691GC319A
Engine Oil Pressure Relief Valve
Mack

This critical valve regulates the oil pressure within the engine, ensuring optimal lubrication and preventing excessive pressure that could damage internal components. It maintains a consistent oil flow, which is vital for engine longevity and performance. Proper functioning of this relief valve helps avoid oil leaks and pressure-related failures, reducing maintenance costs and downtime. It is designed to withstand high temperatures and pressures, providing reliable operation over the engine’s lifespan. Regular inspection and replacement are recommended as part of routine engine maintenance. Source One Parts Center offers this component as a dependable solution to support the health and efficiency of your Mack engine.