What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4336AMAA — B1392143 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 WPC4336AMAA — B1392143.

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 Grommet for WPC4336AMAA — B1392143

Name: OEM Goodman Blower Motor Mount Grommet for WPC4336AMAA — B1392143
Brand: Goodman
SKU: B1392143-GEN
Price: 1.95 USD
Availability: InStock

SKU: B1392143-GEN Brand: Goodman

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The Goodman B1392143 is a genuine OEM motor mounting grommet designed for the WPC4336AMAA packaged air conditioner. This small rubber isolator cushions the blower motor against its mounting bracket, absorbing vibration and dampening operating noise. Worn, cracked, or missing grommets cause rattling, excess vibration, and premature motor and bracket wear — a quick, inexpensive replacement that protects far more expensive components.

Specifications

Type: Motor mounting grommet / vibration isolator
Material: Molded rubber
Application: Goodman WPC4336AMAA packaged air conditioner
Part number: B1392143 (OEM)
Sold individually — check your unit for the quantity required

OEM vs. Generic

The OEM grommet is molded to the precise diameter and durometer the Goodman bracket requires, ensuring a snug fit and correct vibration damping. Generic grommets that are too soft or the wrong size allow motor movement and noise, accelerating wear. For correct fit and isolation, the OEM part is recommended.

Installation Difficulty

Easy. The grommet slides into the motor mounting bracket and is one of the simplest HVAC repairs. Disconnect power before servicing. Many technicians replace all grommets as a set whenever the motor is removed.

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 G...

$1.95

Frequently Asked Questions

Does this Motor Mount fit my Goodman WPC4336AMAA — B1392143?

Yes. This is the factory-specified OEM motor mount for the Goodman WPC4336AMAA — B1392143. 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 WPC4336AMAA — B1392143?

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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