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

1st groove: Compression Ring
2nd groove: Compression Ring
3rd groove: Slotted Oil Control Ring

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.

$44.05

In stock

Piston Ring Set for KOHLER K141, KV141, K160, K161 (2.895") Oversize [#231426] 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, which fits the following KOHLERSpare Parts for KOHLER engines models (6¼ HP - 6.6 HP), and replaces OEM Part Numbers #231426-S and #230469:

This Piston Ring Set has diameter 2 7/8" + .020" (73,53 mm) and consists of the following piston rings:

Our Piston Rings are branded and come directly from the top-quality and worldwide-known OEM Manufacturer CABER.
CABER Piston Rings are made from I-Cast Iron with high bending strength according to ISO STD 6621-3:1990 and DIN 70909.
Protect your valuable machine. Use only Branded & High-Quality Parts. Enjoy thousands hours of safe and trouble-free operation!