312-4255: U-cup Rod Seal

Description: Cat U-cup seals like 312-4255 provide a fluid tight seal between the hydraulic cylinder and shaft. Their U-Shaped cross-section automatically compensates for higher pressures to maintain a constant seal. Attributes: • Material: Plastic and Stainless Steel • Seal Type: Spring loaded • For Rod Diameter: 399.98 mm (15.75 in) • Outside Diameter: 417.3 mm (16.43 in) • Inside Diameter: 396.9 mm (15.62 in) Application: Used as needed to service hydraulic cylinder components to keep you equipment leak free. Consult your owner’s manual or contact your local Cat dealer for more information.