7843-12035
Motor Mount Kit
Mack

The motor mount kit comprises the components needed to secure the engine to the vehicle frame, including bushings, brackets, and fasteners designed to absorb engine vibrations and maintain proper alignment. A well‑matched kit minimizes perceived cabin vibration, reduces wear on ancillary components, and helps maintain drivetrain alignment during acceleration, braking, and cornering. Proper installation requires attention to torque specs, correct orientation of mounts, and verification that the engine sits level to avoid premature wear on mounts and related hardware. The kit should be sourced to match the engine model, transmission arrangement, and chassis configuration to ensure optimal performance and service life. In fleet maintenance, replacing worn mounts at recommended intervals prevents harsh starts and gear lash that could degrade overall vehicle efficiency. Source One Parts Center.