BOLD MAGENTA part numbers are new for 2025 PARTS-UNLIMITED.COM 2025 | OFFROAD FUEL/AIR SYSTEMS FUEL/AIR SYSTEMS 1526 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”. DESCRIPTION PART # YZF Big Airbox kit replacement filter 1011-3896 YAMAHA BIG AIRBOX KIT REPLACEMENT FILTER FOR YAMAHA WR250F 15-19,YZ250F 14-18,YZ250FX 15-19, WR450F 16-18,YZ450F 14-17,YZ450FX 17-18 • Air Filter for motorcycles equipped with Twin Air Big Airbox kits •Easy to install 1 Flame Retardant. FITS MODEL DESCRIPTION PART # APRILIA RXV/SXV 450/550 04-11 Backfire repl. filter 1011-2811 GASGAS MC 125/250, EC/EX 250/300 24-25 Backfire repl. filter 1011-4802 Pre-oiled repl. filter 1011-4803 HONDA CR125/250 02-07 Backfire repl. filter 150198 CRF250R 04-09 Backfire repl. filter 1011-2042 CRF250R 10-13 Backfire repl. filter for PowerFlow kit with inner ring 1011-1655 CRF250R 14-17 Backfire repl. filter 1011-2947 CRF250R 18-19 Backfire repl. filter 1011-3876 CRF250R 20 Backfire repl. filter 1011-4370 CRF250RX 19-21 Backfire repl. filter 1011-3876 CRF250X 04-17 Backfire repl. filter 1011-2042 Super XR250 97-04 PowerFlow kit 150601C Backfire repl. filter 1011-0649 XR250 Baja (all) PowerFlow kit 150601C Backfire repl. filter 1011-0649 XR250R 87-06 PowerFlow kit 150601C Backfire repl. filter 1011-0649 XR400 96-06 PowerFlow kit 150601C Backfire repl. filter 1011-0649 CRF450R 03-08 Backfire repl. filter 1011-2042 CRF450R 09-12 Backfire repl. filter 1011-1655 CRF450R 13-16 Backfire repl. filter 1011-2947 CRF450R/RX 17-20 Backfire repl. filter 1011-3876 CRF450RL 21-24 Backfire repl. filter 1011-4301 CRF450RWE 19-20 Backfire repl. filter 1011-3876 CRF450X 05-17 Backfire repl. filter 1011-2042 CRF450X/L 19-24 Backfire repl. filter 1011-4301 XR600 87-02 PowerFlow kit 150601C Backfire repl. filter 1011-0649 XR650L 93-20 PowerFlow kit 150601C Backfire repl. filter 1011-0649 HUSQVARNA TC 65 17-23 Backfire repl. filter 1011-1920 TC/TE 125/250,TE/TX 250/300 24-25 Backfire repl. filter 1011-4802 Pre-oiled repl. filter 1011-4803 FC 250/350/450 16-18 Backfire repl. filter 1011-3342 FC 250/350/450 23-25 Backfire repl. filter 1011-46291 Pre-oiled repl. filter 1011-47961 FE 250 17-18 Backfire repl. filter 1011-3342 FE/FX 350 17-18 Backfire repl. filter 1011-3342 FX 350/450 23-24 Backfire repl. filter 1011-46291 FE/FX 450 17-18 Backfire repl. filter 1011-3342 POWERFLOW KITS 2-STROKE/4-STROKE KITS • 2-stroke kit includes a Twin Air filter and a rigid, lightweight, billet aluminum cage that replaces the flimsy plastic stock cage and provides a tight seal to the airbox •4-stroke kit replaces the air-restricting stock backfire screen with a special backfire-resistant layer of foam laminated to the inside • Includes a rigid, lightweight billet aluminum cage •Airbox kit includes a complete airbox that increases the volume of the intake, wash plug, cage and all mounting hardware 1011-1655 150601C
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