O-RING - HYDRAULIC UNIT (CAT CT27809860)

CT27809860: A damaged retaining ring can allow hydraulic fluid to bypass, reducing system pressure and causing erratic operation. This aftermarket replacement part references CAT as the OE maker and cross-references part number CT27809860. The O-RING - HYDRAULIC UNIT functions as a static seal to prevent fluid leakage between mating surfaces. Over time, exposure to heat and pressure can cause the rubber to harden and crack, leading to external drips or internal cross-port leakage. During a routine seal inspection, a technician may find the ring flattened or brittle, indicating replacement is needed. The item ships at approximately 0.006 pounds. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT27809860, ct27809860