Lennox 61W89 Fan Motor

The Lennox 61W89 is a high-performance OEM condenser fan motor designed for heavy-duty residential and light commercial condensing units. This 1/4 HP fan motor operates at a steady 1075 RPM, providing the targeted airflow required to maintain head pressure and system efficiency in demanding outdoor environments. As a direct 61W8901 replacement motor, it ensures a drop-in fit without the need for mounting modifications, utilizing a standard NEMA 48 frame (5.6-inch diameter) and a 1/2-inch by 2.25-inch flat shaft. This single-phase 208-230V motor features a Permanent Split Capacitor (PSC) design and robust ball bearings to manage radial and axial loads during continuous operation. For field technicians, this unit replaces legacy part numbers 100483-25, 100483-03, and 37L74, across Lennox, Armstrong, and Ducane equipment. To ensure long-term HVAC reliability, always pair this motor with a new 7.5 MFD / 370 VAC capacitor and verify that the fan blade is balanced to prevent premature bearing wear.

• Direct OEM Compatibility: Verified 1:1 replacement for Lennox 61W8901 and 100483-25, eliminating field fabrication.
• Enhanced Thermal Protection: Features internal thermal overload protection to prevent winding burnout during high-ambient conditions.
• Precision Performance: The 1075 RPM speed is calibrated for optimal heat transfer across the condenser coil.
• Durable Construction: Built with high-grade ball bearings and an insulation class B rating for continuous duty.

• What is the rotation direction for this motor? The Lennox 61W89 is a Counter-Clockwise Lead End (CCWLE) rotation motor. Always verify the rotation of your existing fan blade before installation.
• Can I use a different capacitor than what is specified? It is critical to use a 7.5 MFD / 370V (or 440V) capacitor. Using a mismatched rating can lead to high amperage, overheating, and motor failure.
• Does this motor replace older Interlink or Emerson models? Yes, this unit is the authorized replacement for various Interlink YFK-185-6 and Emerson K55HXGGJ-8196 models found in older Lennox-Aire and Allied Air units.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.