Overview Product Description 606661 Internal Cooling Fan for A.O. Smith series C48, K48, S48, P48 This is the internal plastic cooling fan blade for several models usually limited to max 2.5 HP This fits motors with 6203 Bearing on the Drive End 4.65" OD .665" ID Please verify bearing used on Drive End and your Shaft Dimension Note: the installation is critical, very tight fit, please feel free to call for assistance to avoid breakage during installation. Product Videos Custom Field Product Reviews