1476605 Ring Backup Fits Caterpillar Models
1476605 Ring Backup Fits Caterpillar Models
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One New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Construction Equipment
This aftermarket replacement backup ring (Cat part number 147-6605) is a sealing system component used in high-pressure static and dynamic applications including hydraulic pumps, valves, and engine systems. Backup rings work in conjunction with primary elastomeric seals to prevent seal extrusion and protect the overall sealing system from pressure surges, helping extend the service life of hydraulic and sealing assemblies across a wide range of Caterpillar equipment.
Specifications
- Type: Split Backup Ring
- Inner Diameter: 8.2 mm (0.39 in.)
- Dimensions: 0.39 x 0.39 x 0.04 in.
- Design: Split for ease of assembly
- Applications: High-pressure static and dynamic sealing -- hydraulic pumps, valves, and engine systems
Compatible Models
Caterpillar: Verify fitment by serial number or equipment model using the Cat parts lookup tool. This part number (147-6605) is a broad-application sealing component used across multiple Caterpillar construction and agricultural equipment lines.
Replaces Part Number(s):
1476605, 147-6605
New aftermarket replacement part - not remanufactured, not used.



