Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PR891 found under Radiator Engine Coolant by Modine Mfg Co. The National Stock Number assigned to this part is 2930002440470, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PR891.