2G8739 Retainer for Caterpillar Equipment

The 2G8739 retainer is a hardware spare part used on Caterpillar equipment, including selected Caterpillar autograder models. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified in catalog data by the number 2G8739 and by the hyphenated format 2G-8739. The available application information associates this retainer with Caterpillar motor graders in the G series. The listed dimensions and weight are provided for part identification and compatibility checks before installation.

Fitment

The retainer is listed for the following Caterpillar autograder models:

• Caterpillar 12G autograder
• Caterpillar 130G autograder
• Caterpillar 140G autograder
• Caterpillar 14G autograder
• Caterpillar 160G autograder
• Caterpillar 16G autograder

Fitment is stated for the model designations listed above. The available product data does not specify a production year, serial-number range, machine configuration, or installation position on each model. These details should therefore be checked against the machine serial number and the parts documentation before installation.

Cross-reference numbers

Both 2G8739 and 2G-8739 identify the retainer in the supplied catalog information. The number should be matched with the existing component, machine serial number, and application details when confirming replacement compatibility.

Specifications

The supplied specifications describe the retainer as a separate hardware component. The product data does not indicate that fasteners, seals, additional retainers, or other installation components are included. No material grade, surface treatment, thread specification, or mounting hardware details are provided for this part number.