O-RING (Doosan DWMF520004)

A damaged retaining ring can allow assembled components to separate under load, leading to mechanical failure. During disassembly, a retaining ring may deform or break, requiring replacement to restore secure fastening. The part type functions as a removable fastener that seats in a groove to hold parts in place. This aftermarket replacement part references the OE maker Doosan and cross-references part number DWMF520004. A common failure consequence is that a worn or missing retaining ring permits axial movement, causing misalignment or noise. Keeping a retaining ring in sound condition helps maintain the intended assembly integrity. Verify the serial number or application, then call (562) 693-7748.

Part number variants: DWMF520004, dwmf520004