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

The most common problem of a cylinder that needs replacement is in case there are scratches into the surface of the tube where the piston runs.

What other parts I may need to replace on my machine when replacing the piston?

To replace the piston you need to disassemble the engine, so you also need to replace the cylinder gasket, at least. Also, it is recommended to check the piston bearing.

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Piston Kit for DOLMAR 102, PS39, PS390, PS400, PS401, PS410, PS411 [#028132110]

$35.06

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Piston Kit for DOLMAR 102, PS39, PS390, PS400, PS401, PS410, PS411 Chainsaws [#028132110] and related spare parts.

Details

This listing is about a brand new after-market Piston KitHow to find the size of a piston ring in its original package for DOLMARSpare parts for DOLMAR machines models, 40mm in diameter, and replaces OEM Part #028 132 110:

PS-39
PS-390

PS-400
PS-401
PS-410
PS-411

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Specifications

Specifications
Country of Origin	Taiwan
Product Code	1000138
Compatible Brand	DOLMAR
Compatible Models	DOLMAR PS400, 102, PS410, PS411, PS39, PS390, PS401
OEM Part #	028132110

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