The product is a Diesel Exhaust Fluid (DEF) hose designed specifically for Peterbilt 367 and 388 trucks from 2013 to 2014. Manufactured by Gates, it comes with the OE/OEM part number 4212-2047 and the manufacturer part number DEF7043. The hose is essential for the proper functioning of the diesel exhaust fluid system, ensuring that the vehicle's emissions are properly treated and reduced.