{"product_id":"protech™-51-21853-11-genuine-oem-condenser-fan-motor-1-3-hp-208-230v-1075-rpm","title":"PROTECH™ 51-21853-11 Genuine OEM Condenser Fan Motor 1\/3 HP 208-230V 1075 RPM","description":"\u003ch1\u003ePROTECH™ 51-21853-11 Genuine OEM Condenser Fan Motor 1\/3 HP 208-230V 1075 RPM\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003ePROTECH™ 51-21853-11\u003c\/strong\u003e is a heavy-duty \u003cstrong\u003eGenuine OEM Outdoor Condenser Fan Motor\u003c\/strong\u003e specifically designed for \u003cstrong\u003eRheem, Ruud, and WeatherKing\u003c\/strong\u003e air conditioning and heat pump systems. As a core component of the outdoor unit, this motor drives the fan blade to pull air through the condenser coils, facilitating the critical heat rejection process that allows your HVAC system to provide cooling and heating comfort.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Performance:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eOperating at \u003cstrong\u003e208-230V\u003c\/strong\u003e, this \u003cstrong\u003e1\/3 HP\u003c\/strong\u003e motor features a standard \u003cstrong\u003e1075 RPM\u003c\/strong\u003e single-speed profile optimized for high-capacity heat exchange. Being a \u003cstrong\u003eGenuine OEM\u003c\/strong\u003e part, it is built with a Totally Enclosed Air-Over (TEAO) housing and high-grade ball bearings to survive the intense thermal stress and moisture exposure of outdoor environments. Unlike universal motors, the 51-21853-11 ensures a precision fit with the exact shaft length and mounting diameter required to eliminate cabinet vibration and premature bearing wear.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features and Function:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Airflow Management:\u003c\/strong\u003e The 1075 RPM speed is factory-matched to the static pressure of Rheem\/Ruud cabinets for maximum cooling efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine OEM Reliability \u0026amp; Fitment:\u003c\/strong\u003e Guaranteed to align with original factory mounting brackets and fan blade hubs without field modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Weatherproof Build:\u003c\/strong\u003e Features a \"Rain Shield\" design and permanently lubricated bearings to resist moisture, dust, and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect-Fit Plug-and-Play:\u003c\/strong\u003e Includes factory-correct lead lengths and electrical connectors for a fast, secure installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eProduct Details and Key Specifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51-21853-11 (Replaces 51-21853-01, 51-21853-81)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Rheem \/ Ruud (PROTECH™ Genuine OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Condenser Fan Motor (PSC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 208-230 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHP \/ RPM:\u003c\/strong\u003e 1\/3 HP @ 1075 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase \/ Hertz:\u003c\/strong\u003e Single-phase (1PH) \/ 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Clockwise (CW) \/ Lead End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 13.40 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e🛠️ HVAC Depot Pro Tip: The Lead Orientation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWhen installing the \u003cstrong\u003e51-21853-11\u003c\/strong\u003e, ensure the motor leads are pointed downward and have a small \"drip loop\" before they enter the electrical conduit. This prevents rainwater from traveling down the wires and into the motor housing. Additionally, always replace the \u003cstrong\u003e5 MFD or 7.5 MFD \/ 370V run capacitor\u003c\/strong\u003e (refer to the new motor nameplate for specific rating) to ensure the motor starts under the correct load and doesn't overheat during peak summer operation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCross-Reference \u0026amp; Compatibility:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 51-21853-11 is a direct OEM replacement for the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Numbers:\u003c\/strong\u003e 51-21853-11, 512185311, 51-21853-01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGE\/Genteq:\u003c\/strong\u003e 5KCP39FGN651S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFasco:\u003c\/strong\u003e D7909\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eExtensive Model Compatibility List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAMB Series:\u003c\/strong\u003e RAMB-036, RAMB-042, RAMB-048\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRAML Series:\u003c\/strong\u003e RAML-036, RAML-042, RAML-048\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRA13 Series:\u003c\/strong\u003e RA1336, RA1342, RA1348\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRA14 Series:\u003c\/strong\u003e RA1436, RA1442, RA1448\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClassic Series:\u003c\/strong\u003e 13AJM36, 13AJM42, 14AJM36, 14AJM42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeatherKing:\u003c\/strong\u003e WA13, WA14, WP14 Series (3 to 4 Ton Units)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rheem","offers":[{"title":"Default Title","offer_id":52251928461675,"sku":"0662766182323","price":561.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/51-21853-11.jpg?v=1768585632","url":"https:\/\/tophvacparts.com\/products\/protech%e2%84%a2-51-21853-11-genuine-oem-condenser-fan-motor-1-3-hp-208-230v-1075-rpm","provider":"HVAC Parts and Equipment Depot","version":"1.0","type":"link"}