Piston Compression Upper Ring – GM (97385926)

Piston Compression Upper Ring contains combustion in the cylinder bore and transfers force to the connecting rod. It is matched by bore diameter and ring groove width rather than by model year alone.

Replace the Piston Compression Ring when compression is low on one cylinder, when oil consumption climbs without an external leak, or when a teardown shows scoring in the bore. Measure the bore before ordering: standard size will not seal a cylinder that needs honing.

For this Piston Compression Ring the reference is 97385926, in our Pistons, Rings & Cylinders range. Compare it with the number on the part you are replacing rather than with a photograph.

This is genuine GM stock, supplied for the Piston Compression Ring with the manufacturer number intact so the reference on the box matches the catalogue.

This is the upper unit in the assembly; confirm the location on your vehicle before ordering.