What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4342AHAB — 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 WPC4342AHAB — 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 Mounting Grommet for WPC4342AHAB — B1392143

Name: OEM Goodman Motor Mounting Grommet for WPC4342AHAB — B1392143
Brand: Goodman
SKU: GOODMAN-1140
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-1140 Brand: Goodman

$6.95 $9.38

OEM Guaranteed

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30-Day Returns

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman B1392143 Motor Mounting Grommet is a genuine OEM rubber isolator engineered for the WPC4342AHAB air conditioner and other compatible Goodman/Amana packaged units. This small but critical component cushions the fan motor against its mounting bracket, absorbing vibration and dramatically reducing operating noise while protecting the motor and frame from premature metal fatigue.

Over years of thermal cycling and weather exposure, original grommets dry out, crack, and harden — allowing the motor to rattle, hum, or shift out of alignment. Replacing worn grommets restores quiet, stable operation and prevents costly downstream motor damage.

Specifications

Genuine Goodman OEM part number: B1392143
Component type: Fan motor mounting grommet / vibration isolator
Material: Heat- and weather-resistant EPDM rubber
Fits model: WPC4342AHAB (and compatible Goodman/Amana units)
Sold individually — most motors use 3 to 4 grommets

OEM vs. Generic

This is a factory-original Goodman grommet, molded to the exact durometer and dimensions specified by the manufacturer. Generic universal grommets often differ in bore size or hardness, which can transmit excess vibration or fail to seat correctly. For a guaranteed fit and OEM-grade longevity, the original part is the safe choice.

Installation Difficulty

Easy (DIY-friendly). No special tools required — simply remove the motor mounting hardware, slide out the old grommets, and press the new ones into place. Always disconnect power before servicing. Estimated time: 10–15 minutes per motor.

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 Mounting Gromm...

$6.95

Frequently Asked Questions

Does this Motor Grommet fit my Goodman WPC4342AHAB — B1392143?

Yes. This is the factory-specified OEM motor grommet for the Goodman WPC4342AHAB — 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 WPC4342AHAB — 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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