Rexroth R902438137 PISTON PAD

Key Specifications

• Manufacturer: Bosch Rexroth
• Part Number (MNR): R902438137
• Model Designation: PISTON PAD A4 180/30
• Component Type: Axial Piston with Slipper Shoe Assembly
• Primary Pump Series Compatibility: Bosch Rexroth Axial Piston Units (including A4VS180 Series 30, A4VSO180, A11VO190, and A11VLO190 series)
• Frame Size Compatibility: Size 180 (A4) / Size 190 (A11)

Product Overview

The Bosch Rexroth R902438137 Piston Pad Assembly is a genuine OEM high-pressure internal component engineered for large-capacity variable displacement axial piston units. This package contains the precision-machined reciprocating pistons and attached sliding slipper shoes. It serves as the primary pressure containment core, drawing fluid into the cylinder barrel and sliding smoothly across the swashplate face to translate mechanical torque into high-capacity hydrostatic pressure.