391-3809: U-cup Seal

Description: A U-Cup Seal, also known as a U-ring or U-shaped seal, is a type of hydraulic or pneumatic seal commonly used to prevent fluid or gas leakage in various applications. It derives its name from its U-shaped cross-section, which resembles the letter "U." The U-cup seal is designed to provide effective sealing performance in both static and dynamic sealing applications. Attributes: • Made of high-strength material. • Withstands wear and tear. Application: A U-cup seal is used as a sealing component within the hydraulic cylinder of the hammer.It is widely used in Cat 307C, 307D, 308C and 308D Excavators, 416, 416D, 416E, 416F, 420E, 422E, 422F, 424B, 428E, 428F, 430E, 432E, 432F, 434E, 434F, 442E, 444E, 444F, and 450E Backhoes, 70,H70,H70S Ripper, H75E Work Tools.