Reznor 45888 Motor

Secure consistent airflow for your industrial heating equipment with the Reznor 45888 Motor. This unit is a premium OEM replacement motor designed specifically for Reznor HVAC systems, providing a 1/8 HP output at a performance-tuned 1140 RPM. Operating on a standard 115V single-phase circuit with a 1.9 Amp draw, this motor utilizes a stud mount configuration for direct installation onto fan guards. It serves as the direct replacement for Reznor 55681, as well as obsolete models 319P423 and F42D72A13. Built for reliability in high-demand environments, the 45888 motor features Class A insulation and integrated thermal protection to prevent overheating during continuous operation cycles. This counterclockwise (CCW) rotation motor ensures your unit heater or ventilation system maintains factory-spec static pressure and CFM delivery without the risk of field-mod failures.

• Direct OEM Compatibility: Engineered as a drop-in replacement for Reznor 55681 and F42D72A13, eliminating the need for bracket modifications.
• Enhanced Thermal Safety: Equipped with internal automatic reset thermal overload protection to safeguard the windings against excessive heat.
• Standardized Electrical Specs: Matches factory 115V / 1.9 Amp requirements, ensuring the motor integrates seamlessly with existing control boards and wiring harnesses.
• Optimized Airflow: The 1140 RPM speed is calibrated to maintain the original heat exchanger cooling efficiency and prevent limit-switch tripping.
• Industrial Build Quality: Features a durable stud mount design and rugged housing built to withstand the vibrating environments of gas-fired unit heaters.

What models does the Reznor 45888 replace?
This motor is the certified direct replacement for part number 55681. It also replaces older manufacturer numbers including 319P423, F42D71A13, and F42D72A13.

Is this a permanent split capacitor (PSC) or shaded pole motor?
The 45888 is a 1/8 HP single-phase motor designed to match the specific torque and efficiency profiles required by Reznor fan-blade assemblies.

Does this motor include the mounting hardware?
It features built-in mounting studs for classic fan guard attachment, allowing you to reuse the existing nuts for a fast swap in the field.

This item is not eligible for free shipping.

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.