Quicksilver water pump impeller 8M6010326 is for use on select 3-cylinder 85-90hp Yamaha outboards. Replace damaged or worn water pump impellers to help keep your engine at proper operating temperatures. This Quicksilver water pump impeller is designed to meet all OEM specifications. Impeller only. See your owner's manual for recommended replacement schedule. Replacement hardware for installation sold separately. See your owner's or service manual for specific application and installation information. Hardware for installation sold separately. This Quicksilver water pump impeller replaces the following OEM part number: 688‐44352‐03‐00. Also found in the aftermarket as 18-3070.