For a reliable replacement fuel injection line for your 6.7 Cummins, the Cummins 4935981 #1 Fuel Injection Line is the top choice. This direct-fit line ensures a seamless integration with your engine, maintaining the factory performance and specifications. Made from high-quality materials, it promises durability and long-lasting reliability. For optimal engine performance and peace of mind, trust the renowned quality of Cummins. Upgrade your fuel system with the 4935981 #1 Fuel Injection Line today.