Ring-Backup 1476605

Ring-backup 1476605 is a slit backup ring used as part of a sealing arrangement in Caterpillar equipment. The ring is installed with a seal or O-ring to help limit seal extrusion in high-pressure applications and to support the sealing system during pressure surges.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The equipment brand applicable to this part is Caterpillar.

Fitment

The ring-backup is listed for use in the following Caterpillar equipment types:

• Caterpillar asphalt pavers
• Caterpillar backhoe loaders
• Caterpillar earthmoving compactors

Specified Caterpillar machine models include:

• Caterpillar AP-1050B
• Caterpillar BG-245C
• Caterpillar 446B
• Caterpillar 446D
• Caterpillar 825G
• Caterpillar 826G
• Caterpillar 826G II
• Caterpillar 826H
• Caterpillar 836G
• Caterpillar 836H

Fitment should be confirmed against the machine model, serial number, and the dimensions of the removed ring before installation. The listed model application covers the equipment identified in the available part data; no additional machine models are specified here.

Cross-reference numbers

1476605 and 147-6605 identify the same ring-backup part in unhyphenated and hyphenated number formats. No additional supplier or equipment-manufacturer cross-reference numbers are specified in the available data.

Specifications

The ring has a slit design and is made from PTFE. Its stated cross-section dimensions are 0.05 inch in width and 0.05 inch in height, with an inner diameter of 0.32 inch. These dimensions describe the ring itself and should be checked against the corresponding seal groove and sealing components during parts identification.

The listed product dimensions are 1 cm in length, 1 cm in width, and 0.1 cm in depth, with a stated weight of 0.1 lb. The available data does not specify a separate installation position, quantity per assembly, or seal and O-ring kit contents.