7E7739 Air Compressor for Caterpillar Equipment

7E7739 is an air compressor used on Caterpillar off-road dump trucks, wheeled tractor-scrapers, and industrial engine applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The component is identified in the supplied application data as compressor G. The listed equipment applications include Caterpillar machines equipped with 3408, 3408B, and 3406A engine configurations.

Fitment

The air compressor is listed for the following Caterpillar equipment models and machine series:

• Off-road dump trucks: 769C, 769D, 771C, 771D, 772B, 773B, 773D, 773E, 775B, 775D, 775E.
• Wheeled tractor-scrapers: 631E, 631D, 631G, 633D, 637D, 633E II, 637E, 651B, 651E, 637G, 639D, 657E.
• Industrial engine applications: 3408, 3408B.
• Additional application listed in the source data: 3406A.

Fitment should be confirmed against the machine serial number and the existing compressor identification before installation, especially where the same equipment model was produced in multiple configurations.

Cross-reference numbers

The part is identified by the following number formats:

• 7E7739
• 7E-7739

These two entries represent the same supplied part number with different formatting. No additional supplier or equipment-manufacturer cross-reference numbers are provided in the available product data.

Specifications