142GC242M
Engine Rocker Arm
Mack

The engine rocker arm plays a pivotal role in translating camshaft motion into valve operation, directly influencing engine efficiency and power output. Crafted for precision and durability, this component withstands the rigors of high-performance engine cycles, ensuring smooth valve actuation. Proper functioning of the rocker arm is vital for maintaining optimal timing and combustion, which impacts fuel economy and emissions. Its robust construction resists fatigue and wear, extending service life even under demanding conditions. Installing this part correctly is crucial for engine longevity and performance. Source One Parts Center supplies this essential component, providing quality assurance for your engine rebuild or repair project.