Oldsmobile piston ring set 1941-48 Sealed Power #: 577X .040, 3 1/2" bore NOS!!
Incredibly rare. See photos for details and feel free to ask any questions you may have as I am here to help!
This is an Oldsmobile piston ring set manufactured by Sealed Power, part number 577X .040. It is designed for 1941-1948 Oldsmobile models with a 3 1/2" bore. This set includes piston rings and is new old stock (NOS), meaning it is a vintage item that has never been used. Made in the United States.