Upgrade your 2007.5-2018 6.7 Cummins with the Cummins 4935974 #4/#5 Fuel Injection Line. Designed as a direct-fit replacement, this line ensures seamless integration with your engine. Crafted from high-quality materials, it offers exceptional durability and reliability while maintaining factory performance standards. Choose the Cummins 4935974 for a precise fit and long-lasting functionality, essential for keeping your engine running smoothly.