6593 Oberdorfer Impeller for N202M Series Bronze Impeller Pumps


The Oberdorfer 6593 Impeller is a flexible neoprene rubber impeller designed for efficient raw water and engine cooling on marine engines. This durable replacement part is engineered to the precise specifications of Oberdorfer's bronze impeller pumps, ensuring optimal performance and reliable flow.


Compatible Applications

  • Fits Oberdorfer raw water pumps, including all N202M series models.

  • Replaces impellers on pumps used with Onan generators, including MDKC 3.5 KW, MDKC 4.0 KW, MDKD 6.5 KW, and MDKD 8.0 KW models.

  • Also replaces impellers for pumps used on some Universal and Kubota engines.

  • Replaces OEM part numbers: 6953, OB 6593, Onan 132-0316, 8514, B6593, and Universal 295628.


Key Features

  • OEM Precision Fit – Matches original factory specifications for correct performance and alignment.

  • Durable Materials – Made from neoprene rubber, designed for superior resistance to fresh and saltwater, as well as minor oil and chemical exposure.

  • 6-Blade Design – Provides powerful and consistent water flow for efficient cooling.

  • Easy Replacement – The impeller can be replaced with a single flat drive for straightforward installation.

  • Material: Neoprene Rubber

  • Number of Blades: 6

  • Shaft Type: Single Flat Drive ("D" hole)

  • Impeller Diameter: 51 mm (2 inches)

  • Impeller Width: 22 mm (7/8 inches)

  • Shaft Diameter: 12.7 mm (1/2 inches)


Designed for reliability and longevity, the 6593 Oberdorfer Impeller is an essential component for marine engine maintenance. Regularly replacing this impeller ensures the critical cooling system operates at peak efficiency, protecting your engine from overheating and costly damage.



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