This timing cover is designed for Detroit Diesel Series 60 12.7L engines. It is made of high-quality aluminum alloy and is an OEM part with the OE/OEM part number 23529364. The cover is perfect for those who want to replace their old or damaged timing cover without worrying about the quality of the product. It is compatible with most Detroit Diesel engines and is a great addition to any engine maintenance kit. Thanks for looking??