The MS381 chainsaw anti vibration rubber kit, four pieces. Three ring cylinder rubber dampers, each bore and hole size matched to its own seat, the side ring groove splitting the solid rubber into two spring sections so it deforms evenly under squeeze; and a fourth with a metal two hole bracket, the metal seat carrying the bolt force and the rubber taking the shake, fitted at the point with the biggest load. Between the engine and the handle frame, squeezed flat and springing back, the shake is eaten at the rubber layer, only the remainder reaches the hand. Cracked, squashed and not springing back, hard and sticky, metal seat cracked or its hole worn round, swap the whole set, the four age in the same batch, no mixing new and old. On fit, lay the old pieces out and match them, on the bracket piece line the holes on the bolts before pressing the rubber home, idle the saw and feel the handle, the shake less than before means it is seated. Saw families mostly fit, but fit is not guaranteed for every one, so comparing against the old pieces is the safe way.

 FAQ 

Q1: What is this kit?

A four piece anti vibration rubber mount kit for chainsaws, three ring cylinder dampers for three engine mounting points and one damper with a metal two hole bracket for the highest load point, isolating the engine shake before it reaches the handle.

Q2: Which saws does it fit?

The MS380, MS381 and MS382 chainsaw family, with the older 038 marks in the same line. Fit is not guaranteed for every saw, so lay the four pieces against your old set and check each one to its own seat before ordering.

Q3: Can I replace just one worn damper?

You can, but the four age in the same batch, and when one is rotten the others are tired too. Swapping the whole set keeps the isolation even, and fitting new and old together leaves the weak one holding the shake.