RING - BACK-UP (CAT CT1049894)

A worn back-up ring can allow seal extrusion under pressure, leading to fluid loss and system inefficiency. This aftermarket replacement part references CAT as the OE maker and cross-references part number CT1049894. The ring functions as a mechanical barrier that supports a primary seal within a groove. When the ring deteriorates, the seal may fail prematurely, causing leakage and contamination. Keeping a back-up ring in sound condition helps maintain consistent sealing force in static or dynamic applications. The item ships at approximately 0.01 POUNDS. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CT1049894, ct1049894