The Industrial Injection Premium Stock Plus Cylinder Head is a reliable, performance-oriented upgrade for 1989-1998 Dodge Ram 5.9L 12 Valve Cummins engines. Designed as a direct bolt-on replacement, this cylinder head combines premium valvetrain components with proven durability to deliver long-lasting performance for daily drivers, tow rigs, and performance builds.
Each cylinder head comes fully assembled and ready for installation, featuring stainless steel nitride-coated valves, high-strength alloy valve guides, upgraded 150lb valve springs, and top hat valve seals. The upgraded components provide increased durability, improved valve control, and enhanced reliability compared to factory cylinder heads.
The 7mm injector bore design ensures compatibility with popular injector upgrades, making this cylinder head an excellent choice for stock replacement and mild-to-moderate performance applications.