The FunnelWeb Proline Air Filter, manufacturer part number FWF PRO 7981 and vendor part number 90-07981, is a high-performance foam air filter designed for select Yamaha off-road motorcycles. Its unique pyramid-profiled foam increases the filter’s effective surface area, helping capture more dirt on the outer surface before harmful dust can penetrate the filter media. This design supports dependable engine protection in dusty, demanding riding environments.
FunnelWeb uses advanced open-cell polyurethane foam profiling to improve dirt-holding capacity while maintaining consistent airflow. The Proline Air Filter is designed as a direct-fit replacement for the original air filter application on compatible Yamaha models, making installation straightforward and helping preserve proper intake performance. The filter can be serviced with any quality foam air filter oil.
Fitment includes the 2023 Yamaha YZ450F; 2024 Yamaha YZ250F, YZ450F, YZ250FX, YZ450FX, and WR450F; and 2025 Yamaha YZ250F, YZ250FX, WR450F, and YZ450F. Verify the motorcycle year and model before installation to ensure proper fitment. The FunnelWeb brand and FWF PRO 7981 part number provide reliable identification when replacing or servicing the air filter.
Features:
- Pyramid-Profiled Foam: Unique foam profiling increases surface area for improved dirt-holding capacity.
- Consistent Airflow: Designed to maintain dependable airflow while capturing harmful dust and dirt.
- Advanced Polyurethane Foam: Open-cell polyurethane construction helps trap contaminants on the filter’s outer surface.
- Serviceable Design: Compatible with any foam air filter oil for cleaning and maintenance.
- Yamaha Fitment: Fits select 2023–2025 Yamaha YZ and WR off-road motorcycle models.
Fitment:
2023 Yamaha YZ450F
2024 Yamaha WR450F
2024 Yamaha YZ250F
2024 Yamaha YZ250FX
2024 Yamaha YZ450F
2024 Yamaha YZ450FX
2025 Yamaha WR450F
2025 Yamaha YZ250F
2025 Yamaha YZ250FX
2025 Yamaha YZ450F
2025 Yamaha YZ450FX