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 STIHL MS231, MS 231C Chainsaws (41.5mm) [#11430302005]

$25.83

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Piston Kit for STIHL MS231, MS 231C (41.5mm) Chainsaws [#11430302005] and related spare parts.

Details

This listing is about a brand new top-quality after-market Piston KitHow to find the size of a piston ring in its original package for the following STIHLSpare parts for STIHL machines models, 41.5mm in diameter, and replaces OEM Part #1143 030 2005. Note: Before buying this item, ensure the bore size of your machine, as there is a newer edition of MS231 model with bore size 42.5mm which takes the piston #1143 030 2013.

MS 231
MS 231-Z
MS 231 C-BE
MS 231 C-BE Z

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Specifications

Specifications
Country of Origin	Taiwan
Product Code	1001241
Compatible Brand	STIHL
Compatible Models	STIHL MS231C, MS231
OEM Part #	11430302005

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