Piston Compression Upper Ring – GM (97385928)

Piston Compression Upper Ring is one of the pistons that converts combustion pressure into motion. Ring land dimensions and skirt coating are specific to the build, not to the displacement.

Replace the Piston Compression Ring during any rebuild that has the head off, and always when the bore shows vertical scoring. Piston-to-wall clearance is set by measurement, not by the part number alone.

This Piston Compression Ring is listed under part number 97385928, filed under Pistons, Rings & Cylinders. If the original number is unreadable, send us the VIN and we will confirm the reference before dispatch.

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.

The listing covers the upper position of the assembly.