Upgrade your 2003-2007 6.0 Powerstroke with the Alliant AP63451 Engine Oil Cooler Kit. Designed as a direct stock replacement, this kit meets or exceeds OE specifications for reliable performance and durability. It includes the AP0039 Engine Oil Cooler Gasket Kit for a complete and seamless installation. Trust the Alliant AP63451 for optimal engine cooling and extended engine life.