TB110 Air Filter Cover Air Filter Kit for Troy-Bilt TB110 TB115 TB200 TB230 TB330 TB370 Walk Behind Lawn Mower

What It Is

This is a replacement air filter cover and filter kit designed for Troy-Bilt TB110, TB115, TB200, TB230, TB330, and TB370 walk-behind lawn mowers. It provides the critical seal and filtration needed to keep dirt and debris out of the engine’s carburetor and cylinder.

Fitment & Compatibility

Before buying, verify your mower’s model number (found on a sticker under the fuel cap or near the engine shroud). This kit fits Troy-Bilt models with the “TB” prefix listed above—it does not fit Craftsman, Cub Cadet, or other brand mowers unless they share the same 4-cycle engine platform (often Briggs & Stratton 450/500 series). The cover includes the foam pre-filter and paper filter element; measure your old cover’s overall width (approx. 4.5 inches) and the mounting tab spacing to confirm. This is an OEM-quality aftermarket part, not genuine Troy-Bilt, but uses the same mounting screw pattern.

Key Things to Know

• Installation is simple – Remove one screw, swap the old cover and filter, reinstall the screw. No tools beyond a screwdriver needed.
• Use both filters – The foam pre-filter traps larger debris; the paper element catches fine dust. Running without either reduces engine life.
• Check the gasket – The kit includes a new foam gasket on the cover’s back. If your mower’s air box housing is cracked or warped, the seal will still leak air.
• Common gotcha – The screw is small and easy to drop in the grass. Use a magnetic screwdriver or work over a rag.

Should You Buy It

If your Troy-Bilt TB-series mower is due for an air filter replacement and you want a complete drop-in kit (cover plus both filters) at a reasonable price, this is a solid choice. It’s best for DIY owners who want to restore proper airflow and protect the engine without hunting for separate parts. Avoid if your air box housing is damaged or you need a genuine Troy-Bilt part for warranty purposes.