Rexroth R909921938 DRIVE SHAFT

Key Specifications

• Manufacturer: Bosch Rexroth
• Part Number (MNR): R909921938
• Model Code: DRIVE SHAFT W 35X2X16-0 21518
• Component Type: Hydraulic Pump Main Input Drive Shaft
• Compatible Pump Series: Bosch Rexroth / Brueninghaus Hydromatik A4VG71 Series
• Pump Frame Size / Displacement: 71 cc per revolution
• Spline Profile: 16-Tooth Spline (16T)
• Nominal Shaft Diameter: 35 mm
• Overall Length (L): 267.1 mm

Product Overview

The Bosch Rexroth R909921938 (DRIVE SHAFT W 35X2X16-0 21518) is a genuine OEM high-strength replacement main drive shaft engineered exclusively for A4VG71 series variable displacement axial piston pumps. This precision-ground input shaft transfers heavy mechanical torque from the prime mover directly into the pump's core internal cylinder block assembly. Manufactured to rigid European standards, replacing a twisted, scored, or fatigue-worn shaft with this authentic Bosch Rexroth drive shaft minimizes rotational driveline play, eliminates early front shaft-seal leakage, and preserves structural alignment under intense hydraulic pressures