How can I determine whether my piston is reusable so as to replace just the piston rings?

The most common problem of a piston that needs replacement is in case there are scratches on its body.

What other parts I may need to replace when replacing the piston rings?

To replace the piston rings you need to disassemble the engine, so you also need to replace the cylinder gasket.

$13.43

In stock

Piston Ring Set for OLEO-MAC 970, 971, GS720 - DYNAMAC DY70 Chainsaws [#097000055] and related spare parts.

This listing is about a brand new after-market top-quality Piston Ring SetTips for safely installing piston rings made by the well-known OEM firm CABER (Italy), and fits the following OLEO-MACSpare parts for OLEO-MAC machines models, and DYNAMAC DY70:

The set consists of two (2) piston rings and replaces OEM part #097000055.