Looking for a top-quality cylinder head gasket for your 5.9 Cummins? Look no further than the Mahle 54557A! This gasket is standard thickness and made from multi-layer material, so it's sure to stand up to whatever you throw at it. Plus, it's specifically designed for 2003-2007 model years, so you know it's a perfect fit. Don't trust just any old gasket to keep your engine running like a top - go with the Mahle 54557A and rest easy knowing you're getting the best.