7E3901 Tube for Caterpillar Equipment

The 7E3901 tube is an air-intake/exhaust pipe extension used with Caterpillar equipment and Caterpillar industrial, generator, and machine engine applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The listed application data covers off-road dump trucks, wheeled tractor-scrapers, industrial engines, machine engines, generators, engine-generator sets, and cold milling machines. Compatibility should be checked by comparing the equipment model and the required part number before installation.

Fitment

• Off-road dump trucks: Caterpillar 768C, 769C.
• Wheeled tractor-scrapers: Caterpillar 639D.
• Industrial engines: Caterpillar 3408, 3408B, 3408C, 3412, 3412C, SCT673, SPS342, SPT342.
• Machine engines: Caterpillar 3408.
• Generators: Caterpillar WEG.
• Engine-generator sets: Caterpillar 3408, 3408B, 3408C, 3412, 3412C, SR4.
• Cold milling machines: Caterpillar PR-450, PR-450C.

The fitment list includes equipment model designations as provided for the 7E3901 tube. Engine and generator applications are listed separately because the same engine series may be used in more than one Caterpillar equipment configuration.

Cross-reference numbers

• 7E3901
• 7E-3901

7E3901 and 7E-3901 are the number formats associated with this tube. The number may appear with or without the separator when searching parts catalogues and service records.

Specifications

The supplied dimensional data identifies the length, width, and depth as 10.1 cm each. No additional information is provided for tube diameter, wall thickness, connection type, thread specification, clamp arrangement, or included installation hardware.

The part is listed as a tube within the air-intake/exhaust pipe extension category. The available data does not specify a separate installation position, the complete exhaust or intake assembly configuration, or the number of tubes supplied in one package.