What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WAHMS1931P4ABA — 1439389S 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 WAHMS1931P4ABA — 1439389S.

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 blower housing 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 9 x 6 in. Blower Housing for WAHMS1931P4ABA — 1439389S

Name: OEM Goodman 9 x 6 in. Blower Housing for WAHMS1931P4ABA — 1439389S
Brand: Goodman
SKU: GOODMAN-2038
Price: 64.74 USD
Availability: InStock

SKU: GOODMAN-2038 Brand: Goodman

$64.74 $87.40

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Texas CMBL #19328542014

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The Goodman 1439389S 9 x 6 inch Blower Housing is a genuine OEM scroll housing for the WAHMS1931P4ABA air handler. The housing encloses the blower wheel and directs conditioned air through the cabinet, and its precise scroll geometry is critical to achieving rated airflow (CFM) and quiet operation.

Cracked, warped, or corroded housings cause air leakage, rubbing noise, and reduced airflow that strains the motor. Replacing with the correct OEM housing restores designed performance and protects the blower assembly.

Specifications

Part type: Blower housing (scroll)
Nominal size: 9 x 6 inch
OEM part number: 1439389S
Brand: Goodman
Compatible model: WAHMS1931P4ABA (air handler)
Function: Houses blower wheel and channels airflow

OEM vs. Generic

The genuine Goodman OEM housing matches the factory cutoff plate, wheel clearance, and mounting points exactly. Generic housings often have slightly different scroll dimensions that reduce CFM, increase noise, and may not align with the existing motor mount. OEM ensures correct fit and airflow.

Installation Difficulty

Moderate to Advanced — Requires removing the blower assembly, transferring the motor and wheel, and verifying wheel clearance. Professional installation is recommended to confirm airflow and balance.

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 9 x 6 in. Blower Hou...

$64.74

Frequently Asked Questions

Does this Blower Housing fit my Goodman WAHMS1931P4ABA — 1439389S?

Yes. This is the factory-specified OEM blower housing for the Goodman WAHMS1931P4ABA — 1439389S. 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 blower housing on my Goodman WAHMS1931P4ABA — 1439389S?

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 blower housing 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 blower housing?

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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