20478143
Engine Expansion Plug Insert
Mack

This engine expansion plug insert is designed to seal and reinforce engine block openings, preventing leaks and maintaining pressure integrity. Its precise fit ensures a tight seal in high-temperature and high-pressure environments typical of heavy-duty engines. Proper installation of this insert is critical for avoiding coolant or oil leaks that could lead to engine damage or reduced performance. It contributes to the overall reliability and longevity of the engine by maintaining proper sealing under operational stresses. Source One Parts Center offers this component as part of their selection of engine repair parts, supporting efficient maintenance and engine health.