This injector fuel supply tube fits Cummins engines with QSC8.3 ISC technology. It is designed for optimal performance and reliability, ensuring that your vehicle runs smoothly and efficiently. The hose is made from high-quality materials and is built to last, making it a great investment for any car or truck owner. With its OE/OEM part number of 3944696 and its manufacturer part number of 3944696, this hose is designed to meet the highest standards of quality and functionality. It is perfect for use in all types of vehicles, especially those with Cummins engines. Whether you're replacing a worn-out hose or upgrading your vehicle for better performance, this injector fuel supply tube is a great choice.