Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7L7749 found under Cooler Assembly Oil by Peterson Tractor Co. The National Stock Number assigned to this part is 2930004707143, 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 7L7749.