1078564
Steering Knuckle Cap
Mack

The steering knuckle cap provides a protective cover for the steering knuckle assembly, shielding critical bearing surfaces from dirt, moisture, and road debris. By preventing contamination in the knuckle area, it helps maintain grease retention and reduces wear on joint components, contributing to smoother steering response and longer service life. This cap is designed for a secure fit that withstands steering-induced dynamics and the environmental rigors associated with heavy-duty operation. When installed, it reduces the likelihood of pitting and corrosion on exposed knuckle hardware, aiding in consistent alignment and steering precision. Routine checks during vehicle maintenance should include inspection of the cap seal and surrounding area for signs of damage or leakage. Source One Parts Center offers this part as a practical accessory for Mack steering systems.