1577245 Ring-Backup Fits Caterpillar Models
1577245 Ring-Backup Fits Caterpillar Models
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One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Construction Equipment
This nylon backup ring is a hydraulic sealing component used in Caterpillar hydraulic cylinders and related systems. Positioned alongside primary O-rings or seals within the gland groove, the backup ring prevents seal extrusion into clearance gaps when the system is pressurized, extending seal life and maintaining reliable fluid containment under high-pressure operating conditions. Common applications include hydraulic cylinders, control valves, and hydraulic track adjusters on Caterpillar construction equipment.
Specifications
- Material: Nylon
- Unit of Measure: Inch
- Weight: 0.02 lbs
Compatible Models
Caterpillar (Cat): Verify fitment by serial number with your Cat dealer or by cross-referencing part number 1577245 against your machine's parts manual. This backup ring fits Caterpillar equipment as specified by OEM part number 1577245.
Replaces Part Number(s):
1577245
New aftermarket replacement part - not remanufactured, not used.
