4W5374 Inlet Valve for Caterpillar Equipment

4W5374 is an inlet valve used in Caterpillar generator equipment and Caterpillar industrial engines. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as an engine inlet valve and is intended for installation in the valve train of the listed Caterpillar engine and generator applications. Fitment should be confirmed against the engine model, existing valve, and applicable parts documentation before installation.

Fitment

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

• Caterpillar SR4 generator equipment
• Caterpillar G3406 industrial engine
• Caterpillar G3408 industrial engine
• Caterpillar G3408B industrial engine
• Caterpillar G3412 industrial engine

The available application data identifies both Caterpillar generator equipment and Caterpillar industrial engines. The SR4 designation is included in the source fitment information as generator equipment, while the G3406, G3408, G3408B, and G3412 designations are listed as industrial engine models.

Cross-reference numbers

The inlet valve is listed under the following number formats:

• 4W5374
• 4W-5374

4W5374 is the SKU and unhyphenated part number format. 4W-5374 is the hyphenated format shown for the same inlet valve reference.

Specifications

The dimensional and weight values above are the listed product data for this part number. The source information does not specify the valve stem diameter, head diameter, overall dimensional tolerance, material, valve-seat angle, or installation hardware.