Based on this product's specifications, here are some alternatives and similar models
Chainsaw piston for petrol chainsaw model TOR2525 (MPN YTOR2508) — spare part
Summary description:
Spare piston compatible with petrol chainsaw model TOR2525, supplied under manufacturer part number YTOR2508. This replacement piston is a core engine component designed for maintenance and repair of the chainsaw’s combustion chamber and piston assembly. Intended for use during engine rebuilds or when restoring compression and performance in the specified TOR2525 chainsaw.