This Toyota OEM Water Pump Pulley is a genuine OEM part made in Japan. It is a direct replacement for the 16173-31010 part number and is designed to fit the 2006-2012 Toyota RAV4 3.5L V6 engine. The item includes only the pulley and does not come with any mounting hardware. With a 30-day return policy, buyers can feel confident in their purchase. This item is not modified and does not come as a custom bundle. It is an interchange part number for 1617331010 and 16173 31010. This engine water pump type is a crucial component for the proper functioning of your vehicle's cooling system.