Caterpillar 6V-1904 Engine O-Ring Seal is a genuine Cat replacement part designed for Caterpillar diesel engines, including the 3508 and 3612 families. The seal is an O-ring with an inside diameter of 142.47 mm, specified for applications where the 6V-1904 size is required. Cat states these O-rings are manufactured from materials suited to the engine fluids, temperatures, and pressures found in Cat equipment, supporting reliable sealing in demanding service. Use this part to restore proper sealing in engine assemblies where the 6V-1904 O-ring is specified, helping contain engine fluids under typical Caterpillar engine service.
