Description
No-Toil Standard Air Filter – Yamaha WR450F, YZ250F/FX & YZ450F/FX – 180-55
Protect your Yamaha’s engine from damaging dirt, dust and debris with the No-Toil 180-55 Standard Air Filter. Designed for select newer-generation Yamaha YZ and WR four-stroke motorcycles, this washable foam filter provides dependable filtration while maintaining the airflow needed for responsive engine performance.
The filter uses dual-stage foam with two different pore sizes. The coarse outer layer captures larger dirt, sand and debris, while the finer inner layer helps trap smaller dust particles before they can enter the intake system.
No-Toil’s flame-laminated construction heat-seals the two foam stages together without placing a restrictive adhesive barrier between the filtration layers. Its fully open-cell foam structure provides a large dirt-trapping surface area while promoting strong, consistent airflow.
A wide, soft sealing ring helps prevent unfiltered air from bypassing the filter. Flexible seams resist cracking during installation and servicing, while heavy-duty bonded construction provides the durability required for motocross, cross-country and off-road riding.
Features:
- Dual-stage foam provides two levels of dirt and dust filtration
- Coarse outer layer captures larger dirt and debris
- Fine inner layer helps trap smaller airborne particles
- Flame-laminated foam layers promote unrestricted airflow
- Fully open-cell structure provides excellent airflow and engine protection
- Large filtration surface offers strong dirt-holding capacity
- Wide, soft sealing ring helps prevent dirt from bypassing the filter
- Flexible seams resist cracking during installation and servicing
- Heavy-duty bonded construction withstands repeated cleaning
- OEM-style shape and dimensions provide direct replacement fitment
- Light-colored foam makes complete filter-oil coverage easier to inspect
- Washable and reusable
- Designed for motocross, cross-country and off-road riding
- Made in the USA
Vehicle Fitment:
- 2024 Yamaha WR450F
- 2024 Yamaha YZ250F
- 2025–2026 Yamaha YZ250FX
- 2023–2026 Yamaha YZ450F
- 2024 Yamaha YZ450FX
Manufacturer Part Number: 180-55
Parts Unlimited Part Number: 1011-4730
Filter type: Standard, non-pre-oiled dual-stage foam air filter
Important: This standard foam filter is supplied dry and must be completely and evenly treated with an appropriate foam air-filter oil before installation. Never operate the motorcycle with a dry foam filter. Always confirm the motorcycle’s exact year, make and model before ordering.

