The Grand Rock W900A 1982 & Older Kenworth 6 Inch Reduced to 5 Inch (Right) is a high-quality replacement exhaust part designed specifically for W900A 1982 & Older Kenworth models. This product, sold individually, effectively replaces the K180-10742R part. With its reduced size, it offers improved functionality and compatibility. Crafted with precision and durability in mind, this exhaust part ensures optimal performance and longevity for your vehicle. Upgrade your Kenworth with this practical and reliable replacement, enhancing its overall efficiency and functionality.