What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WAHMS3642P4ABA — B1376853 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 WAHMS3642P4ABA — B1376853.

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 Motor Mount Arm for WAHMS3642P4ABA — B1376853

Name: OEM Goodman Motor Mount Arm for WAHMS3642P4ABA — B1376853
Brand: Goodman
SKU: B1376853-GEN
Price: 3.95 USD
Availability: InStock

SKU: B1376853-GEN Brand: Goodman

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Texas CMBL #19328542014

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The Goodman B1376853 Motor Mount Arm is a genuine OEM bracket that secures the blower motor within the housing of WAHMS3642P4ABA air handlers. It holds the motor in precise alignment with the blower wheel and dampens operating vibration, keeping the assembly quiet and protecting the motor bearings from premature wear.

Stamped to the factory profile, the arm bolts to the blower housing and clamps the motor at the correct height and angle so the wheel runs true within the scroll. A bent, cracked, or rusted mount arm leads to wheel rub, noise, and motor misalignment — replacing it with the exact OEM arm restores proper geometry and smooth operation.

Specifications

Component: Blower motor mount arm / bracket
Fits: Goodman WAHMS3642P4ABA air handler
Material: Stamped/coated steel
Function: Secures and aligns blower motor, dampens vibration
OEM Part Number: B1376853

OEM vs. Generic

The OEM arm matches the factory bolt pattern and motor clamp geometry for correct alignment. A Generic or universal bracket often requires drilling or shimming and can leave the wheel off-center, causing noise and accelerated bearing wear.

Installation Difficulty

Moderate (3/5) — Requires removing the blower assembly to access the motor band and mount bolts. Transfer the motor to the new arm, preserve the original clamp position, and confirm the wheel spins without housing contact before powering up.

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 Motor Mount Arm for ...

$3.95

Frequently Asked Questions

Does this Motor Mount fit my Goodman WAHMS3642P4ABA — B1376853?

Yes. This is the factory-specified OEM motor mount for the Goodman WAHMS3642P4ABA — B1376853. 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 WAHMS3642P4ABA — B1376853?

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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