Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CCU34-0017 found under Muffler Intake by Donaldson Co Inc. The National Stock Number assigned to this part is 2990011807093, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CCU34-0017.