Description
Overview:
The Annular Buffer/Rubber Mount is a genuine Stihl anti‐vibration component for petrol chainsaws, made from durable rubber to isolate engine vibration from the handle system. Designed specifically for Stihl MS 311 and MS 391 models, it helps keep the machine stable in use, improves operator comfort, and protects surrounding parts from vibration‐related wear. As a direct replacement for the original buffer, it restores the performance of the AV system when the old mount becomes perished, cracked, or loose. Genuine Stihl part number 1140 791 2801 (also referenced as 11407912801), this mount provides a precise fit and reliable service life when used on the listed models. Suitable for regular maintenance or a like‐for‐like replacement during a refurb.
Key Features:
- Genuine Stihl part for assured fit and performance on specified models
- Direct‐fit replacement; no modifications required on MS 311 and MS 391
- High‐quality rubber construction for effective vibration isolation
- Helps reduce fatigue and improves control during extended cutting
- Limits vibration‐induced wear to chassis, fasteners, and adjacent components
- Stable, snug seating to maintain consistent handling characteristics
- Robust design intended for long service life under demanding use
- Supports overall cutting accuracy by keeping the saw steady in operation
Typical Applications:
Used during routine servicing or repair when the original anti‐vibration mount shows signs of ageing, such as cracking, flattening, or excessive movement. Suitable for forestry, landscaping, and general grounds maintenance where chainsaws are operated for prolonged periods. Ideal for restoring comfort and stability on Stihl MS 311 and MS 391 saws after heavy work, frequent transport, or exposure to tough site conditions.
Also known as:
Annular buffer, AV mount, anti‐vibration mount, rubber isolator, vibration damper, shock absorber, rubber bush, anti‐vibration buffer. These terms refer to the same function: reducing transmission of engine vibration to the handles and body of the saw for smoother, more controlled operation and reduced wear.
Fits Models:
MS 311, MS 391, MS311, MS391
Alternate Part Numbers:
1140-791-2801, 11407912801
