Piston Pin Ring – Mopar (68133309aa)

Piston Pin Ring is a reciprocating component that seals the combustion chamber. Clearance and surface finish decide whether it seals correctly, so the bore has to be measured before a replacement is chosen.

Replace the Piston Pin Ring when a leak-down test shows air escaping past the rings, when the skirt is scuffed, or when ring lands are cracked. Check the ring end gap in the bore it will run in.

This Piston Pin Ring is listed as part 68133309aa (Pistons, Rings & Cylinders). Where a number has been superseded, the current reference is the one that ships, so check any supersession note before ordering.

The stock here is genuine MOPAR, and this Piston Pin Ring keeps the original engineering number, which matters once a number has been superseded more than once.