What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4342AHAA — 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 WPC4342AHAA — 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 Grommet for WPC4342AHAA — B1392143

Name: OEM Goodman Motor Grommet for WPC4342AHAA — B1392143
Brand: Goodman
SKU: GOODMAN-1134
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-1134 Brand: Goodman

$6.95 $9.38

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Texas CMBL #19328542014

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Govt POs Accepted

The Goodman B1392143 is a genuine motor mount grommet (rubber vibration isolator) built as a direct replacement for the Goodman WPC4342AHAA air conditioner and compatible packaged units. The grommet cushions the fan motor where it bolts to the bracket or mounting band, absorbing vibration and preventing metal-to-metal noise. Dried, cracked, or missing grommets are a frequent cause of humming, rattling, and premature motor mount fatigue.

Specifications

OEM Part Number: B1392143
Brand: Goodman (OEM)
Fits Model: WPC4342AHAA and compatible units
Equipment Type: Air Conditioner
Material: Molded rubber
Function: Motor mount vibration isolator

OEM vs. Generic

This inexpensive OEM Goodman grommet is molded to the exact diameter and durometer needed to fit the factory mount and properly dampen vibration. Generic grommets may be too hard or the wrong size, transmitting noise or failing to seat correctly. Given the low cost, replacing all grommets as a set with genuine OEM parts is the smart choice.

Install Difficulty: Easy

Replacement takes only a few minutes per grommet. Disconnect power first. Loosen the motor mount hardware, slip out the worn grommet, press the new grommet into the bracket, and reseat the motor. Replace all grommets at once for balanced, vibration-free support.

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 Grommet for WP...

$6.95

Frequently Asked Questions

Does this Motor Grommet fit my Goodman WPC4342AHAA — B1392143?

Yes. This is the factory-specified OEM motor grommet for the Goodman WPC4342AHAA — 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 WPC4342AHAA — 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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