446GC138B
Engine Rocker Arm Shaft O-Ring
Mack

This high-quality O-ring is designed to provide a reliable seal around the rocker arm shaft, preventing oil leaks and contamination within the engine's valve train. Its precise fit ensures consistent sealing performance, which is essential for maintaining proper lubrication and engine efficiency. The O-ring's material is resistant to high temperatures and engine fluids, making it suitable for demanding engine environments. Proper sealing with this component helps reduce oil consumption and prevents dirt ingress, ultimately extending engine life and enhancing performance. Regular replacement of worn or damaged O-rings is vital for maintaining engine integrity. Source One Parts Center offers this essential sealing component, supporting optimal engine operation and longevity.