1793048 Ring-Backup Fits Caterpillar Models
1793048 Ring-Backup Fits Caterpillar Models
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One New Aftermarket Replacement Backup Ring (Seal) for Caterpillar (Cat) Construction Equipment
This backup ring is a hydraulic sealing component used in the recoil track adjuster system on Caterpillar construction equipment. It prevents fluid leakage from the track adjuster, maintaining proper track tension and protecting the integrity of the hydraulic seal under high-pressure operating conditions. Backup rings are installed alongside primary O-ring seals to resist seal extrusion in dynamic and static hydraulic applications.
Specifications
- Outer Diameter: 90mm
- Application: Recoil track adjuster sealing system
- Part Type: Backup ring / anti-extrusion ring
Compatible Models
Caterpillar (Cat): Verify fitment by model and serial number - this part is used across multiple Caterpillar excavator and crawler dozer platforms. Consult your parts manual or Cat dealer to confirm compatibility for your specific machine configuration.
Replaces Part Number(s):
1793048, 179-3048
New aftermarket replacement part - not remanufactured, not used.



