604KC38
Clutch Release Shaft
Mack

The Clutch Release Shaft is a precision-driven link in the clutch actuation path, translating pedal or hydraulic input into motion that disengages the clutch. Its tolerance-controlled ends and straight, rigid profile ensure a smooth release action and consistent pedal feel across varying operating conditions. Proper engagement reduces drivetrain shock and protects the pressure plate and throw-out bearing from uneven load paths. The shaft’s material selection and heat treatment balance strength with resilience to bending or fatigue under heavy-duty use, contributing to longer clutch life and more predictable engagement. Routine inspection helps detect wear before it affects performance, while correct alignment minimizes binding and chatter during shifting. This shaft is a fundamental component for reliable transmission operation. Source One Parts Center.