What HP motor do I need for my Trane unit?

The correct replacement for Trane model OEM Trane Fan Motor — MOT18705 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Trane equipment which lists the model number OEM Trane Fan Motor — MOT18705.

My AC fan is not spinning. What part do I need?

A fan that does not spin, spins slowly, or makes grinding or squealing noises needs a new motor. Grinding means the bearings have failed. Squealing means the bearings are dry. No spin with a humming sound means the capacitor may be the issue. Check the motor capacitor before replacing the entire motor.

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Trane

OEM Trane Fan Motor — MOT18705

Name: OEM Trane Fan Motor — MOT18705
Brand: Trane
SKU: TRN-MOT18705
Price: 119.95 USD
Availability: InStock

SKU: TRN-MOT18705 Brand: Trane

$119.95 $169.95

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The Trane MOT18705 fan motor drives the blower or condenser fan that moves air across the coil in your Trane system. Symptoms of failure include no airflow, humming without spinning, overheating, or weak heating and cooling. This OEM motor is a direct factory replacement for correct fit, speed, and rated performance.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Trane Fan Motor — MOT18705

$119.95

Frequently Asked Questions

Does this Motor fit my Trane OEM Trane Fan Motor — MOT18705?

Yes. This is the factory-specified OEM motor for the Trane OEM Trane Fan Motor — MOT18705. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the motor on my Trane OEM Trane Fan Motor — MOT18705?

Difficulty: Medium-Hard (1–2 hrs)
Step 1: Turn off breaker. Step 2: Note motor specs: HP, RPM, voltage, rotation direction. Step 3: Remove old motor from mounting. Step 4: Transfer fan blade to new motor. Step 5: Mount new motor, reconnect wiring. Step 6: Restore power, verify rotation direction.

My AC fan isn’t spinning. What part do I need?

Fan not spinning, spinning slowly, or making grinding/squealing noises = motor failure. Grinding = bearings failed. Squealing = bearings dry. No spin + hum = check the motor capacitor first before replacing the entire motor.

Is this motor compatible with Bryant or Payne too?

Many Trane parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Trane motor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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OEM Trane Fan Motor — MOT18705

Shipping Information

Return Policy

Frequently Asked Questions