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GE 3587 Replacement Motor: The Complete Guide to Finding the Right HVAC Blower Motor





GE 3587 Replacement Motor

If your HVAC system’s blower motor has started making unusual noises, running inefficiently, or failing to start altogether, you may be in the market for a GE 3587 replacement motor. The GE 3587 is one of the most widely used direct-drive furnace blower motors in residential and light commercial HVAC systems. Finding a high-quality replacement that matches the original specifications is essential for restoring your system's performance and efficiency.

In this comprehensive guide, we’ll cover everything you need to know about the GE 3587 motor — from its specifications and common applications to why Trustec replacement motors are an excellent choice for your HVAC needs.

What Is the GE 3587 Motor?

The GE 3587 (also referred to as Genteq 3587) is a 1/2 horsepower, 3-speed, permanent split capacitor (PSC) direct-drive blower motor. It was originally manufactured by General Electric and later by Genteq (a brand of Regal Rexnord). This motor is designed for continuous air-over applications, making it ideal for furnace blowers, air handlers, and central air conditioning units.

The GE 3587 is known for its reliability, reversible rotation, and thermal overload protection, which helps prevent damage from overheating. It has been a staple in the HVAC industry for decades, and many older systems still rely on this workhorse motor.

Detailed Specifications of the GE 3587 Motor

Before purchasing a replacement, it’s crucial to understand the exact specifications of the original GE 3587 motor. Here are the key technical details:



Specification Detail
Horsepower 1/2 HP (0.37 kW)
Voltage 115 Volts, Single Phase
Frequency 60 Hz
Speed 1075 RPM (3-speed: High, Medium, Low)
Frame Size 48 Frame
Diameter 5-1/2" to 5-5/8"
Enclosure Open Air Over (OAO/OPAO)
Insulation Class Class B, 40°C Ambient
Thermal Protection Automatic Thermal Overload
Capacitor 5 MFD – 370 Volts (not included with motor)
Shaft 1/2" diameter x 4" extension with flat
Bearings Sleeve bearings
Rotation Reversible (CCW/CW)
Mounting Resilient rings (2RR base) with extended clamp bolts
Weight Approximately 16 lbs

The motor features 26" wire leads for easy connection and is designed for resilient ring mounting, which helps reduce vibration and noise during operation.

Why Would You Need a GE 3587 Replacement Motor?

Like all electric motors, the GE 3587 has a finite lifespan. Several signs indicate it may be time for a replacement:

Unusual noises – Grinding, squealing, or rattling sounds often indicate worn bearings or internal damage.

Failure to start – If the motor hums but doesn't spin, or doesn't respond at all, the motor may have failed.

Inconsistent airflow – A failing motor may run at reduced speed, leading to poor heating or cooling performance.

Frequent tripping – If the motor causes the circuit breaker to trip, it may have an internal short.

Overheating – Excessive heat from the motor housing suggests bearing failure or electrical issues.

When any of these symptoms appear, replacing the motor promptly can prevent further damage to your HVAC system and restore comfortable indoor temperatures.

Trustec: A Premium Choice for GE 3587 Replacement Motors

When searching for a GE 3587 replacement motorTrustec stands out as a brand that delivers reliability, performance, and value. Trustec replacement motors are engineered to meet or exceed OEM specifications, ensuring a perfect fit and seamless operation.

Here’s why Trustec should be your go-to choice:

OEM-Grade Quality

Trustec motors are built to the same rigorous standards as original equipment manufacturer (OEM) motors. The Trustec CTM5-587 model is a direct replacement for the GE 3587, featuring identical specifications: 1/2 HP, 115V, 1075 RPM, 3-speed operation, and a 48-frame design. This means you get the same performance and reliability you’d expect from the original motor.

Extensive Cross-Reference Compatibility

The Trustec CTM5-587 is cross-referenced with a wide range of other popular motor models, making it a versatile replacement option. It replaces:

  • GE/Genteq 3587, 5KCP39PGN655S, 5KCP39PGN665T

  • A.O. Smith DL1056, F48AD25A01

  • Fasco D701

  • Emerson 1865

  • Marathon X004

  • Economaster EM3587

  • Rotom R43587, DD-3587

  • Universal Electric 531

This extensive compatibility means that whether you're replacing a GE 3587 or any of these equivalent models, Trustec has you covered.

Built-in Capacitor and Thermal Protection

Many Trustec replacement motors come with the required capacitor included or specified, simplifying the installation process. Additionally, Trustec motors feature automatic thermal overload protection, safeguarding the motor from damage due to overheating.

Trusted by HVAC Professionals

Trustec has earned a reputation among HVAC technicians for producing durable, high-performance replacement motors. The brand is featured in cross-reference charts alongside industry leaders like Century, A.O. Smith, Fasco, and Genteq, demonstrating its standing in the HVAC community.

Installation Tips for Your GE 3587 Replacement Motor

Installing a replacement blower motor requires careful attention to detail. Here are some key considerations:

1. Verify Compatibility – Before purchasing, confirm that the replacement motor matches your original in horsepower, voltage, RPM, frame size, shaft diameter, and mounting type.

2. Check the Capacitor – The GE 3587 requires a 5 MFD 370V capacitor. Ensure your new motor either includes one or that you have a compatible capacitor on hand.

3. Wiring – Always refer to the wiring diagram printed on the motor. The Trustec CTM5-587 features color-coded leads for easy connection to high, medium, and low speed terminals.

4. Mounting – The motor uses resilient ring mounting with extended clamp bolts. Ensure the mounting rings are in good condition and properly positioned.

5. Rotation – The motor is reversible. If the airflow direction is incorrect, simply reverse the appropriate wiring connections.

6. Safety First – Always disconnect power to the HVAC system before beginning any installation work.

Common Questions About GE 3587 Replacement Motors

Q: Is the GE 3587 the same as Genteq 3587?

A: Yes. Genteq is the brand that succeeded GE in manufacturing these motors. The Genteq 3587 is the direct equivalent.

Q: What capacitor does the GE 3587 use?

A: The motor requires a 5 MFD 370V capacitor. Note that the capacitor is typically not included with the motor and must be purchased separately.

Q: Can I use a Trustec motor to replace my GE 3587?

A: Absolutely. The Trustec CTM5-587 is specifically designed as a direct replacement for the GE 3587 and numerous other equivalent models.

Q: How long does a replacement blower motor last?

A: With proper installation and maintenance, a quality replacement motor like Trustec can last 10-15 years or more.

Q: Is the GE 3587 motor reversible?

A: Yes, the rotation is reversible by swapping two wires. This makes the motor adaptable to different system configurations.

Conclusion

Finding the right GE 3587 replacement motor doesn't have to be complicated. By understanding the original motor's specifications and knowing what to look for in a replacement, you can make an informed decision that restores your HVAC system's performance.

Trustec offers a premium replacement solution with the CTM5-587 — a motor that matches the GE 3587 in every critical specification while providing the durability and reliability that HVAC professionals trust. With its extensive cross-reference compatibility, built-in thermal protection, and OEM-grade construction, Trustec is an excellent choice for anyone seeking a dependable GE 3587 replacement motor.

Whether you're a homeowner tackling a DIY repair or an HVAC technician servicing a client's system, choosing a quality replacement motor ensures long-lasting, efficient operation. Don't settle for inferior