VOE 6644144 – Back-up ring

The VOE 6644144 Back-up ring is a Volvo construction equipment spare part. A back-up ring is a rigid support ring installed adjacent to an O-ring to prevent extrusion under high hydraulic pressure, extending seal life.

This part is categorized under Working Hydraulics, Serve Hydraulics and Load Carrier applications. It is commonly installed on Volvo Articulated Haulers to ensure reliable system performance and operational safety.

VOE 6644144 replaces previous part number VOE6212962. If your machine was originally equipped with VOE6212962, this is the updated replacement part.