The Gear Housing Gasket 4999877 is a specialized gasket designed for use with Cummins diesel engines, specifically the ISX, QSX, X15, ISZ, and QSZ13 models. Made in China, this unit is a single piece that provides a secure seal for the gear housing, ensuring proper functionality and reliability for the engine. This gasket is a crucial component for maintaining the integrity and performance of the engine, making it a valuable addition to any industrial or commercial setting utilizing Cummins diesel engines. We supply premium, precision-engineered parts specifically for Cummins engines. If you can’t find what you’re looking for in store, it doesn’t mean we’re out of stock. The possible reasons are. The product was not put on the shelves in time. The product link was invalid. The keyword you searched for was incorrect. Your part number/machine model/serial number was incorrect. Category restrictions, more optional models cannot be uploaded. Therefore, please be sure to contact our customer service to inquire whether the goods you need are actually in stock. We art confident that we can provide the parts you need. We will respond within 24 hours. All parts’s photos are our original work, and any unauthorized use will be pursued.