Home » Air Conditioner Motor 115V – Replaces AO Smith ORV4538 – NBK-20455
Ao Smith

Air Conditioner Motor 115V – Replaces AO Smith ORV4538 – NBK-20455

Special order item - may require extra time to fulfill and ship. Special order parts are non-returnable.

In stock
SKU: SO-20455
$188.25
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NBK-20455 – Air Conditioner Motor 115V – NBK

The NBK-20455 Air Conditioner Motor is a dependable OEM-equivalent replacement designed for RV air conditioning applications. Operating on 115V power, this motor delivers reliable airflow and consistent cooling performance. It is a direct replacement for the widely used AO Smith ORV4538 motor and multiple compatible Coleman and Century air conditioner motor models.

Built to meet or exceed OEM specifications, the NBK-20455 provides a precise drop-in fit, making it an ideal solution for RV owners and service technicians maintaining rooftop AC systems.

Key Features

  • OEM-Compatible Replacement: Direct replacement for AO Smith ORV4538 air conditioner motor
  • Reliable Cooling Performance: Designed to support consistent airflow in RV AC units
  • Durable Construction: Built for continuous-duty operation in RV environments
  • Direct-Fit Design: Matches OEM mounting and electrical specifications for easy installation

Specifications

  • SKU: 20455
  • UPC: 810069181387
  • Category: AC Motor / RV Parts
  • OEM Brand: AO Smith
  • Voltage: 115V
  • Application: RV air conditioner motor

Equivalent To

  • AO Smith: ORV4538
  • Century: 322P708
  • Coleman: 6757A313, 6757B311, K55HXJCP-2593, N416CCW68A

Why Choose the NBK-20455?

The NBK-20455 is a trusted replacement motor for RV air conditioning systems. With OEM-level compatibility and durable construction, it helps restore proper airflow, improve cooling efficiency, and extend the life of rooftop AC equipment.

Installation Tips

  • Confirm voltage and mounting specifications match the original motor before installation.
  • Disconnect RV shore power and battery power before servicing AC equipment.
  • Inspect wiring connections and replace any worn components as needed.
  • Consider replacing the run capacitor when installing a new AC motor.

Pairs Well With

  • Run Capacitors: Support proper motor startup and performance
  • Fan Blades & Wheels: Improve airflow and reduce vibration
  • Motor Mounting Hardware: Ensure secure installation
  • RV AC Electrical Components: Relays, switches, and wiring accessories