471629
Sealing Ring
Volvo

Sealing Ring provides a leak-free seal between mating surfaces in hydraulic and pneumatic assemblies on Volvo trucks. This ring is a critical barrier that maintains pressure, prevents fluid loss, and blocks contaminants from entering sensitive ports. Used across multiple subsystems, including engine, brake, and fuel circuits, the sealing ring must endure high temperatures, pressure pulses, and vibration. The part is manufactured to exact outer diameter, cross-section, and seating geometry to mate with compatible housings and flanges. When installed correctly with the proper seating torque and new seals, it helps maintain system efficiency and avoids downtime caused by leaks. Worn or damaged sealing rings can allow ingress of air or fluid, leading to reduced performance, malfunctions, or corrosion. For maintenance teams, replacing this ring during overhauls or line-boring is a prudent practice to preserve circuit integrity. Always verify compatibility with the exact OEM specification and accompanying fasteners. Source One Parts Center.