The 2007.5-2018 6.7 HP Reman Cylinder Head is designed to address common failures found in stock and aftermarket heads, providing increased durability and reliability for 6.7L Cummins applications. One of the most significant factory issues is valve seat failure, which can lead to catastrophic engine damage. This remanufactured head features upgraded, heat-resistant valve seats, precision machining, and genuine Cummins valves to ensure long-term performance. The complete remanufacturing process includes thorough cleaning, crack inspection, resurfacing, and installation of new bronze guides, oversized hardened seats, and thread-in soft plugs for superior durability. Manufactured by D&J Precision Machine, this cylinder head is the perfect solution for both stock and performance builds.