The Feed Pump Assembly 9440030003 is an excellent diesel fuel plumbing pump that provides a smooth flow of fuel from the reservoir to the fuel injection with no interruptions. Mainly designed for Cummins 4B3.9, 4BT, 4BTA, 6B, 6BT, and 6BTA, the feed pump assembly is suitable for many kinds of commercial vehicles, construction machinery, generators, and industrial use. Made to ideal standards, it guarantees sufficient fuel pressure and flowing speed for the engine to operate smoothly and combustion to take place effectively. The assembly also prevents fuel starvation and protects delicate parts of the injection system from unnecessary wear. The 9440030003 Feed Pump Assembly was designed to last for a long time and work efficiently even under extreme conditions. Therefore, it will definitely serve as a perfect alternative, which will guarantee that your diesel fuel injection systems perform flawlessly.