This Annular Buffer/Rubber Mount is a Genuine Stihl part for the vibration‐damping system on Stihl chainsaws such as the 028 and MS 240. Made from durable black rubber with a bonded metal sleeve, it sits between components to isolate engine vibration from the handles, improving control and comfort during use. It helps keep the saw stable, protects adjoining parts from shock, and maintains smooth operation over long working periods. As a direct replacement with Manufacturer Part Number (MPN) 1121 790 9909, it restores the performance of the original anti‐vibration system on compatible Stihl models. Ideal for both trade and home users, it supports precise cutting by reducing hand‐arm vibration and keeping the machine balanced under load.

Key Features:
– Genuine Stihl part for assured compatibility and fit
– MPN: 1121 790 9909
– High-quality rubber with metal insert for strength and stability
– Reduces vibration transfer to the handles for better control
– Helps cut operator fatigue on longer jobs
– Direct replacement on listed models; no modifications required
– Consistent dimensions for reliable seating and alignment
– Suitable for the harsh conditions typical of chainsaw use

Typical Applications:
Routine replacement of a worn or perished buffer in the chainsaw’s vibration isolation system. Useful after heavy use, exposure to oils, or when excessive handle buzz, looseness, or reduced cutting accuracy is noticed. Common in felling, logging, firewood processing, pruning, and site clearance where sustained operation benefits from reduced vibration.

Also known as:
AV mount, AV buffer, isolation mount, rubber bush, shock mount, handle mount, engine isolation bush. These terms refer to rubber components that separate the engine unit from the handle frame to limit vibration and shock transfer.

Fits Models:
024, 026, 028, 028 AV, 038, MS 240, MS 260, MS 260 C, MS 380, MS 381, MS 382

Alternate Part Numbers:
1121-790-9909, 11217909909

Product Specifications