Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0R-3675 found under Cylinder Head Diese by Caterpillar Inc. The National Stock Number assigned to this part is 2815014202559, 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 0R-3675.