This door lock set fits Mack cab doors and includes the key cylinder, locking components, and linkage needed to secure and operate the door as a matched assembly. It is sold as one complete set, built as a replacement for the original hardware. The parts work together to keep the door latched and allow locking and unlocking from the cylinder.Interchanges:Mack 34RC156FLK-4721FeaturesProduct group: CabSell pack: 1 EACHTech SpecsSell Pack: 1 EACHUsed in this Truck Cab modelMack Door & Window Parts & Diagrams