Piston Assemblys

Piston assemblies here cover replacement cylinder and piston kits for chainsaws, demolition saws and concrete cut off saws from brands including Husqvarna, Stihl and Honda. Kits range from small-bore engines like the Honda GX25 up to larger concrete saw engines such as the Stihl TS700 and TS800, and Husqvarna's K960, K970 and K1250 demolition saws.

Some listings are a full cylinder and piston assembly, while others are a piston and ring kit only, so check whether your engine needs the cylinder replaced as well or just the piston and rings. Bore size is listed on many kits (such as 52mm, 54mm or 56mm) and must match your engine's original bore to fit correctly.

  • Full cylinder and piston assemblies
  • Piston and ring kits
  • Kits for chainsaws, demolition saws and concrete cut off saws

Frequently asked questions

How do I choose between a piston kit and a full cylinder assembly?

If your existing cylinder is worn, scored or damaged, choose a full cylinder and piston assembly. If the cylinder is still sound, a piston and ring kit on its own may be enough.

Why does bore size matter when choosing a piston?

The bore size needs to match your engine's original specification, since a piston that's the wrong diameter won't seal properly in the cylinder.

Will a piston assembly fit any saw model?

No, piston and cylinder assemblies are made for specific engine models, so check the listed model and part number against your saw before ordering.