3R2704 Union-Flared Adapter for Caterpillar Equipment

The 3R2704 is a union-flared fluid fitting adapter with a 3/4-16 thread, used on Caterpillar engines, generator sets, and excavators. The listed equipment applications include Caterpillar 3116, 3304, 3306, 3408, 3408C, 3408E, 3412, G3516B, 3616, and 235D models.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The adapter is listed for the following Caterpillar equipment and engine applications:

• Caterpillar engine applications
• Caterpillar generator set applications
• Caterpillar excavator applications
• Caterpillar 3116
• Caterpillar 3304
• Caterpillar 3306
• Caterpillar 3408
• Caterpillar 3408C
• Caterpillar 3408E
• Caterpillar 3412
• Caterpillar G3516B
• Caterpillar 3616
• Caterpillar 235D

Fitment is identified by the Caterpillar equipment model and the corresponding part number. The adapter is cataloged for use in fluid fitting and adapter applications on the listed engines, generator sets, and excavators. Before installation, the part number, thread specification, and machine model should be compared with the service parts information for the specific equipment configuration.

Cross-reference numbers

The 3R2704 adapter is listed under the following part numbers:

The numbers above identify the same cataloged union-flared adapter application. Use the number stamped or recorded for the machine when checking service documentation and component compatibility. The equipment manufacturer reference is associated with Caterpillar applications; the part is supplied as an aftermarket component manufactured by CTP.

Specifications

The component is identified by its union-flared design and 3/4-16 thread specification. The supplied dimensional data is listed as length, width, and depth; thread compatibility and the corresponding Caterpillar part number should be verified before fitting the adapter to a particular engine, generator set, or excavator.