Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z-2 443 120 022 found under Tappet Engine Poppet Valve by Bosch Robert Corp. The National Stock Number assigned to this part is 2815013260913, 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 Z-2 443 120 022.