The Peterbilt Replacement Elbow is a practical and reliable solution for replacing the 14-13412 model. With a 5-inch diameter and aluminized construction, this replacement elbow is designed to fit Peterbilt 357 Single Exhaust systems. Sold individually, it offers a cost-effective option for maintaining your vehicle's exhaust system. With its compatibility with the OEM part number, installation is hassle-free. Trust this high-quality replacement elbow to ensure optimal performance and durability for your Peterbilt truck.