This gasket is designed to fit perfectly onto the rocker lever housing of Cummins Engine models ISDe and ISBe. Made from high-quality rubber material, it ensures a tight seal for optimal engine performance. The product comes in a pack of one and has the OE/OEM Part Number 4899231. The gasket is black in color and is manufactured in China. It is an essential component for maintaining the engine's efficiency and preventing oil leaks.