6U3042 Ring Backup for Caterpillar

6U3042 is a ring backup used in transmission seal applications on Caterpillar equipment. It is listed for Caterpillar articulated dump trucks and Caterpillar engine-machine applications, including the D350E, D400E, 3406, and 3406C models. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a Ring Backup and belongs to the Transmission Seal Rings category. The supplied application data associates it with Caterpillar equipment rather than with a separate standalone consumer or industrial application. Fitment should be checked against the machine model and the part number being replaced before installation.

Fitment

• Equipment brand: Caterpillar
• Equipment type: Articulated dump truck
• Equipment type: Engine-machine application
• Caterpillar D350E
• Caterpillar D400E
• Caterpillar 3406
• Caterpillar 3406C

The listed equipment applications cover the Caterpillar D350E and D400E articulated dump truck models, as well as the Caterpillar 3406 and 3406C engine-machine applications. The available product data does not specify a particular installation position, transmission section, or seal assembly in which the ring is installed.

Cross-reference numbers

• 6U3042

Part number 6U3042 is the reference number associated with this Ring Backup. The same number is used as the CTP product SKU and is listed for identification of the corresponding Caterpillar equipment part. No additional supplier or equipment-manufacturer numbers are provided in the available data.

Specifications

The listed length, width, and depth are the package or product dimensions supplied for identification of item 6U3042; the available data does not specify whether these measurements represent the installed sealing diameter, outside diameter, or another dimensional reference. Material, thread, sealing profile, installation position, and kit contents are not specified.