52KH155P259
Differential Pinion Bearing Spacer
Mack

This spacer plays a crucial role in the assembly of the differential pinion bearing, ensuring accurate gear alignment and preload. Its precise dimensions help maintain the correct positioning of the pinion gear, which is vital for smooth gear engagement and long-term durability. Proper use of this spacer minimizes uneven wear on bearings and gears, reducing the risk of drivetrain failure. It is especially important in heavy-duty applications where high torque and load conditions are prevalent. Source One Parts Center supplies these spacers to guarantee high standards of quality and performance, supporting the longevity of your truck's axle assembly.