The Kenworth T800 Stainless Steel Lower Coolant Tube is a practical and reliable solution for Kenworth T800 models with Cummins ISX engines. With its black finish and durable stainless steel construction, this coolant tube is designed to fit seamlessly into your vehicle. It is sold individually and is compatible with both OEM and aftermarket numbers F66-1664 and F661664. Improve the performance and longevity of your Kenworth T800 with this high-quality coolant tube.