This mounting spacer, with the manufacturer part number 3626867, is designed to fit Cummins engines such as KTA19, KTA38, and KTA50. It is a necessary component for proper installation and operation of these engines. The unit is made in China and comes in a single quantity. This mounting spacer is compatible with various commercial truck parts. It is a reliable and durable unit that will ensure smooth functioning of your Cummins engine. Thank you for considering this product.