Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 65 01801 5023 found under Valve Positive Crankcase Ventila by Doosan International Usa Inc. The National Stock Number assigned to this part is 2990015637000, 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 65 01801 5023.