This Kohler Acoustic Foam Insulation, part number GM38565, is a top-quality OEM product that is brand new and ready for installation. It is specifically designed for use in complete diesel engines, inboard engines & components, and boat parts. This insulation is a must-have accessory for any boat owner, as it helps to reduce noise and vibration while the engine is running. It is easy to install and will provide years of reliable service. Buy with confidence from eBay Motors, the world's largest online marketplace for automotive parts and accessories.