Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 22041K B1 found under Head Fluid Filter by Mahle Filtersysteme Gmbh. The National Stock Number assigned to this part is 2910121562138, and the Federal Supply Class is 2910 Engine Fuel System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 22041K B1.