The Navistar Replacement Pipe is a practical solution for replacing the OEM part number 503845-CI. With its 5" diameter and aluminized construction, this International Replacement Pipe offers durability and efficient performance. The 90-degree elbow design ensures a secure fit, making it suitable for most Navistar 9670 makes and models. Sold individually, this replacement pipe is a reliable choice for enhancing your vehicle's exhaust system.