2W4381 Pump Fits Caterpillar Models

One New Aftermarket Replacement Fuel Transfer Pump for Caterpillar (Cat) 3406 Engines

This aftermarket replacement fuel transfer pump fits Caterpillar (Cat) 3406 series diesel engines. The fuel transfer pump -- also known as a fuel lift pump -- draws diesel fuel from the tank and delivers it to the injection system, and primes the fuel lines by removing air when the engine is started. This pump is identified in Caterpillar service documentation as the Pump GP-Fuel Transfer for the 3406 engine family.

Serial Number Restrictions

Important: This pump is associated with specific 3406 engine serial number ranges. Confirmed engine serial number applications include: 70V15842, 70V15846 and Up, 70V16376 and Up, and 70V16551 and Up. Verify your engine serial number before ordering to confirm fitment.

Compatible Models

Caterpillar 3406 Engine Series: 3406 -- verify engine serial number range (see above). The 3406 platform powered a wide range of Cat construction and industrial equipment including excavators, articulated trucks, motor graders, and other heavy-duty machines. Confirm your specific machine model and engine serial number with your Cat dealer or parts manual before ordering.

Replaces Part Number(s):

2W4381, 2W-4381

New aftermarket replacement part - not remanufactured, not used.