price:$35.95Subtotal: -
UNI FILTER Air Filter - Maico All Models '34-'79 NU-1201ST
UNI FILTER
$37.95Stock air filters restrict airflow and require frequent replacement—a UNI FILTER gives you superior filtration without sacrificing breathing room. The two-stage design separates for thorough cleaning, and the reusable construction eliminates disposable...10112511- SKU:
- 10112511
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- TYPE:
- STAGE II
$37.95 -
UNI FILTER Air Filter - Yamaha YZ125 '79 NU-2243ST
UNI FILTER
$33.95A quality air filter is non-negotiable for YZ125 performance—it directly impacts throttle response, engine longevity, and power delivery. The UNI Filter NU-2243ST delivers superior airflow while maintaining effective dirt separation, all while remaining...10112518- SKU:
- 10112518
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- COLOR/FINISH:
- RED
- FILTER MEDIA STYLE:
- DUAL-LAYER
- BASE COLOR:
- RED
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
$33.95Qty in Cart: 0Quantity:Price:$33.95Subtotal: -
UNI FILTER Air Filter - Yamaha '73-'74 NU-2212
UNI FILTER
$35.95Stock air filters restrict airflow and require frequent replacement—the UNI FILTER NU-2212 eliminates both issues with a reusable two-stage design that delivers superior filtration and airflow for your '73-'74 Yamaha. By switching to a high-flow filter...10112520- SKU:
- 10112520
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- COLOR/FINISH:
- YELLOW
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- STREET
- BASE COLOR:
- YELLOW
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
$35.95 -
UNI FILTER Air Filter - Yamaha NU-2241ST
UNI FILTER
$35.95Stock air filters sacrifice airflow for mediocre filtration—this UNI FILTER delivers both. The two-stage design maximizes intake volume while trapping dirt more effectively than OEM filters, giving your Yamaha the breathing room it needs for consistent...10112524- SKU:
- 10112524
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- RED
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- FILTER SHAPE:
- OVAL
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
$35.95 -
UNI FILTER Air Filter NU-1418ST
UNI FILTER
$37.95The UNI FILTER NU-1418ST delivers superior airflow and filtration without sacrificing engine breathing—a critical advantage whether you're pushing your engine on the track or maximizing daily driver efficiency. Unlike disposable filters, this two-stage...10112478- SKU:
- 10112478
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- RECTANGULAR
- FILTER SHAPE:
- ROUND
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- FOAM
$37.95 -
Pro Circuit Backfire Screen Eliminator Kit Kawasaki KX250F 2006-2014 PC4012-0001
PRO CIRCUIT
$39.95The restrictive wire screen in your stock air filter cage is costing you horsepower and throttle response. The PRO CIRCUIT Backfire Screen Eliminator Kit removes this bottleneck, delivering measurable gains in airflow and engine efficiency on your...10110777- SKU:
- 10110777
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- TEXTILE
- TYPE:
- BACKFIRE SCREEN ELIMINATOR
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COLOR/FINISH:
- GREEN
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
MOOSE RACING Pre-Oiled Precision Air Filter - YZ65 P1-80-08
MOOSE RACING
$33.95Engine protection starts with air filtration, and the MOOSE RACING Pre-Oiled Precision Air Filter eliminates the guesswork from filter prep. Factory pre-oiling ensures optimal dirt trapping without excess oil saturation that kills horsepower—your YZ65...10114239- SKU:
- 10114239
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- BASE COLOR:
- BLUE
- FILTER MEDIA STYLE:
- PRE-OILED
- FILTER SHAPE:
- ROUND
- COLOR/FINISH:
- BLUE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- PRECISION
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$33.95Qty in Cart: 0Quantity:Price:$33.95Subtotal: -
MOOSE RACING Triple Foam Air Filter - KTM 1-50-45TRI
MOOSE RACING
$40.95Factory off-road teams trust the MOOSE RACING Triple Foam Air Filter because it delivers superior protection in the harshest environments—mud, sand, silt, and water—without sacrificing airflow or requiring constant replacement. The triple-stage foam...10112577- SKU:
- 10112577
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- TRIPLE-LAYER
- BASE COLOR:
- BLACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$40.95Qty in Cart: 0Quantity:Price:$40.95Subtotal: -
MOOSE RACING Triple Foam Air Filter - Yamaha 1-80-44TRI
MOOSE RACING
$40.95Factory off-road teams don't compromise on air filtration—and neither should you. The MOOSE RACING Triple Foam Air Filter delivers three-stage protection against the harshest environments, eliminating restrictive dust covers while maintaining peak engine...10112588- SKU:
- 10112588
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- FILTER MEDIA MATERIAL:
- FOAM
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- FILTER MEDIA STYLE:
- TRIPLE-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- FEATURES:
- WASHABLE
- RIDING STYLE:
- OFF-ROAD
$40.95 -
MOOSE RACING Triple Precision Pre-Oiled Air Filter - Yamaha P1-80-44TRI
MOOSE RACING
$44.95Off-road conditions demand filtration that won't compromise engine protection or performance. The MOOSE RACING Triple Precision Pre-Oiled Air Filter uses a three-stage foam design to eliminate the need for restrictive dust covers while delivering...10112618- SKU:
- 10112618
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- FEATURES:
- PRE-OILED
- FILTER MEDIA MATERIAL:
- FOAM
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- FILTER MEDIA STYLE:
- TRIPLE-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- FEATURES:
- WASHABLE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$44.95 -
MOOSE RACING Air Filter - Honda 1-20-40
MOOSE RACING
$29.95A quality air filter is your engine's first line of defense against contamination, directly impacting horsepower delivery and engine longevity. The MOOSE RACING 1-20-40 uses a proven dual-foam design that balances aggressive particle capture with...M7612040- SKU:
- M7612040
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
$29.95 -
K & N Drycharger - RZR XP1000 PL-1014-1DK
K & N
$36.99Running your RZR XP1000 in high-dust environments will clog a standard air filter quickly, forcing premature changes and risking unfiltered air ingestion. The K&N Drycharger wrap extends your Filtercharger's service life while maintaining the airflow...10113513- SKU:
- 10113513
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FILTER HEIGHT METRIC:
- 283.00 MM
- FILTER SHAPE:
- ROUND
- MODEL:
- DRYCHARGER
- RIDING STYLE:
- UTV
- BASE COLOR:
- BLACK
- FILTER MEDIA STYLE:
- SINGLE-LAYER
- COLOR/FINISH:
- BLACK
- FEATURES:
- WASHABLE
- FILTER HEIGHT IMPERIAL:
- 11.125'
- INSIDE DIAMETER METRIC:
- 76.00 MM
- MATERIAL:
- SILICONE-TREATED POLYESTER
- STYLE:
- CLAMP-ON
- FILTER MEDIA MATERIAL:
- POLYESTER
- PRODUCT NAME:
- FILTER WRAP
- RIDING STYLE:
- ATV
- TYPE:
- DUST COVER
- UNITS:
- EACH
$36.99Qty in Cart: 0Quantity:Price:$36.99Subtotal: -
K & N Air Filter - Arctic Cat AC-7009
K & N
$119.99Your Arctic Cat's airflow is only as good as what you're breathing through it. The K&N AC-7009 replaces restrictive OEM filtration with a high-flow pleated media design that boosts performance without requiring fuel system tuning. Built with a precision...10112966- SKU:
- 10112966
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- BASE COLOR:
- BLACK
- BASE COLOR:
- RED
- INSIDE DIAMETER METRIC:
- -
- PANEL OUTSIDE DIMENSIONS (LENGTH X WIDTH) IMPERIAL:
- 10.625' X 7.625'
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- UTV
- FILTER MEDIA MATERIAL:
- COTTON GAUZE
- FEATURES:
- WASHABLE
- INSIDE DIAMETER:
- -
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER HEIGHT IMPERIAL:
- 0.688'
- FILTER SHAPE:
- PANEL
- INSIDE DIAMETER IMPERIAL:
- -
- MODEL:
- HIGH-FLOW
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$119.99Qty in Cart: 0Quantity:Price:$119.99Subtotal: -
NO TOIL Air Filter 270-05
NO TOIL
$30.95A quality air filter is your engine's first line of defense against dust, debris, and contaminants that rob power and throttle response. The NO TOIL 270-05 delivers superior filtration and airflow in a durable, maintenance-friendly design that handles...10110097- SKU:
- 10110097
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- BASE COLOR:
- WHITE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- RECTANGULAR
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- DUAL-STAGE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- FLAME LAMINATED
$30.95
