52KH155P300
Differential Pinion Bearing Spacer
Mack

This spacer is a vital component within the differential assembly, ensuring correct positioning of the pinion bearing. Proper spacing is crucial for maintaining optimal gear alignment, which directly influences the longevity and smooth operation of the driveline. By providing precise clearance, it helps prevent uneven wear and potential gear failure, thereby enhancing overall drivetrain reliability. Installation of this spacer is essential during differential repairs or rebuilds to restore proper gear mesh and reduce noise. Source One Parts Center offers this part as a dependable solution for maintaining the integrity of heavy-duty axles, supporting vehicle durability and performance under demanding conditions.