O-RING (Doosan DWA138739)

DWA138739: A damaged retaining ring can lead to component separation under load. During inspection, a retaining ring may show signs of deformation or cracking. Keeping a retaining ring in sound condition helps maintain secure assembly of connected parts. This aftermarket replacement part references the Doosan catalog and carries the cross-reference number DWA138739. The part type functions as a mechanical fastener that holds components in a fixed position. A common failure consequence is the loosening of assembled parts, which can cause operational noise or misalignment. Verify the serial number or application, then call (562) 693-7748.

Part number variants: DWA138739, dwa138739