Parts & Accessories Spare parts For sale: Original American door lock cylinder from American O.E.M. Parts Company. Part Number: 1-608168 Condition: New and unused. Comes with two original keys. Made in U.S.A. Application: Suitable for a number of older American Chevrolet, GMC, and Cadillac vehicles, used in some models from 1982 to 1994. For sale to the highest bidder.