What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4348AHBA — 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 WPC4348AHBA — 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.

Goodman

OEM Goodman Motor Grommet for WPC4348AHBA — B1392143

Name: OEM Goodman Motor Grommet for WPC4348AHBA — B1392143
Brand: Goodman
SKU: B1392143-GEN
Price: 1.95 USD
Availability: InStock

SKU: B1392143-GEN Brand: Goodman

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Goodman B1392143 Motor Mount Grommet

The Goodman B1392143 is a genuine OEM rubber motor mounting grommet for WPC4348AHBA air conditioning units. Though small and inexpensive, the grommet plays a critical role: it cushions the motor against its mounting bracket, isolating vibration so the motor runs quietly and its bearings aren't stressed by metal-to-metal contact. Over time, rubber grommets dry out, crack, and crumble — leading to a buzzing or humming noise, loose motor fitment, and accelerated wear.

Specifications

OEM Part Number: B1392143
Brand: Goodman
Fits Model: WPC4348AHBA
Material: Vibration-dampening molded rubber
Function: Blower/fan motor mount isolation

OEM vs. Generic

The genuine Goodman grommet is molded to the exact inner and outer diameter required by the motor mount, so it seats firmly and absorbs vibration as designed. Generic grommets that are slightly oversized or undersized either won't seat or fail to dampen properly. At this price point, OEM is the obvious choice — it's the cheapest insurance you can buy for your blower motor.

Installation Difficulty

Very Easy (1 of 5). Replace all grommets as a set when one fails. Loosen the motor mount band, press out the old grommets, push the new ones into place, and re-secure. Takes only a few minutes. Disconnect power before servicing.

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...

$1.95

Frequently Asked Questions

Does this Motor Grommet fit my Goodman WPC4348AHBA — B1392143?

Yes. This is the factory-specified OEM motor grommet for the Goodman WPC4348AHBA — 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 WPC4348AHBA — 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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