What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WPC4336AHAB — 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 WPC4336AHAB — 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.

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Goodman

OEM Goodman Motor Mount Grommet for WPC4336AHAB — B1392143

Name: OEM Goodman Motor Mount Grommet for WPC4336AHAB — B1392143
Brand: Goodman
SKU: GOODMAN-1121
Price: 6.95 USD
Availability: InStock

SKU: GOODMAN-1121 Brand: Goodman

$6.95 $9.38

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Goodman B1392143 Motor Mount Grommet

The genuine OEM Goodman B1392143 motor grommet is a small but essential rubber isolator used in the fan motor mounting system of the WPC4336AHAB and compatible Goodman/Amana air conditioners. These grommets cushion the motor against the mounting bracket, absorbing vibration and dramatically reducing operating noise. Cracked, hardened, or missing grommets allow metal-to-metal contact that causes rattling, accelerated wear, and loosened hardware.

Specifications

Part Number: B1392143
Type: Rubber vibration-isolation grommet
Function: Fan motor mount cushion
Fits Model: WPC4336AHAB
Material: Molded EPDM rubber
Brand: Goodman (OEM)

OEM vs. Generic

The genuine OEM grommet is molded to the exact inner/outer diameter and durometer (rubber hardness) of your mount, so it seats securely and isolates vibration correctly. Generic grommets that are slightly off-size can fall out, compress unevenly, or fail to dampen vibration. At this price, OEM is the obvious choice — replace all grommets as a set for best results.

Installation Difficulty

Easy (1/5). Slips into the motor mounting bracket by hand once the motor is supported. No special tools required. We recommend replacing all grommets at the same time.

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 Mount Grommet fit my Goodman WPC4336AHAB — B1392143?

Yes. This is the factory-specified OEM motor mount grommet for the Goodman WPC4336AHAB — 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 grommet on my Goodman WPC4336AHAB — 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 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 mount 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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