The Twin Air Fire-Resistant Pre-Oiled Air Filter, manufacturer part number 151125FRX, is a replacement performance air filter designed for select Kawasaki KX450F and KX450X motorcycles. This filter is pre-oiled with Twin Air biodegradable foam filter oil, developed exclusively for Twin Air by Chevron Texaco. Its dual-layer foam construction helps provide dependable engine protection while supporting consistent airflow in demanding off-road environments.
The coarse, open-pore outer foam captures airborne dirt, grime, and sand before they can reach the inner filter layer. Fine, open-pore inner foam traps smaller particles while maintaining efficient air passage for responsive engine performance. The filter’s adhesive is engineered to withstand repeated cleaning, making it a practical choice for riders who regularly service their air filtration system. A compact filter profile increases available air space and circulation around the filter compared with the stock design.
Independent testing by a leading German engineering laboratory found Twin Air filter oil to deliver exceptional filtration performance. The fire-resistant construction adds an extra layer of protection for applications where heat and flame resistance are important. The Twin Air 151125FRX replacement filter is designed to fit the 2019, 2020, 2021, 2022, and 2023 Kawasaki KX450F, as well as the 2021 and 2022 Kawasaki KX450X. Verify the motorcycle model and year before installation.
Features:
- Brand: Twin Air
- Manufacturer Part Number: 151125FRX
- Vendor Part Number: 715-1125FRX
- Filter Type: Fire-resistant, pre-oiled replacement air filter
- Construction: Dual-layer coarse and fine open-pore foam
- Filtration: Captures dirt, grime, sand, and fine airborne particles
- Airflow: Supports efficient air passage and circulation around the filter
- Filter Oil: Pre-oiled with Twin Air biodegradable foam filter oil
- Durability: Adhesive withstands repeated cleaning
- Fitment: 2019-2023 Kawasaki KX450F and 2021-2022 Kawasaki KX450X
Fitment:
2019 Kawasaki KX450F
2020 Kawasaki KX450F
2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Kawasaki KX450F
2022 Kawasaki KX450X
2023 Kawasaki KX450F
2023 Kawasaki KX450X