Features: 1.OEM Part: Replacement for Tohatsu replacement for Nissan Outboard 3B2660210M, 3B2?65021?1 M, replacement for Sierra 18?8920, replacement for Parsun Makara F8?04000200, etc. 2.Great Fitment: The boat water pump impeller is a perfect replacement for Mariner Outboard Engines 8hp 4 Stroke standard gearcase from 2005 and 9.9hp 4 Stroke standard gearcase from 2005. 3.Purpose: The flexible 6 blades impeller is designed for marine water pumping such as engine cooling, water transfer, wash down and bilge water pumping purposes, suitable for fresh or sea water. 4.Recommendation: Suggest replacing your flexible pump impellers at least once every year or sooner depending on the engine duty; always carrying spare impellers on board before boating activities. 5.High Quality Materials: The heavy duty impeller is manufactured by premium hardened copper and neoprene rubber, conducive to water pump maintenance, reliable and long lasting to use. Specification: Item Type: Water Pump Impeller_x000D_ Material: Copper + Neoprene_x000D_ OEM: 3B2-65021-1, 3B2-65021-0 M_x000D_ Replacement for Tohatsu replacement for Nissan Outboard 3B2660210M, 3B2-65021-1 M_x000D_ Replacement for Sierra 18-8920_x000D_ Replacement for Mercruiser 47-8037481, 8037481_x000D_ Replacement for Parsun Makara F8-04000200_x000D_ Blades: 6_x000D_ Height: Approx. 18.50mm/0.7in_x000D_ Overall Diameter: Approx. 40.00mm/1.6in_x000D_ Shaft Diameter: Approx. 11.50mm/0.5in_x000D_ Fitment: _x000D_ Replacement for Mariner Outboard Engines 8hp 4 Stroke standard gearcase from 2005 _x000D_ Replacement for Mariner Outboard Engines 9.9hp 4 Stroke standard gearcase from 2005 PackageList: 1 x_x000D_ _x000D_ Water Pump Impeller Note: 1. Please double check the part number of your item, matching information is for reference only._x000D_ 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!