This genuine Stihl AV spring is designed for selected petrol chainsaws, including the MS 311 and MS 391. Made from high-tensile spring steel, this compact coil spring is an integral part of the saw's anti-vibration system, positioned between the engine unit and handle assembly. It helps absorb and isolate engine vibration, improving operator comfort while reducing the transfer of shock to the handle. By maintaining effective vibration control, it supports smoother handling and consistent cutting performance during extended use. Built to Stihl OEM specifications, this replacement spring can help restore the original anti-vibration performance when the existing spring is worn, stretched, or broken.
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