This bottom cowl is a perfect fit for your Mercury or Mariner outboard engine between 1975-1989. It is designed to protect the engine's lower unit and is compatible with 35-40 HP 2-cylinder engines. The cowl is made from high-quality materials, ensuring durability and longevity. It is easy to install and is a great addition to your boat parts collection. The cowl is specifically designed for Mercury and Mariner outboard engines, ensuring a perfect fit and optimal performance. Add this bottom cowl to your collection today and enjoy the peace of mind that comes with a properly protected engine.