The Mack CXU and Volvo VNL 2011 through 2015 Exhaust Bellow Pipe Kit is a reliable and durable solution for preventing exhaust leaks that can result in lost engine efficiency. This kit includes a 3.25-inch inside diameter exhaust bellow, two clamps, and two gaskets, making it a complete installation. Engineered in North America with metal construction material, this exhaust flex pipe matches the fit and function of the original pipe, ensuring proper fit and performance for this vehicle's application. Quality tested and sold each, this kit is a direct OE replacement for Volvo numbers 21428536, 21959395, and 22307703. Fits most Mack and Volvo CXU and VNL 2011-2015 models with ISX 15.0, MP7, and MP8 engines.