What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WAHMV4260P4ACA — B13400704ABS 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 WAHMV4260P4ACA — B13400704ABS.

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.

Is this blower motor compatible with Bryant or Payne systems too?

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

Goodman

OEM Goodman 3/4 HP VS Blower Motor for WAHMV4260P4ACA — B13400704ABS

Name: OEM Goodman 3/4 HP VS Blower Motor for WAHMV4260P4ACA — B13400704ABS
Brand: Goodman
SKU: B13400704ABS-GEN
Price: 1205.95 USD
Availability: InStock

SKU: B13400704ABS-GEN Brand: Goodman

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Goodman B13400704ABS 3/4 HP Variable Speed Blower Motor

The B13400704ABS is a genuine OEM Goodman 3/4 HP variable speed ECM blower motor engineered for the WAHMV4260P4ACA air handler and compatible Goodman/Amana variable-speed air handling units. As the heart of your air handler's airflow system, this electronically commutated motor delivers quiet, energy-efficient, modulating airflow that ramps smoothly to match heating and cooling demand — far more efficient than a standard PSC motor.

Specifications

Horsepower: 3/4 HP
Motor type: Variable Speed ECM (electronically commutated)
Application: Air handler blower
OEM Part Number: B13400704ABS
Fits Model: WAHMV4260P4ACA
Brand: Goodman / Amana

OEM vs. Generic

This is a factory OEM motor programmed to match Goodman's control board and airflow tables exactly — meaning correct CFM staging out of the box with no field reprogramming. Universal/generic ECM replacements are cheaper but require a separate module, manual airflow setup, and often won't deliver the same dehumidification performance. For a variable-speed system, OEM is strongly recommended.

Installation Difficulty

Hard — high-voltage ECM motor with motor-mount and control connections. Professional HVAC installation recommended. Always disconnect power and discharge the system before service.

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 3/4 HP VS Blower Mot...

$1,205.95

Frequently Asked Questions

Does this Blower Motor fit my Goodman WAHMV4260P4ACA — B13400704ABS?

Yes. This is the factory-specified OEM blower motor for the Goodman WAHMV4260P4ACA — B13400704ABS. 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 blower motor on my Goodman WAHMV4260P4ACA — B13400704ABS?

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 blower 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 blower 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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