What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4324AHAA — 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 WPC4324AHAA — 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 grommet 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.

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Goodman

OEM Goodman Motor Mount Grommet for WPC4324AHAA — B1392143

Name: OEM Goodman Motor Mount Grommet for WPC4324AHAA — B1392143
Brand: Goodman
SKU: GOODMAN-1087
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-1087 Brand: Goodman

$6.95 $9.38

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

The Goodman B1392143 is a genuine OEM motor mount grommet for WPC4324AHAA air conditioning units. This small rubber isolator seats between the fan motor's mounting legs and the bracket, cushioning the motor and absorbing operating vibration. Worn, cracked, or missing grommets are a leading cause of the buzzing and rattling noises that develop as a unit ages, and they can transmit harmful vibration into the motor bearings.

Specifications

OEM Part Number: B1392143
Compatible Model: WPC4324AHAA
Brand: Goodman
Material: Molded EPDM-style rubber
Function: Motor vibration isolation / mount cushion
Sold individually — most motors use multiple grommets

OEM vs. Generic

The genuine OEM grommet matches the original durometer (rubber hardness) and bore size, so it grips the mounting stud correctly and damps vibration as designed. Universal grommets that are too soft or the wrong diameter slip out of position or fail to isolate, returning the noise within weeks.

Installation Difficulty

Easy (1/5). With power off, lift the motor leg, remove the old grommet, and press the new one into place. A couple of minutes per grommet, no tools required beyond a screwdriver to free the mount.

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 Grommet ...

$6.95

Frequently Asked Questions

Does this Motor Grommet fit my Goodman WPC4324AHAA — B1392143?

Yes. This is the factory-specified OEM motor grommet for the Goodman WPC4324AHAA — 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 grommet on my Goodman WPC4324AHAA — 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 grommet 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 grommet?

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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