Description
Product Overview
The Supco SM0740 is a high‑quality condenser fan motor designed to replace the original Sub‑Zero 4200470 unit. Constructed from robust Supco‑branded materials, the motor delivers 1550 RPM at 120 V with a modest 2.3 W power draw. Its compact dimensions (1 × 1 × 1 in) and 1/2″ shaft length with a 1/4″ threaded diameter ensure a precise fit in a variety of refrigeration and air‑conditioning systems. The motor operates at 50/60 Hz, drawing .15 A, and meets or exceeds OEM specifications, guaranteeing reliable performance and longevity.
Usage
This fan motor is ideal for residential and light‑commercial refrigeration units, especially Sub‑Zero models that require a direct replacement. It excels in environments where consistent condenser cooling is critical, such as wine coolers, ice makers, and small commercial display cases. DIY enthusiasts and appliance technicians will appreciate the straightforward installation process, which requires no additional tools or modifications. 
Why Choose Us
Supco’s reputation for durable, OEM‑compliant parts backs the SM0740. Each motor undergoes rigorous testing to ensure exact fit and optimal performance, reducing the risk of premature failure. Our parts are backed by a no‑discontinue guarantee, providing peace of mind for long‑term service. Additionally, the motor’s low power consumption helps lower operating costs while maintaining effective heat dissipation.
Key Features
- Direct replacement for Sub‑Zero 4200470 condenser fan
- High‑speed 1550 RPM airflow for efficient cooling
- Compact 1 × 1 × 1 in design fits tight spaces
- Durable Supco construction meets OEM standards
- Easy DIY installation with standard 1/2″ shaft
FAQ
Is this motor compatible with all Sub‑Zero models?
The SM0740 is engineered as a direct replacement for Sub‑Zero part 4200470, which is used in many of their refrigeration lines. Verify your model number to ensure compatibility.
What voltage does the SM0740 require?
The motor operates on standard North American 120 V AC power and runs at 50/60 Hz.
Can I install the fan motor myself?
Yes, the SM0740 is designed for easy installation. No special tools are needed beyond a screwdriver and basic safety equipment.
What is the warranty on this product?
Supco provides a one‑year limited warranty covering defects in materials and workmanship.
Does the motor include any accessories?
The package contains the fan motor only; mounting hardware and wiring are typically retained from the original unit.




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