246045N
Roller Plunger, Brake Valve
Bendix

Within brake valve assemblies, the roller plunger acts as a precision contact element that governs valve seating and release, translating linear motion into controlled valve operation. Its function centers on reducing friction between moving parts while delivering consistent engagement force, which directly affects braking response, shutoff reliability, and system hysteresis. The VMRS code 013-001-032 anchors this component in the valve actuation subsystem, ensuring compatibility with other plunger, roller, and seating components across Bendix valve products. Classified under category 41351, it belongs to the lineup of mechanical interfaces that withstand cycling, vibration, and exposure to brake fluids and lubricants. In practical terms, the roller plunger contributes to smoother valve transitions, reduced wear on seats, and longer service intervals for valve assemblies. Fleet maintenance programs benefit from predictable replacement schedules, easier diagnostics during inspections, and improved reliability of brake valve performance under demanding road and weather conditions. This part is integral to maintaining accurate brake modulation and consistent stopping power across a spectrum of heavy-duty applications.