PACKING - U CUP (Hyster HY193553)

A damaged U-cup packing can allow fluid leakage past the seal, reducing system pressure and causing erratic movement. During routine service, a worn U-cup often shows visible cracking or flattening of the sealing lip. The U-cup packing functions as a dynamic seal that prevents fluid bypass along a reciprocating rod or piston. Its lip geometry relies on system pressure to expand and maintain contact with the mating surface. This aftermarket replacement part references the Hyster catalog number HY193553. The item ships at approximately 0.013 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: HY193553, hy193553