44GB54AM
Engine Rocker Arm
Mack

The engine rocker arm is a fundamental component of the valve train, translating camshaft motion into valve movement to control intake and exhaust cycles. Its precise operation is essential for maintaining engine efficiency, power, and emissions compliance. Constructed from high-strength materials, it withstands the stresses of high RPM and thermal cycles. Proper lubrication and timely inspection are vital to prevent wear and ensure smooth operation. A malfunctioning rocker arm can lead to misfires, reduced power, or engine damage. This part is critical for maintaining optimal engine performance in heavy-duty applications. Source One Parts Center offers this durable rocker arm to support your engine’s reliability and longevity.