Mercury - MP Alert Stainless Oval Bezel Trim Ring Accessory 8M0072341. Overview. The MP Alert system is all about visibility, but it can still look clean and polished on the boat. The Mercury 8M0072341 Stainless Oval Bezel adds a finished, high-end look to any oval-style MP Alert light. Made from marine-grade stainless steel, it frames the light with a sleek protective trim ring that blends seamlessly with modern boat styling-especially on the cowl-mounted MP Alert setups for the 3.4L V6 and 4.6