Seal Kit REXROTH A4VG56 R902079791 1-Set Genuine Parts Rexroth Sealkit Set

The Rexroth A4VG56 seal kit (material number R902079791) is a replacement seal set for the Bosch Rexroth A4VG size 56 hydraulic pump. This pump is a swashplate-type axial piston variable displacement pump designed for closed-circuit hydrostatic transmissions; it is widely used in concrete mixers, road rollers, pavers, wheel loaders, and other mobile machinery. The seal kit is used during servicing or overhauls to address oil seepage, shaft leakage, and performance degradation caused by worn or hardened seals. The set includes all necessary seals and O-rings, allowing for a comprehensive repair without the need to source individual components. It is available as a genuine Rexroth part, featuring precision sizing and durability equivalent to factory-original seals.

Specifications

Parameter Description

Product name Hydraulic pump seal kit

Brand Bosch Rexroth (genuine parts)

Material number R902079791

For model A4VG56 (size 56 cc/rev)

Pump type Axial piston variable pump, swashplate, closed circuit

Package contents Shaft seal (radial shaft seal), O-rings, seal rings, and other supporting seals

Seal material FKM (Viton) and/or NBR, per factory specifications

Working fluid Mineral hydraulic oil

Packaging 1 set per unit

Condition New

Key features

• Complete set for A4VG56 pump overhaul

• Addresses oil leakage at the shaft and pump connections

• Materials resistant to pressure, temperature, and hydraulic oil

• Precision-sized to factory specifications for a tight, accurate fit

• Extends pump service life and reduces the risk of downtime