465GC3150
Engine Rocker Arm Shaft
Mack

The rocker arm shaft is a key component in the valve train assembly, responsible for supporting the rocker arms that actuate the engine valves. Its precise alignment and robust construction are critical for accurate valve operation, which directly influences engine power, efficiency, and emissions. This shaft must withstand high stresses and thermal cycles, making durability a top priority. Proper functioning of the rocker arm shaft ensures smooth valve movement, reducing noise and preventing premature wear of related components. Reliable operation of this part is essential for maintaining engine performance over the long haul. Source One Parts Center offers quality shafts designed to meet OEM standards, providing dependable performance for demanding heavy-duty applications.