Introducing the Dayco 72032 Curved Radiator Hose - Upper for your 7.3 Powerstroke 1999-2003! This radiator hose is designed to get the job done right, with a precision fit and quality construction. It’s made from durable EPDM rubber, reinforced with knitted rayon fabric to ensure a long lasting, reliable product. Its construction matches SAE J20R4, Class D-1 requirements and meets factory specifications so that you can trust it will keep working under pressure. Easy installation means you’ll be up and running in no time. Shop confidently knowing that this radiator hose was built to last and will get the job done right.