The RFX Pre-Oiled Air Filter, part number FXAF 40005 55PO, is manufactured by Multi Air for dependable air filtration and precise fitment on select Yamaha off-road motorcycles. This replacement filter is designed for riders of all experience levels and helps provide a clean, consistent airflow for reliable engine performance in demanding riding conditions.
Built with breathable twin-layer foam, the RFX filter captures dirt and debris while supporting efficient airflow. Multi Air uses nonflammable foam on its four-stroke applications, adding an extra level of suitability for high-performance motocross and off-road use. The pre-oiled construction helps simplify installation and maintenance, allowing the filter to be fitted with minimal preparation.
Fitment includes the 2018 Yamaha YZ450F; 2019 Yamaha YZ250F and YZ450F; 2020 Yamaha YZ250F, YZ450F, and WR250F; 2021 Yamaha YZ250F, YZ450F, and WR250F; and 2022 Yamaha YZ250F. Confirm the motorcycle year and model before ordering to ensure proper fitment. With more than 30 years of experience, Multi Air provides the manufacturing expertise behind this RFX replacement air filter.
Features:
- Brand: RFX
- Manufacturer: Multi Air
- Part Number: FXAF 40005 55PO
- Product Type: Pre-oiled replacement air filter
- Construction: Breathable twin-layer foam
- Material: Nonflammable foam for four-stroke applications
- Fitment: 2018 Yamaha YZ450F; 2019 Yamaha YZ250F and YZ450F; 2020 Yamaha YZ250F, YZ450F, and WR250F; 2021 Yamaha YZ250F, YZ450F, and WR250F; 2022 Yamaha YZ250F
Fitment:
2018 Yamaha YZ450F
2019 Yamaha YZ250F
2019 Yamaha YZ450F
2020 Yamaha WR250F
2020 Yamaha YZ250F
2020 Yamaha YZ450F
2021 Yamaha WR250F
2021 Yamaha YZ250F
2021 Yamaha YZ450F
2022 Yamaha WR250F
2022 Yamaha YZ250F
2022 Yamaha YZ450F
2023 Yamaha WR250F
2023 Yamaha YZ250F
2024 Yamaha WR250F
2025 Yamaha WR250F
2026 Yamaha WR250F