This set of main bearings is specifically designed for Cummins engines. The bearings are made from high-quality materials to ensure durability and long-lasting performance. The OE/OEM part number for this set is 3801261 and the manufacturer part number is 3030217 . It is suitable for use in engines that require a main bearing replacement. The bearings are compatible with a range of Cummins engines and are designed to provide reliable and efficient performance.