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 - Suzuki DRZ250 '01-'07 NU-2482ST
UNI FILTER
$37.95The 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 -
UNI FILTER Filter - XR NU-4074ST
UNI FILTER
$42.95Stock 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 -
UNI FILTER Filter - XR600R NU-4075ST
UNI FILTER
$42.95The 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 -
UNI FILTER Filter Air - Yamaha TTR50 NU-3257ST
UNI FILTER
$12.95The 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
$12.95Qty in Cart: 0Quantity:Price:$12.95Subtotal: -
UNI FILTER Air Filter - RZR 900 XP NU-8516ST
UNI FILTER
$79.95The 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 -
UNI FILTER Air Filter Kit - Black (4) PK-3
UNI FILTER
$74.95Direct-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 -
UNI FILTER Air Filter Kit - Black (4) PK-4
UNI FILTER
$74.95Upgrading 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
$74.95Qty in Cart: 0Quantity:Price:$74.95Subtotal: -
UNI FILTER Air Filter - CRF125F NU-4147ST
UNI FILTER
$33.95Stock 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 -
UNI FILTER Air Filter - Honda XR250 NU-4038
UNI FILTER
$21.95A clean, efficient air filter is fundamental to maintaining peak engine performance and fuel economy on your XR250. The UNI Filter NU-4038 uses an open-cell polyurethane construction that delivers superior airflow while maintaining reliable...10113312- SKU:
- 10113312
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- COLOR/FINISH:
- BLACK
- FILTER SHAPE:
- CYLINDER
- MODEL:
- OEM
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- BASE COLOR:
- BLACK
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
UNI FILTER Air Filter - Honda XL185S NU-4041
UNI FILTER
$21.95The UNI FILTER NU-4041 is engineered specifically for the Honda XL185S, delivering the airflow efficiency your engine demands without sacrificing filtration quality. Its open-cell polyurethane construction maintains peak air intake while trapping...10113316- SKU:
- 10113316
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$21.95 -
UNI FILTER Air Filter - Beta 250/400 NU-3804ST
UNI FILTER
$38.95Stock air filters restrict airflow and reduce power output—especially critical on high-revving dirt bikes where every breath matters. The UNI FILTER NU-3804ST delivers maximum airflow without compromising filtration, keeping your Beta 250/400 running...10113318- SKU:
- 10113318
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- FILTER SHAPE:
- ROUND
- COLOR/FINISH:
- BLACK
- FILTER MEDIA MATERIAL:
- FOAM
- COLOR/FINISH:
- RED
- MODEL:
- OEM
- RIDING STYLE:
- STREET
- TYPE:
- REPLACEMENT
- UNITS:
- EACH
$38.95Qty in Cart: 0Quantity:Price:$38.95Subtotal: -
UNI FILTER Air Filter - Beta 350/400 NU-3805ST
UNI FILTER
$38.95A quality air filter directly impacts engine performance, throttle response, and fuel efficiency—especially in high-demand racing applications where every cubic foot of air matters. The UNI FILTER NU-3805ST delivers maximum airflow without sacrificing...10113319- SKU:
- 10113319
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- REPLACEMENT
- UNITS:
- EACH
- MODEL:
- OEM
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- BASE COLOR:
- RED
- FILTER SHAPE:
- ROUND
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$38.95 -
UNI FILTER Air Filter - Gas Gas NU-3806ST
UNI FILTER
$38.95A properly functioning air filter is non-negotiable for consistent engine performance and longevity. The UNI FILTER NU-3806ST delivers unrestricted airflow to your Gas Gas while maintaining filtration efficiency, preventing dust and debris from...10113320- SKU:
- 10113320
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- FILTER MEDIA MATERIAL:
- FOAM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- FILTER SHAPE:
- ROUND
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- RED
- MODEL:
- OEM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$38.95 -
UNI FILTER Air Filter - Honda CRF110 NU-4146ST
UNI FILTER
$20.95A quality air filter is your engine's first line of defense against dirt, dust, and contaminants that rob performance and reduce engine life. The UNI FILTER NU-4146ST delivers superior filtration for your Honda CRF110 without sacrificing the airflow your...10113321- SKU:
- 10113321
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- YELLOW
- FILTER SHAPE:
- PANEL
- MODEL:
- OEM
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- REPLACEMENT
- BASE COLOR:
- RED
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
UNI FILTER Air Filter - KX450/250F NU-2603ST
UNI FILTER
$37.95A quality air filter is foundational to engine health and performance—it's your first line of defense against dirt ingestion while maximizing airflow to the combustion chamber. The UNI FILTER NU-2603ST delivers superior filtration and flow for KX450/250F...10113621- SKU:
- 10113621
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ODD
- FILTER SHAPE:
- ROUND
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
$37.95 -
UNI FILTER Air Filter - Bultaco Persang NU-3204ST
UNI FILTER
$35.95A quality air filter is foundational to engine performance—it directly impacts airflow, throttle response, and longevity of your engine internals. The UNI FILTER NU-3204ST delivers superior filtration for your Bultaco Persang without sacrificing the...10112495- SKU:
- 10112495
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- RED
- MODEL:
- UNI-SEAL
- PRODUCT NAME:
- AIR FILTER
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- COMPETITION
- TYPE:
- MULTI STAGE
- UNITS:
- EACH
$35.95 -
UNI FILTER Air Filter - Can-Am NU-8001ST
UNI FILTER
$35.95The UNI FILTER Air Filter for Can-Am delivers superior airflow while maintaining effective dirt filtration—a combination that directly improves engine responsiveness and fuel efficiency. Unlike disposable filters that demand constant replacement, this...10112498- SKU:
- 10112498
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- STYLE:
- COMPETITION
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$35.95 -
UNI FILTER Air Filter - CZ NU-1801ST
UNI FILTER
$37.95A quality air filter is fundamental to engine performance—restricting airflow costs you horsepower and throttle response. The UNI FILTER NU-1801ST delivers unrestricted flow while maintaining superior filtration, and its reusable design eliminates the...10112499- SKU:
- 10112499
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER FOR EUROPEAN MODELS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- UNITS:
- EACH
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
$37.95 -
UNI FILTER Air Filter - Honda CT90/110 NU-4016
UNI FILTER
$21.95Stock air filters restrict airflow and demand frequent replacement—a constant drain on performance and your wallet. The UNI FILTER NU-4016 delivers superior filtration and airflow for your Honda CT90/110 while remaining reusable indefinitely, eliminating...10112500- SKU:
- 10112500
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLUE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- TYPE:
- STAGE II
$21.95 -
UNI FILTER Air Filter - CR125 '74 NU-4010
UNI FILTER
$35.95A quality air filter is fundamental to engine performance—it directly impacts throttle response, fuel efficiency, and engine longevity by preventing abrasive particulates from entering your combustion chamber. The UNI FILTER CR125 '74 NU-4010 delivers...10112501- SKU:
- 10112501
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- BASE COLOR:
- BLUE
- FILTER SHAPE:
- OVAL
- TYPE:
- STAGE II
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- STANDARD
$35.95
