Features 1. OEM Part: Replacement for Tohatsu, Nissan Outboard 3B2660210M, 3B2-65021-1M, Sierra 18-8920, Parsun Makara F8-04000200, and other compatible models. 2. Great Fitment: Designed as a direct 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-blade impeller is engineered for marine water pumping applications including engine cooling, water transfer, wash down, and bilge water pumping; suitable for both fresh and saltwater use. 4. Recommendation: It is recommended to replace the pump impeller at least once a year or more frequently based on engine usage; always carry a spare impeller on board. 5. High Quality Materials: Constructed from premium hardened copper and neoprene rubber for durability, reliable performance, and extended service life. Specification Item Type: Water Pump Impeller Material: Copper + Neoprene OEM Numbers: 3B2-65021-1, 3B2-65021-0M Compatible With: Tohatsu, Nissan Outboard 3B2660210M, 3B2-65021-1M, Sierra 18-8920, Mercruiser 47-8037481, 8037481, 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: - Mariner Outboard Engines 8hp 4 Stroke standard gearcase (2005 and later) - Mariner Outboard Engines 9.9hp 4 Stroke standard gearcase (2005 and later) Package List 1 x Water Pump Impeller