What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model GMT070-4A — B13400251S 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 Goodman equipment which lists the model number GMT070-4A — B13400251S.

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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Goodman

OEM Goodman 1/6 HP Condenser Fan Motor for GMT070-4A — B13400251S

Name: OEM Goodman 1/6 HP Condenser Fan Motor for GMT070-4A — B13400251S
Brand: Goodman
SKU: GOODMAN-12334
Price: 185.95 USD
Availability: InStock

SKU: GOODMAN-12334 Brand: Goodman

$185.95 $239.95

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The Goodman B13400251S Condenser Fan Motor is a genuine 1/6 HP OEM motor built to drive the condenser fan blade on the GMT070-4A package unit. It moves air across the condenser coil to reject heat during cooling. A motor that hums, runs hot, spins slowly, or won't start causes high head pressure, warm air, and compressor stress — replacing it with the factory-matched motor restores rated airflow and protects the rest of the system.

Specifications

OEM Part Number: B13400251S
Horsepower: 1/6 HP
Type: Condenser fan motor
Fits: Goodman GMT070-4A and related package units
Verify voltage, RPM, rotation, and capacitor rating against your unit rating plate before installing

OEM vs. Generic

The OEM B13400251S matches Goodman's specified HP, RPM, rotation, shaft, and mounting exactly, so it bolts in and pairs correctly with the existing capacitor and blade. Universal condenser motors can substitute but often require adapter brackets, a new capacitor, and rewiring, and any mismatch in RPM or rotation degrades airflow. For a straightforward, warranty-friendly repair, the OEM motor is the direct replacement.

Installation Difficulty

Advanced (4/5). This is a line-voltage repair. Disconnect and lock out power, discharge the capacitor, and label all wires. Remove the fan grille and blade, unbolt the old motor, transfer the blade at the correct shaft depth, mount the new motor, and reconnect per the wiring diagram and capacitor rating. Verify rotation and blade clearance before restoring power. Allow 45–60 minutes; if unsure, use a licensed HVAC technician.

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 Goodman 1/6 HP Condenser Fan...

$185.95

Frequently Asked Questions

Does this Condenser Fan Motor fit my Goodman GMT070-4A — B13400251S?

Yes. This is the factory-specified OEM condenser fan motor for the Goodman GMT070-4A — B13400251S. 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 condenser fan motor on my Goodman GMT070-4A — B13400251S?

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 condenser fan motor compatible with Bryant or Payne too?

Many Goodman 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 Goodman condenser fan 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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