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 Air Filter - CR125 '74 NU-4010
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - CR125/250 '75-'78 NU-4025ST
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112503- SKU:
- 10112503
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- BASE COLOR:
- RED
- FILTER SHAPE:
- ODD
- FILTER SHAPE:
- OVAL
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
$35.95 -
UNI FILTER Air Filter - CR125R '79-'80 NU-4044ST
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112504- SKU:
- 10112504
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- TYPE:
- STAGE II
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
$35.95 -
UNI FILTER Air Filter - CR250 '73-'74 NU-4008
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112505- SKU:
- 10112505
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLUE
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FEATURES:
- WASHABLE
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
$35.95 -
UNI FILTER Air Filter - CR250 '78-'80 NU-4035ST
UNI FILTER
$29.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112506- SKU:
- 10112506
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- ODD
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- STAGE II
- FILTER MEDIA STYLE:
- DUAL-LAYER
- STYLE:
- STANDARD
- BASE COLOR:
- RED
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- FILTER SHAPE:
- CYLINDER
$29.95 -
UNI FILTER Air Filter - Husqvarna NU-1001ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112507- SKU:
- 10112507
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE COLOR:
- RED
- FILTER MEDIA MATERIAL:
- FOAM
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- CYLINDER
- MODEL:
- ULTRA-SEAL
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- EACH
$37.95 -
UNI FILTER Air Filter - Husqvarna NU-1002ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112508- SKU:
- 10112508
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- FEATURES:
- WASHABLE
- FILTER MEDIA STYLE:
- DUAL-LAYER
- MODEL:
- ULTRA-SEAL
- STYLE:
- COMPETITION
- TYPE:
- MULTI STAGE
- BASE COLOR:
- RED
- FILTER SHAPE:
- CYLINDER
- PRODUCT NAME:
- AIR FILTER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
$37.95 -
UNI FILTER Air Filter - Husqvarna '79-'82 NU-1003ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112509- SKU:
- 10112509
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- BASE COLOR:
- RED
- PRODUCT NAME:
- AIR FILTER
- STYLE:
- STANDARD
- TYPE:
- STAGE II
- FEATURES:
- WASHABLE
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- ULTRA-SEAL
- RIDING STYLE:
- OFF-ROAD
- FILTER MEDIA STYLE:
- DUAL-LAYER
- FILTER SHAPE:
- CYLINDER
- UNITS:
- EACH
$37.95 -
UNI FILTER Air Filter - Maico '80-'81 NU-1202ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112512- SKU:
- 10112512
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- FEATURES:
- WASHABLE
- FILTER SHAPE:
- RECTANGULAR
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- COMPETITION
- FILTER MEDIA STYLE:
- DUAL-LAYER
- TYPE:
- MULTI STAGE
- BASE COLOR:
- RED
- FILTER SHAPE:
- ELONGATED
- PRODUCT NAME:
- AIR FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- FOAM
- MODEL:
- UNI-SEAL
$37.95 -
UNI FILTER Air Filter - Penton 125/175 NU-1401ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - Suzuki TM250/400 NU-2408
UNI FILTER
$21.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
UNI FILTER Air Filter - Yamaha YZ80 '78-'80 NU-2239ST
UNI FILTER
$33.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - Yamaha YZ80 '81-'82 NU-2249ST
UNI FILTER
$31.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - Yamaha NU-2237ST
UNI FILTER
$31.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - TY250 Trails NU-2218
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - YZ/IT250/400 NU-2235ST
UNI FILTER
$35.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - TT/XT500 '77-'81 NU-2225ST
UNI FILTER
$33.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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 -
UNI FILTER Air Filter - Husqvarna NU-1010ST
UNI FILTER
$45.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...10112685- SKU:
- 10112685
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$45.95 -
UNI FILTER Air Filter - SX/TC 50 NU-1419ST
UNI FILTER
$14.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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
$14.95 -
UNI FILTER Filter - Honda CRF150R NU-4141ST
UNI FILTER
$37.95Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse indefinitely, Two-stage air filters come apart for maximum airflow and ultimate cleaning, Most filters feature the Ultra Seal grease groove on the sealing surface,...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