The Kenworth T600 with Cummins ISX Engine Lower Coolant Tube is a natural finish tube designed to fit most Kenworth T600 models with Cummins ISX engines. This OEM and aftermarket part, with numbers F66-2308-200 and F662308200, is sold individually and offers a practical solution for maintaining the cooling system of your vehicle. Its durable construction and precise fit ensure reliable performance, making it an essential component for your Kenworth T600 with Cummins ISX engine.