Description
Overview:
This Belt Tensioner Cover is a Genuine Stihl part for the TS 400 and TS 460 cut-off saws, supplied under MPN 4221 664 4200. It protects the belt drive and tensioning mechanism from dust, slurry, and impact during cutting work. Made from a durable, high-impact polymer in Stihl orange, it is shaped to enclose the moving belt area while allowing access to the tensioning adjuster. By keeping contaminants away from the drive components, it helps maintain consistent belt tension, reduces premature wear, and supports reliable cutting performance. Designed to match the original cover, it fits neatly to the saw's existing mounting points for straightforward replacement when the original cover is damaged or worn.
Key Features:
- Genuine Stihl OEM part (4221 664 4200) for correct fit and performance
- High-impact, abrasion‐resistant polymer construction for long service life
- Shields belt, pulley and tensioner from dust, grit and slurry to reduce wear
- Helps maintain stable belt tension by protecting the adjuster from contamination
- Accurate moulding aligns with factory fixings; quick to install with basic tools
- Corrosion‐proof and easy to clean after wet or abrasive cutting tasks
- Encloses moving parts to support safer operation on site
- Robust enough for daily use in construction, utilities and hire environments
Typical Applications:
Used on Stihl TS 400 and TS 460 disc cutters in construction, roadworks, utilities, and landscaping. Ideal for saws cutting concrete, brick, stone, or metal where airborne dust and slurry can damage the drive system. Suitable for trade users, DIY owners, and hire fleets to keep machines reliable between services.
Also known as:
Drive belt guard, belt drive cover, tensioner guard, belt housing, belt side cover, drive guard, belt protection cover.
Fits Models:
TS 400, TS 460
Alternate Part Numbers:
4221-664-4200, 42216644200

