RING-BACK-UP (Hyster HY18981)

HY18981: A damaged retaining ring can allow a shaft or bore component to shift, leading to mechanical misalignment or disassembly. During inspection, a back-up ring may show deformation or cracking from repeated load cycles. Keeping a retaining ring in sound condition helps maintain axial positioning of assembled parts. This aftermarket replacement part references Hyster catalog number HY18981. The ring type provides a plain mechanical function of securing components against axial movement. A concrete generic failure consequence is that a worn ring can cause unintended part separation under load. Verify the serial number or application, then call (562) 693-7748. The item ships at approximately 0.016 POUNDS.

Part number variants: HY18981, hy18981