The International LoneStar And ProStar 2009 Through 2018 Flex Bellows Kit is a reliable and durable solution for preventing exhaust leaks and maintaining engine efficiency. This kit includes a 4-inch inside diameter exhaust bellow, 2 clamps, and 2 gaskets, providing a complete installation. Engineered in North America with high-quality materials, this flex pipe has undergone rigorous testing to ensure proper fit and performance. It is a direct replacement for most International LoneStar and ProStar 2009-2018 models, with the OE replacement number Navistar 3846462C5. Trustworthy construction and complete installation make this flex bellows kit a practical choice for long service life.