The Dorman 13" Metal Exhaust Bellow Pipe for Mack / Volvo is the perfect solution for preventing exhaust leaks and restoring engine efficiency. It is made from durable materials for reliable performance and long service life. It has undergone vehicle fitment and material testing to ensure proper fit and performance for this vehicle's application. The I.D. is 4.75" and the length is 13". It also includes all the hardware required for a complete replacement. FleetPride is your First Click in Heavy Duty®.