This gear housing is a perfect fit for Cummins Diesel Engine models QSL9.3 L9.3 and QSC. It is designed to provide long-lasting and reliable performance, ensuring smooth and efficient operation of your engine. Manufactured in China, this unit comes in a quantity of one and is ideal for use in commercial trucks. The gear housing is made of high-quality materials and meets all the necessary specifications and standards for optimal performance. It is a great addition to your engine and provides excellent value for your money. Whether you are replacing an old or damaged gear housing or upgrading your engine, this unit is an excellent choice.