BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | OFFROAD FUEL/AIR SYSTEMS FUEL/AIR SYSTEMS 1598 DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 4-6 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. FITS MODEL STANDARD PRE-OILED YAMAHA (CONT) WR250F 03-14 152215 1011-0580 WR250F 15-19 1011-3130 1011-3131 WR250F 20-24 1011-4034 - WR250F 25 1011-4791 1011-4794 WR250R/X 08-20 152384 - YZ250 87 22630 - YZ250 89-92 22000 - YZ250 93-94 22-001 - YZ250 95-96 22002 - YZ250 97-22 22633 1011-0579 YZ250F 01-13 22633 1011-0579 YZ250F 14-18 1011-3130 1011-3131 YZ250F 19-23 1011-4034 - YZ250F 24-25 1011-4791 1011-4794 YZ250FX 15-19 1011-3130 1011-3131 YZ250FX 20-25 1011-4034 - YZ250X 16-25 22633 1011-0579 FITS MODEL STANDARD PRE-OILED YAMAHA (CONT) WR/YZ400F 98-99 22633 1011-0579 WR/YZ426F 00-02 22633 1011-0579 WR450F 03-12 152215 1011-0580 WR450F 16-18 1011-3130 1011-3131 WR450F 19-23 1011-4034 1011-4316 WR450F 24-25 1011-4791 1011-4794 YZ450F 03-09 22633 1011-0579 YZ450F 10-13 1011-1911 - YZ450F 14-17 1011-3130 1011-3131 YZ450F 18-22 1011-4034 1011-4316 YZ450F 23-25 1011-4791 1011-4794 YZ450FX 17-18 1011-3130 1011-3131 YZ450FX 19-23 1011-4034 1011-4316 YZ450FX 24-25 1011-4791 1011-4794 YZ490 87-90 22630 - WR500 91-93 22000 - AIR FILTERS • Unsurpassed in airflow, dirt stopping and overall performance •Two-stage air filters come apart for maximum airflow and ultimate cleaning •Most filters feature the Ultra Seal grease groove on the sealing surface •Each fits in stock air box exactly like OEM filter •Clean easily with grease-cutting dishwashing detergent; just clean, oil and reuse •Made in the U.S.A. FITS MODEL PART # BETA All RR 2T 13-23 1011-33191 125/200/250/300/350/390/430/480 RR 2T/4T 20-24 1011-4785 250/400/450/525 RR 2T/4T 05-12 1011-33181 Xtrainer 250/300 23-25 1011-4785 300/450RX 24-25 1011-4785 350/400/450/525 RR 4T 13-23 1011-33191 BMW F 650 GS Twin 09-12 1011-2028 F 800 GS 07-14 1011-2028 BULTACO Alpina 74-75 1011-2497 Pursang 125/175/200 thru 77 1011-2495 CAN-AM All models 73-77 1011-2498 CZ All models 1011-2499 GASGAS EC/MC/FSE (all) 99-10 NU-4112ST1 MC 85 21-25 1011-4111 MC 125 24-25 1011-4729 FITS MODEL PART # GASGAS (CONT) EC 200/250/300 07-15 1011-33201 EC 250/300 E4 18-20 1011-4312 EC 250/300 E4 21-23 1011-3706 EC 250 24-25 1011-4729 EC 250F/350F 21-23 1011-3706 EC 250F 24-25 1011-4729 EC 250/300 GP 18-20 1011-4312 EX 250F/350F/450F 21-23 1011-3706 EX 250/F 24-25 1011-4729 MC 250 24-25 1011-4729 MC 250F 21-23 1011-3706 MC 250F 24-25 1011-4729 XC 250/300 18-20 1011-4312 XC 250F/350F/450F 21-23 1011-3706 EC 300 24-25 1011-4729 EX 300 24-25 1011-4729 EC 350F 24-25 1011-4729 MC 350F 24-25 1011-4729 STANDARD AND FACTORY PRE-OILED FILTERS (CONT) 1 Uni Ultra-Seal filter. 1011-2500 1011-2507 1011-3281 1011-3317 1011-3706 1011-3957 1011-0764 NU-4112ST NU-3238ST NU-3250ST
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