The Dynaflex Kenworth W900L Right Side 7 Inch Elbow is a practical and reliable product designed to enhance your vehicle's exhaust system. With a 7-inch to 5-inch taper-loc reduction on the top side of the elbow, it seamlessly accepts a 7-inch O.D. stack. The 40-step feature ensures a secure fit and optimal performance. This elbow is specifically designed for Kenworth W900L models and is compatible with OEM number K-18615CP. Upgrade your exhaust system with this high-quality Dynaflex product for improved efficiency and durability.