Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9N937 found under Rectifier Assembly by Caterpillar Inc. The National Stock Number assigned to this part is 2920010947746, and the Federal Supply Class is 2920 Engine Electrical System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9N937.