Lennox Condenser Fan Motor - 43W49 (100483-21) 1/5 HP, 208-230 -1Ph, 42 Frame, 1075 RPM
Lennox Condenser Fan Motor - 43W49 (100483-21) 1/5 HP, 208-230 -1Ph, 42 Frame, 1075 RPM
The Lennox 43W49 (100483-21) is a genuine OEM 1/5 HP PSC condenser fan motor designed for Lennox air conditioner and heat pump outdoor units. Rated for 208–230V single phase operation at 1075 RPM, this 42 frame motor features ball bearings, CCW rotation (from lead end), and requires a 5 MFD 370V capacitor. Engineered for reliable airflow and efficient heat rejection, it is a direct replacement for multiple legacy Lennox part numbers.
The Lennox 43W49 condenser fan motor (100483-21) is a genuine OEM replacement engineered specifically for Lennox air conditioning and heat pump outdoor condenser units. Designed to maintain proper airflow across the condenser coil, this motor plays a critical role in system heat rejection, head pressure control, and overall cooling efficiency.
Built on the Interlink YFK-150-6 platform, the Lennox 43W49 features a 1/5 HP permanent split capacitor (PSC) design that delivers dependable and energy-efficient operation in residential and light commercial HVAC systems. Operating at 1075 RPM on 208–230 VAC single phase power, this motor ensures consistent condenser fan performance under varying load conditions. Its 1.1 full load amp draw supports stable electrical performance while minimizing unnecessary strain on system components.
The motor utilizes high-quality ball bearings, offering improved durability, reduced operational noise, and longer service life compared to sleeve-bearing alternatives. This makes it especially suitable for outdoor condenser applications exposed to temperature swings, moisture, and continuous seasonal operation.
With CCW rotation from the lead end (CCWLE), a 42 frame size, and vertical stud mounting configuration, the 43W49 is designed for precise OEM fit and straightforward installation. The 1/2 inch diameter shaft with 1.8 inch shaft length provides proper blade positioning to maintain factory airflow specifications and system balance. When paired with the required 5 MFD 370 VAC run capacitor, the motor delivers smooth startup and reliable continuous performance.
Replacing a failing condenser fan motor with the correct OEM Lennox 43W49 helps prevent compressor overheating, high head pressure conditions, inefficient cooling, and potential system shutdown. By restoring correct airflow across the condenser coil, this motor supports optimal refrigerant condensing temperatures and protects overall HVAC system longevity.
This motor replaces multiple legacy Lennox part numbers, making it a direct solution for service technicians and contractors seeking an exact-match OEM condenser fan motor for Lennox outdoor units.
Technical Specifications
| Brand | Lennox | Catalog Number | 43W49 |
|---|---|---|---|
| Model Number | 100483-21 | Motor Type | PSC |
| Horsepower | 1/5 HP | Speed | 1075 RPM |
| Voltage | 208–230 VAC | Phase | 1 Phase |
| Frequency | 50/60 Hz | Amperage | 1.1A FLA |
| Frame Size | 42 | Rotation | CCWLE |
| Capacitor | 5 MFD 370 VAC | Bearing Type | Ball Bearing |
| Shaft Diameter | 1/2 Inch | Shaft Length | 1.8 Inch |
| Mounting Type | Stud | Mounting Position | Vertical |
| Product Diameter | 4.8 Inch | Product Width | 4.21 Inch |
| Gross Weight | 10.55 LB | Country of Origin | Mexico |
Restore reliable condenser airflow and protect your HVAC system with the genuine Lennox 43W49 condenser fan motor. Order today to ensure fast replacement, proper OEM fit, and long-term cooling performance.
| Package Quantity | 1 Item |
|---|---|
| Item Returns | This item can be returned |