The Kenworth T660 Stainless Steel Lower Coolant Tube is a durable and practical solution for your Kenworth T600 models. Made with high-quality stainless steel construction, this coolant tube is built to last. It fits most Kenworth T600 models and is sold individually. With its OEM and aftermarket number F66-1680, this coolant tube ensures a perfect fit and reliable performance. Upgrade your cooling system with this stainless steel coolant tube for enhanced durability and peace of mind.