236981N
Plunger
Bendix

Actuator plunger component used within valve and actuation assemblies to translate axial movement into hydraulic or pneumatic action. Classified under category 42848 with VMRS 013-010-228, it sits at the heart of precise valve operation by interfacing with springs, seats, and seals to modulate opening and closing under load. In practice, a well machined plunger contributes to predictable system behavior, minimizing hysteresis and ensuring repeatable actuation across temperature variations and wear conditions. In repair or rebuild work, this part supports restoration of exact travel and alignment within the valve stack. Installation requires cleanliness and correct seating depth to prevent leakage and ensure proper seating of adjacent seals. While exact dimensions are not provided here, compatibility with mating components in the valve assembly is essential for achieving consistent performance and long service life in braking and auxiliary systems.