The Peterbilt 389 Stainless Steel Lower Coolant Tube is a durable and practical solution for Peterbilt 389 models. Made from 304 stainless steel, this coolant tube is built to last. It fits most Peterbilt 389 models and is compatible with OEM and aftermarket numbers F66-6305 and F66-6828. With its sturdy construction and easy installation, this coolant tube provides reliable performance and peace of mind. Upgrade your Peterbilt 389 with this high-quality stainless steel coolant tube for improved functionality and longevity.