Description
Overview:
This Rim Sprocket 7T is a genuine Stihl OEM drive rim designed for high‐performance chainsaws, including the Stihl MS461 and MS500i. Made from hardened steel, it sits on the clutch drum and transfers engine power to the chain, keeping chain movement smooth, accurate, and efficient. The 7‐tooth profile is matched to a 3/8 in (9.53 mm) chain pitch, helping maintain correct chain speed and alignment under load. As a direct replacement for worn rims, it restores reliable cutting performance and reduces stress on the bar and chain. Built for heavy‐duty work, it withstands repeated use in forestry, arborist, and construction environments. Being a Genuine Part, it fits precisely and supports the long‐term integrity of your saw's drive system.
Key Features:
- Genuine Stihl OEM part for assured fit and reliability (MPN: 1128 007 1017)
- 7‐tooth, 3/8 in (9.53 mm) pitch rim for smooth, efficient chain drive
- Hardened steel construction for durability and wear resistance
- Helps maintain accurate chain tracking and reduces vibration
- Direct replacement; straightforward to fit during routine servicing
- Compatible with Stihl MS461 and MS500i professional saws
- Supports heavy‐duty cutting with consistent power transfer
- Cost‐effective maintenance: replace the rim instead of the full drum
- Helps prevent premature bar and chain wear by keeping drive true
Typical Applications:
Used during scheduled maintenance or when symptoms of a worn drive rim appear, such as chain creep, poor tracking, or uneven wear. Suitable for forestry work, arborist felling and snedding, firewood processing, site clearance, and construction tasks like cutting formwork and timbers. Ideal for users who need reliable chain drive performance in demanding, day‐to‐day conditions.
Also known as:
Drive rim, rim drive, 7‐tooth rim, splined chain rim, clutch rim, clutch drum rim, chain drive rim.
Fits Models:
MS 461, MS 500i
Alternate Part Numbers:
1128-007-1017, 11280071017
