The Kenworth Replacement Elbow is a practical and reliable solution for replacing the M66-1215 elbow. Made with aluminized material, this replacement elbow fits most Kenworth W900B, L, T600, and T800 models from 1982 to current makes and models. With its durable construction and easy installation, this replacement elbow offers a cost-effective solution for maintaining the performance of your Kenworth truck. Sold individually, this replacement elbow ensures a seamless fit and optimal functionality. Upgrade your truck's exhaust system with this high-quality replacement elbow.