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 FS 75, FS 80, HL 75, HT 70, HT 75, HS 75, HS80, HS85 (34mm)

$22.36

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Piston Kit fit STIHL FS75, FS80, HL75, HT70, HT75, HS75, HS80, HS85 (34mm) 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 the following STIHLSpare parts for STIHL machines models, 34mm in diameter, and replaces OEM Part #4137 030 2010:

FS 75
FS 80 (4137 Series)
FS 80 R (4137 Series)

HL 75
HL 75 K

HT 70
HT 75

HS 75
HS 80
HS 85

Note: FS 80, FS 80 R models listed above belong to STIHL 4137 Series Brush-cutters. This piston kit does not fit STIHL FS 80 Brush-cutters of 4112 Series with bore size 32mm.

This high-performance Piston Kit comes directly from a top-quality ISO-certified Manufacturer.
This top-quality Piston Kit is covered by a 2-year warranty.
No Exporters - No Intermediaries You buy at a competitive price, because we buy directly from the source!

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Specifications

Specifications
Country of Origin	Taiwan
Product Code	1003055
Compatible Brand	STIHL
Compatible Models	STIHL HS75, HT75, HT70, FS75, HS80, HS85, HL75, FS80 (4137)
OEM Part #	41370302010

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