A truck (10) is provided including an engine (12), a cabin, and a conditioned spaced (14) defined by a plurality of adjacent wall members including a front wall member (16). A transport refrigeration unit is configured to control a temperature within the conditioned space include an evaporator unit (20) and a condenser unit (22). The evaporator unit (20) is mounted within the conditioned space (14). The condenser unit (22) is operably coupled to the evaporator unit (20) and is mounted to an exterior surface (24) of the front wall member (16). The condenser unit (22) is configured to move slidably between an operating position and a clearance position.