Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3B9005 found under Bearing Assembly Water Pump Shaf by Caterpillar Inc. The National Stock Number assigned to this part is 2930003636347, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3B9005.