This fuel supply tube, with part number 3964143, is designed to fit perfectly in Cummins engines. Made of durable steel material, it ensures efficient and reliable fuel delivery to the engine compartment. It is manufactured in China and is suitable for use in a wide range of vehicles. The tube is an OE/OEM part that is easy to install and provides long-lasting performance. It belongs to the hoses, lines, and pipes category of car and truck parts and accessories and is a crucial component of the air and fuel delivery system. If you're looking for a reliable and high-quality fuel supply tube for your Cummins engine, this is the perfect choice.