Ring Back Up 7Y4673

Ring Back Up 7Y4673 is an O-ring backup ring for Caterpillar equipment, including articulated dump trucks and Caterpillar engine-machine applications. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by the Caterpillar equipment part number formats 7Y4673 and 7Y-4673. The supplied data identifies this component as a backup ring made of polyamide, with the listed dimensions and equipment applications shown below.

Fitment

The ring is listed for the following Caterpillar equipment types and models:

• Caterpillar articulated dump trucks
• Caterpillar engine-machine applications
• Caterpillar D350E II
• Caterpillar D400E II
• Caterpillar 3066
• Caterpillar 3116
• Caterpillar 3126
• Caterpillar 3126B
• Caterpillar 3176C
• Caterpillar 3196
• Caterpillar 3306

Model compatibility should be checked against the equipment serial number and the sealing arrangement where the ring is installed. The fitment information supplied for this part specifies Caterpillar equipment and the models listed above.

Cross-reference numbers

The part is listed under the following number formats:

• 7Y4673
• 7Y-4673

These two designations represent the same seven-character part number with different formatting. No additional supplier or equipment-manufacturer numbers are provided in the available product data.

Specifications

The cross-section width, inner diameter, and cross-section height are stated in inches. The length, width, and depth values are listed separately in centimetres as supplied product dimensions. The available data does not specify installation position, seal kit contents, thread details, or additional included components.