Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1W0148 found under Core Assembly Fluid by Caterpillar Inc. The National Stock Number assigned to this part is 2930016500035, 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 1W0148.