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Trane | MOT21209 | Constant Torque Programmed ECM Motor | 1/3 HP | 230V

Trane | MOT21209 | Constant Torque Programmed ECM Motor | 1/3 HP | 230V

Low stock: 1 left

Regular price $455.00 USD
Regular price Sale price $455.00 USD
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High-Efficiency ECM Blower Solution

  • Precision Airflow: Programmed to deliver exact CFM requirements for Trane S-Series furnaces.

  • Energy Savings: ECM brushless design significantly lowers monthly utility costs during high-use seasons.

  • Quiet Start Technology: Features a soft-start ramp-up to eliminate the "bang" or "thud" often heard when standard motors engage.

  • Enhanced Reliability: Dual ball-bearing design offers superior heat dissipation and longevity over standard sleeve bearings.

  • Direct Replacement: No external programming or "Evergreen" style configuration required; ready for immediate installation.

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Specifications

Product Details

  • Brand: Trane / American Standard
  • Manufacturer: Regal Rexnord / Genteq
  • Part #: MOT21209
  • UPC/SKU: MOT21209
  • Shipping Weight: 11.4 lbs
  • Voltage: 208-230VAmps/Watts/
  • HP: 1/3 HP / 2.8 Amps
  • Ignition Type: N/A (Blower Component)
  • Bearing Type: Ball Bearing
  • Frame Size: 48 Frame

description

Trane MOT21209 Constant Torque Programmed ECM Motor

The MOT21209 is a genuine OEM programmed ECM (Electronically Commutated Motor) featuring Constant Torque technology designed specifically for Trane and American Standard HVAC systems. Unlike standard induction motors, this high-efficiency brushless DC motor is factory-preprogrammed to maintain consistent torque against varying static pressures, ensuring stable airflow across the furnace heat exchanger or air handler coil. This specific motor supports the high-efficiency S-Series and variable-speed transition models, providing precise airflow modulation without the energy loss associated with traditional PSC motors.

Key Features

  • OEM Programmed Part Number MOT21209: Factory-flashed with Trane-specific performance curves, ensuring the motor responds correctly to the integrated furnace control signals.                                                                                                 
  • Constant Torque Efficiency: Utilizes ECM technology to reduce energy consumption by up to 33% compared to standard motors while maintaining CFM integrity.Drop-In 48-Frame   
  • Geometry: Features the standard OEM 48-frame diameter and ball-bearing construction to resolve shaft-seizure and mechanical friction issues common in sleeve-bearing alternatives.                                                                                           
  • Direct Component Replacement: Replaces older X13 and Endura motor revisions, providing updated moisture-resistant potting on the control module to prevent premature circuit failure.

Product Details

  • Brand: Trane / American Standard
  • Manufacturer: Regal Rexnord / Genteq
  • Part #: MOT21209
  • UPC/SKU: MOT21209
  • Shipping Weight: 11.4 lbs
  • Voltage: 208-230VAmps/Watts/
  • HP: 1/3 HP / 2.8 Amps
  • Ignition Type: N/A (Blower Component)
  • Bearing Type: Ball Bearing
  • Frame Size: 48 Frame

🛠️ HVAC Depot Pro Tip

Take a Picture First: Before removing the 5-pin power plug and the 24V signal harness, document their orientation. ECM motors are sensitive to voltage spikes; always ensure the system power is completely discharged before plugging in the new module to avoid "arcing" the pins. During the diagnostic check, ensure the blower wheel is clean and balanced; a dirty wheel will cause an ECM motor to ramp up to higher RPMs, potentially shortening the lifespan of the new motor

Cross-Reference

  • Superseded Parts: MOT12301, MOT13854, MOT14272, MOT18654Legacy Numbers: D344654P01, X13, 5SME39SXL110
  • Drawing Numbers: 1012-833-21209

Model Compatibility

  • TAM Series (Suffixes: 4A0A24, 4A0A30, 7A0A24, 7A0A30)
  • GAM Series (Suffixes: 5B0A24, 5B0A30, 8B0A24)
  • S9V2 Series (Suffixes: B040U3S, B060U3S, B080U4S)
  • TEM Series (Suffixes: 4A0B24, 6A0B24, 6A0B30)

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

  • The item must be unused, uninstalled, and in its original condition.
  • The item must be returned in its original packaging.
  • Model numbers and serial numbers must match the original purchase records.
  • Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

  • Installed or used parts.
  • Products showing signs of installation, modification, or damage caused after delivery.
  • Items missing original packaging.
  • Sale or clearance items.
  • Special-order or custom-order products.
  • Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

  • Refunds will be issued to the original payment method.
  • Processing typically takes 7–14 business days after approval.
  • Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

  • Our shipping error,
  • A defective product,
  • A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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