Caterpillar Inc. 132-0085 Hydraulic Cylinder Stem

Caterpillar 132-0085 hydraulic cylinder stem is an OEM replacement part, designed as the piston rod inside CAT hydraulic cylinders, and it is intended to be used when the 132-0085 stem is specified by Caterpillar for a given cylinder bore and stroke range. The part number 132-0085 identifies the stem within Caterpillar cylinder assemblies, ensuring direct compatibility with CAT equipment that requires this exact stem and simplifying procurement for maintenance or rebuild projects. As an original Caterpillar part, it is manufactured to Caterpillar's specifications for use in hydraulic cylinder systems, aligning with engineering tolerances, fitment interfaces, and recommended assembly practices to support reliable sealing, piston movement, and long service life. This stem transmits hydraulic force, translating fluid pressure into linear motion, and its correct specification is essential for maintaining cylinder efficiency, control, and safety in CAT machines. Used in repairs or rebuilds where 132-0085 is required, the stem works in concert with the cylinder bore, seals, end caps, and other CAT components to restore original cylinder performance.