The product is a pair of genuine Ducati crankcase engine cases halves for a Superbike 748S or 748 . These high-quality engine cases are designed for a 4-stroke engine and are manufactured in Italy. The OE/OEM part number is 22520183D, and the manufacturer part number is 22520183D. This product is essential for those looking to replace damaged or worn out engine cases on their Ducati motorcycle, ensuring a proper fit and reliable performance.