Caterpillar 162-6327 SBS80 Hydraulic Pump Assembly

The SBS80 is a variable displacement axial piston hydraulic pump designed for open hydraulic circuits in mid-class Caterpillar excavators. It serves as the main hydraulic pump providing primary hydraulic flow for boom, arm, bucket, and travel functions. Technical specifications include a maximum flow rate of 155 L/min and maximum operating pressure of 35 MPa. The pump features a direct bolt-on mounting flange, splined drive shaft, and integrated displacement control mechanism for responsive hydraulic system operation. Weight is approximately 76 kg with packaging dimensions of 60 x 50 x 60 cm. This assembly replaces multiple Caterpillar OEM part numbers and is compatible with excavators equipped with the Caterpillar 3064, 3054T, and 3054 diesel engines. The pump is manufactured by Kawasaki for Caterpillar under the SBS series designation.