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 Material: Copper + Neoprene OEM: 3B2-65021-1, 3B2-65021-0 M Replacement for Tohatsu replacement for Nissan Outboard 3B2660210M, 3B2-65021-1 M Replacement for Sierra 18-8920 Replacement for Mercruiser 47-8037481, 8037481 Replacement for Parsun Makara F8-04000200 Blades: 6 Height: Approx. 18.50mm/0.7in Overall Diameter: Approx. 40.00mm/1.6in Shaft Diameter: Approx. 11.50mm/0.5in Fitment: Replacement for Mariner Outboard Engines 8hp 4 Stroke standard gearcase from 2005 Replacement for Mariner Outboard Engines 9.9hp 4 Stroke standard gearcase from 2005 Package List 1 x Water Pump Impeller