CAT 1S-6478: 477.77MM INTERNAL DIAMETER SEAL RING

The CAT 1S-6478 is a Caterpillar seal ring identified in the listing as having a 477.77 mm internal diameter. Seal rings help maintain fluid, pressure, or contamination control between mating surfaces, and this part should be matched to the exact Cat assembly or seal kit where 1S-6478 is specified.

Specifications

• Manufacturer: Caterpillar / CAT
• Part Number: 1S-6478
• Part Type: Seal ring
• Internal Diameter: 477.77 mm per listing title
• System: Sealing component for compatible Cat assemblies
• Function: Helps seal between specified mating surfaces
• Fitment: Must be verified by assembly group, serial number, and seal dimensions

Key Features

• Large internal diameter seal ring for compatible Caterpillar assemblies.
• Supports sealing integrity in the correct machine or component application.
• Useful for repair, reseal, or overhaul work where part 1S-6478 is specified.
• Should be installed only after confirming dimensions and assembly fit.

Cross References

• Primary CAT part number: 1S-6478.
• Confirm supersession, material, and seal kit relationship with Cat documentation.

Machine Compatibility

• Compatibility depends on the machine, component group, and sealing location.
• Verify by serial number and parts manual before purchase or installation.

Typical Applications

• Heavy equipment component sealing.
• Repair and overhaul work.
• Seal replacement during component maintenance.
• Caterpillar seal inventory management.

Search Keywords

CAT 1S-6478 seal ring, Caterpillar 1S6478 477.77mm internal diameter seal ring, Cat large seal ring, CAT sealing component.

Caterpillar replacement seal, heavy equipment seal ring, component overhaul seal, HRS Supplies.