LS Oil Cooler Bypass Plate Gasket 12611384 Fits all 1997-2013 LS Based V8 Engines 4.8 5.3 5.7 6.0 6.2 Will NOT work on engines with oil coolers installed, they require a gasket with two ports. The LS Oil Cooler Bypass Plate Gasket is a crucial component designed for LS series engines. This gasket ensures a reliable and leak-free seal between the engine block and the oil cooler bypass plate. Made from high-quality materials, it is engineered to withstand the high temperatures and pressures encountered in the engine's oil system. The gasket's precision cut ensures a perfect fit for hassle-free installation. It's an essential item for maintaining the integrity of the engine's cooling system, preventing oil leaks, and ensuring optimal engine performance and longevity. This gasket is ideal for both stock replacements and performance upgrades in vehicles equipped with LS series engines.