1336716 Ring Backup for Caterpillar

The 1336716 Ring Backup is a transmission seal ring used in Caterpillar equipment, including Caterpillar engines, machine applications, and excavators. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

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

• Caterpillar 3046
• Caterpillar 3054
• Caterpillar 3054C
• Caterpillar 3054E
• Caterpillar C4.2
• Caterpillar 315B L
• Caterpillar 315C
• Caterpillar 315D L
• Caterpillar 317B L
• Caterpillar 317B LN

Application categories identified for this part are Caterpillar engine-machine assemblies and Caterpillar excavators. Compatibility should be confirmed against the equipment model and the part number installed in the transmission seal assembly.

Cross-reference numbers

• 1336716
• 133-6716

The number 1336716 is the SKU used for this part. The hyphenated form 133-6716 is also used for identification of the same ring backup.

Specifications

The ring backup has a polyamide construction and a circular profile with a listed inner diameter of 3.94 inches. The specified cross-section dimensions are 0.09 inches in height and 0.05 inches in width. These dimensions identify the sealing-ring size for comparison with the removed part and the applicable Caterpillar assembly documentation.

The listed fitment includes Caterpillar 3046, 3054, 3054C, 3054E, and C4.2 engine applications, as well as Caterpillar 315B L, 315C, 315D L, 317B L, and 317B LN excavator models. Model designation, serial number, and the number marked on the removed component should be checked before installation because equipment configurations can vary within the same model series.