The OEM GM Engine Oil Cooler Gasket RH 12640850 is a genuine part made by GM specifically for Silverado, Sierra, Express, and Savana vehicles. This direct replacement gasket ensures a proper fit and sealing for the engine oil cooler, providing quality assurance for your vehicle's cooling system. With the manufacturer part number 12640850 and other part number 97358842, you can trust that this gasket is a reliable and compatible component for your vehicle's engine.