Upgrade your Cummins engine with the 2× 3328740 Rectangular Ring Seal, designed to fit seamlessly into the ISM11, QSM11, and M11 models. These seals are precision-engineered to provide exceptional corrosion resistance and durability, ensuring long-lasting performance and reliability for your heavy machinery. Crafted with meticulous attention to detail, these ring seals are a testament to quality, with part numbers including 4356679 and 3024678, 3029354. Manufactured in China, they are ideal for maintaining the integrity of your engine's seals and retaining optimal functionality. Keep your equipment running smoothly with these robust and precisely crafted seal replacements.