Mercury - Throttle Body Isolator Verado L6 Series Hard-Anodized Vibration Damper 8M0113513. Overview. When you spend enough time behind the helm of a Verado-powered boat, you start to appreciate the little things that keep the ride smooth. Not just the big components, but the quiet heroes tucked inside the engine - the ones that steady the noise, calm the vibration, and help the powerband feel clean from idle to wide open throttle. The Mercury 8M0113513 Isolator is one of those parts. It takes s