Piston Rings – Ford (ft4z6148b)

Piston Rings 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 Rings 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.

Reference number for the Piston Rings: ft4z6148b. It is filed under Pistons, Rings & Cylinders, and it is the number that has to match the part coming off the vehicle.

Genuine FORD part for the Piston Rings. Where the manufacturer has superseded a number, the current reference is the one that ships.