This injector fuel supply tube fit Cummins engine 6BT is a crucial component for the proper functioning of your vehicle's fuel system. It is designed to withstand the high pressure and temperature conditions required for optimal engine performance. The tube is made of durable materials that ensure long-lasting reliability and resistance to corrosive fluids. With OE/OEM part number 3964703 and manufacturer part number 3964703, this hose is a perfect fit for your Cummins engine. It is compatible with various models and brands, making it a versatile component for your vehicle's fuel system. This hose is ideal for those looking for a high-quality replacement part for their Cummins engine without compromising on performance.