The Navistar Replacement Pipe is a practical solution for replacing the OEM part number Navistar 503841-CI. With a 5" diameter and aluminized construction, this intermediate pipe is designed for 63" cabs. Its durable build ensures long-lasting performance, making it a reliable choice for any vehicle. Sold individually, this replacement pipe offers a cost-effective solution for maintaining the functionality of your vehicle's exhaust system. Upgrade your vehicle with this high-quality replacement pipe today.