Upgrade your Cummins M11 ISM QSM engine with the 4356679 Corrosion Resistor Head & Seal, a crucial component designed to ensure optimal performance and durability. This unit, with part numbers including 3819767 and 3029354, supersedes older models, guaranteeing a precise fit and reliable function for your engine. Crafted in China, this corrosion-resistant head is a standout choice for engine enthusiasts and professionals alike. With a single unit quantity available, make the smart decision to invest in the longevity and efficiency of your engine with this high-quality, unit-type replacement part.