Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3903492 found under Cap Main Bearing by Cummins Inc. The National Stock Number assigned to this part is 2815012113901, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3903492.