This new Mercury MerCruiser thermostat housing is a high-quality replacement part for your boat's engine. It is designed to fit perfectly with Aqua Power 5000 and Sierra 18-1968 models. The part is made in the United States and comes from a trusted brand, Aqua Marine. The housing is in excellent working condition and comes with no warranty. It is perfect for boat owners who want to ensure their engine runs smoothly and efficiently. Buy with confidence and get this top-notch replacement part for your boat today. What you see in pics is what you get.