What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WAHMS3743P4ACA — B1376863 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 WAHMS3743P4ACA — B1376863.

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 motor mount 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 Blower Motor Mount for WAHMS3743P4ACA — B1376863

Name: OEM Goodman Blower Motor Mount for WAHMS3743P4ACA — B1376863
Brand: Goodman
SKU: B1376863-GEN
Price: 4.95 USD
Availability: InStock

SKU: B1376863-GEN Brand: Goodman

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The Goodman B1376863 is a genuine OEM blower motor mount for the WAHMS3743P4ACA air handler. This bracket/band cradles the blower motor and isolates it from the housing, holding the motor in precise concentric alignment with the blower wheel while damping vibration. A worn or incorrect mount allows the motor to sag, throwing the wheel out of balance and producing rattles, bearing wear, and premature motor failure.

Specifications

Part Number: B1376863
Type: Blower motor mount / belly-band bracket
Application: Goodman / Amana air handlers, model WAHMS3743P4ACA
Function: Secures and aligns blower motor; reduces vibration
Build: OEM-formed steel with factory bolt pattern and isolation

OEM vs. Generic

Universal mounts often use the wrong band diameter or strap spacing, leaving the motor loose or off-center. The OEM B1376863 matches the exact motor diameter and housing bolt pattern of the WAHMS series, so the motor seats square the first time and stays quiet.

Installation

Difficulty: Easy to Moderate. Swapping the mount requires loosening the motor straps and re-aligning the motor in the housing — usually 20–40 minutes. Disconnect power first and confirm the wheel spins freely with proper clearance before re-energizing.

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 Blower Motor Mount f...

$4.95

Frequently Asked Questions

Does this Motor Mount fit my Goodman WAHMS3743P4ACA — B1376863?

Yes. This is the factory-specified OEM motor mount for the Goodman WAHMS3743P4ACA — B1376863. 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 mount on my Goodman WAHMS3743P4ACA — B1376863?

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 mount 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 motor mount?

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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