This power trim relay is a must-have for any boat with a Volvo Penta sterndrive motor. It ensures smooth operation of the power trim system, allowing you to easily adjust the angle of your motor for optimal performance on the water. The relay is manufactured by Sierra, a trusted brand in the boating industry, and has the part number 18-5705 for easy identification. Whether you're replacing a faulty relay or upgrading your boat's electrical system, this reliable and high-quality piece is the perfect choice.