This fuel supply tube is designed to fit Cummins engines and is made of durable steel material. It is compatible with OE/OEM part number 3978031 and was manufactured in China. The tube is specifically designed for placement in the engine compartment and is a crucial part of the fuel delivery system. As a brand, Cummins is known for producing high-quality engines and this fuel supply tube is no exception. It is a reliable component that is essential for the proper functioning of your engine. Whether you're replacing a worn-out part or upgrading your engine, this fuel supply tube is a great choice.