High-Flow Cone Air Filter for ATV & Small Engines – Internal Ref 545120D | Bowei

The 545120D is a high-flow cone air filter designed for ATV, UTV, dirt bikes, go-karts, and small-engine performance intake systems.
We make this filter using multi-layer oiled cotton gauze, the same style of high-performance media used in premium intake filters. Compared with standard paper filters, this structure delivers stronger airflow, better filtration efficiency, and a longer usable lifespan.

The cotton gauze can be washed, re-oiled, and reused, making the 545120D a practical upgrade for riders and builders who want reliable intake performance in dusty, off-road environments.
Its black tapered design and reinforced mesh support smooth, unrestricted airflow into the engine, improving responsiveness and breathing efficiency.

With precise dimensions and a durable rubber sealing surface, the 545120D fits a wide range of custom intake setups for small gasoline engines and off-road vehicles.

Model / Internal Reference: 545120D
This number is based on industry and customer specifications and may not appear in public catalogs.