Air Conditioner Motor 115V 20455 Replacement for AO Smith, Century & Coleman

This air conditioner motor is a direct replacement option designed to help restore proper airflow and consistent cooling in compatible HVAC systems. The NBK-20455 motor is built for 115V single-phase applications and is commonly used in select AO Smith, Century, and Coleman units. If your existing motor is worn, noisy, or no longer running efficiently, this replacement part offers a straightforward way to bring your system back to normal operation.

It is designed for compatibility and ease of replacement, making it suitable for both HVAC technicians and experienced DIY users who want a reliable, direct-fit solution.

What This Product Is

The NBK-20455 is a 115V AC replacement motor designed for air conditioning systems that require dependable fan operation and steady airflow.

It replaces select OEM motors used in HVAC systems and helps support proper circulation through the unit.

This motor is manufactured under NBK Motors as an aftermarket replacement part intended for compatibility with several major HVAC brands.

Who This Is Best For

This air conditioner motor replacement is a good fit if you are:

• Replacing a failed or worn-out condenser or blower motor
• Experiencing weak airflow or inconsistent cooling
• Working on a system that requires a direct-fit 115V motor replacement
• An HVAC technician performing routine system repairs
• A homeowner familiar with basic HVAC component replacement

Key Features

• Helps restore proper airflow in compatible AC systems
• Supports stable, consistent fan operation
• Designed as a direct replacement for easier installation
• Built for standard residential and light commercial HVAC setups

Compatibility (Direct Replacement)

This motor is designed to replace select part numbers used by:

• AO SMITH ORV4538
• CENTURY 322P708
• COLEMAN 6757A313
• COLEMAN 6757B311
• COLEMAN K55HXJCP-2593
• COLEMAN N416CCW68A

Before ordering, always confirm your original motor’s part number and voltage requirements.

What to Compare Before Buying

When selecting an air conditioner motor replacement, make sure to check:

• Voltage match (115V required)
• RPM rating (1625 RPM)
• Motor phase (single-phase compatibility)
• Physical size and mounting fit
• Original part number cross-reference

A mismatch in even one specification can affect system performance or fit.

Installation & Next Steps

This motor is designed as a direct replacement for compatible systems, but proper installation is important for safe and reliable operation.

• Disconnect power before servicing any HVAC equipment
• Confirm wiring matches your original motor setup
• Ensure proper mounting alignment before securing
• Test system operation after installation

If you are unsure about compatibility or wiring, a qualified HVAC technician can help confirm fitment before installation.

Why Buy From Us

We focus on providing replacement HVAC components that are clearly described and easy to match to existing part numbers. Our goal is to help you find the right part without guesswork.

If you need help identifying compatibility, our team can assist with cross-referencing part numbers and specifications so you can order with confidence.

Frequently Asked Questions

What systems does this motor fit?

This motor is designed for select HVAC systems that use compatible 115V motors with the listed OEM cross-reference part numbers. Always verify your original part number before ordering.

Is this a direct replacement for AO Smith and Coleman motors?

Yes, it is designed to replace specific models used by AO Smith and Coleman, including listed part numbers.

Does this motor come with a warranty?

No, this model does not include a written warranty.

Can I install this myself?

It can be installed by experienced DIY users, but HVAC systems involve electrical components, so professional installation is recommended if you are not fully familiar with wiring.

How do I know if this is the correct replacement?

Check your existing motor’s part number, voltage, RPM, and physical specifications. Matching these details is the most reliable way to confirm compatibility.

What should I do before replacing my motor?

Always disconnect power to the unit and verify all specifications before installation to ensure safe replacement.

Helpful Internal Links

• Browse our HVAC Parts Catalog
• Contact Us for Help Matching Your Part Number
• See Replacement Parts by Brand: AO Smith, Century, Coleman & More

Ready to Replace Your Air Conditioner Motor?

If your system is showing signs of motor failure, this replacement part is designed to help restore proper airflow and cooling performance in compatible units.

Place your order now to get the correct air conditioner motor replacement part for your system.