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1850348 Ring-Back Up Fits Caterpillar Models
1850348 Ring-Back Up Fits Caterpillar Models
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$45.00 AUD
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One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Excavators
This PTFE backup ring (part number 1850348) is a hydraulic sealing component used in the hydraulic pump actuator assemblies of Caterpillar C-Series and related excavators. Backup rings support primary seals under pressure, preventing extrusion and extending seal life in high-pressure hydraulic circuits.
Specifications
- Inside Diameter: 38 mm (1.5 in)
- Cross Section Height: 3 mm
- Cross Section Width: 1.2 mm
- Material: PTFE (Polytetrafluoroethylene)
Compatible Models
Caterpillar Excavators: 318C, 319C, 320C, 320C FM, 322C, 322C FM, 325C, 325C L
Caterpillar Wheeled Excavators: M325B
Caterpillar Engine Models: 3066, 3116, 3126, 3126B
Replaces Part Number(s):
1850348
New aftermarket replacement part - not remanufactured, not used.



