This high quality gear housing cover is a perfect fit for the Cummins Diesel Engine 6BT5.9. Made in China by a reputable manufacturer, this unit is designed to provide reliable and long-lasting performance. The part number for this gear housing cover is C5267783 and 3920519, and it is available in a unit quantity of one. Ideal for commercial trucks and other heavy-duty vehicles, this gear housing cover is an essential component in ensuring the smooth operation of your engine. It is a great investment for any vehicle owner looking to maintain the performance and longevity of their engine. Place your order today and experience the benefits of this high-quality gear housing cover!