Goodman Blower Motor B1340020S

Goodman B1340020S Furnace Blower Motor Replacement

Maintain consistent airflow and reliable heating performance with the Goodman B1340020S Blower Motor. This genuine OEM-specification part is a high-torque, multi-speed motor designed to drive the internal blower wheel in residential gas furnaces and air handlers, ensuring efficient air distribution throughout your home.

Available now at Shorty’s HVAC Supplies—your trusted source for authentic Goodman components with fast shipping across the continental United States.

Product Overview

The B1340020S is a 1/2 HP Permanent Split Capacitor (PSC) motor manufactured by GE (Model 5KCP39KGT785S) for 115-120V applications. Featuring three distinct speed taps, this motor allows for precise airflow calibration to meet the specific CFM requirements of your furnace. It serves as the factory-authorized replacement for several legacy Goodman, Amana, and Armstrong motor configurations.

Technical Specifications

Compatibility and Cross-Reference

This blower motor is the factory-certified replacement for the following part numbers and manufacturer configurations:

• Direct Replacement for: B1340020S, B1340020.
• Manufacturer Model: 5KCP39KGT785S.
• Fits Brands: Goodman, Amana, and Armstrong.
• Common Applications: Used in a wide variety of 120V residential gas furnaces and modular air handlers.

Symptoms of a Failing Blower Motor

When your blower motor begins to fail, it can lead to frozen AC coils in the summer or furnace high-limit tripping in the winter. Watch for:

• Inadequate Airflow: If you hear the motor running but very little air is coming from the registers, the motor may be struggling to reach its rated 1075 RPM.
• The "Humming" Failure: If the motor hums but refuses to spin the blower wheel, it likely has a failed run capacitor or seized internal bearings.
• Screeching or Grinding: Loud mechanical noises are a clear indicator that the internal bearings have worn out and require immediate replacement.
• Thermal Overload: If the motor runs for a few minutes and then shuts off, it is likely overheating due to internal friction or electrical wear.

Installation and Safety Note

This motor requires a 10 MFD / 370 VAC run capacitor for proper operation. It is a critical industry practice to replace the capacitor whenever a new motor is installed to ensure the motor reaches its rated torque and maximum lifespan. Always verify that the speed tap wires are seated correctly on the control board to provide the proper CFM for both heating and cooling cycles. Disconnect all power to the furnace before beginning the replacement.

Shipping Information

• Continental US: Shipping rates apply to all orders within the lower 48 states.
• Fast Fulfillment: We understand that a failed blower motor is an emergency; we prioritize same-day processing for in-stock orders to restore your home comfort quickly.
• Genuine Quality: We stock only original Goodman parts to ensure the shaft diameter, mounting pattern, and electrical compatibility match your original equipment exactly.

Order your genuine Goodman B1340020S blower motor today from Shorty’s HVAC Supplies and restore your system's performance.