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.

$6.84

In stock

Piston Ring fit JONSERED RS51, RS52 Brush-cutters, 525 New, 535, 621, 2051, CS2150, CS2152 Chainsaws and related spare parts.

This listing is about a brand new after-market top-quality Piston RingTips for safely installing piston rings made by the well-known OEM firm CABER (Italy), and fits the following JONSEREDSpare parts for JONSERED machines models, and replaces OEM Part Numbers #503 28 90-11, #503 16 79-01 and #504 41 16-00:

RS 51 (1990-06)
RS 51 (1991-09)
RS 51 (1992-05)
RS 51 (1993-05)
RS 51 (1994-06)
RS 51 (1995-03)
RS 51 (1996-03)
RS 51 (1998-03)

RS 52 (1999-04)
RS 52 (2001-05)
RS 52 (2002-08)
RS 52 (2006-07)
RS 52 EPA (2001-05)
RS 52 EPA (2002-08)

Specifications
Country of Origin	Italy
Product Code	1008115
Compatible Brand	JONSERED
Compatible Models	JONSERED CS2150, 535, RS52 EPA, CS2152, RS52, CS2152 EPA, 525, 2051, RS51, CS2150 EPA, 621
OEM Part #	503289011, 503167901, 504411600

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