CAT 9X-7450 U-Cup Rod Seal is Caterpillar's U-shaped rod seal used in hydraulic cylinder assemblies to seal the piston rod and prevent fluid leakage. It is listed as compatible with Caterpillar machines including 69D, 768C, 769C, 769D, 771C, 771D, and 772B. The U-shaped cross-section provides a sealing lip that contacts the rod surface to maintain seal integrity during cylinder operation.
