What HP motor do I need for my Goodman unit?

The correct replacement for Goodman model WAHMS1931P4ACA — 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 WAHMS1931P4ACA — 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 WAHMS1931P4ACA — 1439389S

Name: OEM Goodman 9 x 6 in Blower Housing for WAHMS1931P4ACA — 1439389S
Brand: Goodman
SKU: GOODMAN-2044
Price: 64.74 USD
Availability: InStock

SKU: GOODMAN-2044 Brand: Goodman

$64.74 $87.40

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Texas CMBL #19328542014

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The Goodman 1439389S is a genuine OEM 9 x 6 inch blower housing (scroll) that contains the blower wheel and directs airflow in Goodman air handlers such as the WAHMS1931P4ACA. A cracked, warped, or rattling housing causes air noise, reduced airflow, and wheel rub — replacing it with the factory part restores quiet, efficient air delivery.

Specifications

OEM Part Number: 1439389S
Type: Blower housing / scroll
Size: 9 x 6 in
Brand: Goodman (genuine OEM)
Equipment: Air Handler
Fits: WAHMS1931P4ACA

OEM vs. Generic

The OEM housing matches the exact 9 x 6 dimensions, mounting points, and wheel clearance of the original assembly. Generic housings often differ in cutoff position and bolt pattern, hurting airflow and causing wheel contact. The genuine Goodman part bolts in and keeps your blower performance to spec.

Installation Difficulty

Moderate to hard. Requires removing the blower assembly, transferring the motor and wheel, and re-setting wheel clearance and balance before reinstalling. Plan on 45–90 minutes. DIYers comfortable with blower service can manage it; otherwise use a licensed HVAC technician.

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 Hous...

$64.74

Frequently Asked Questions

Does this Blower Housing fit my Goodman WAHMS1931P4ACA — 1439389S?

Yes. This is the factory-specified OEM blower housing for the Goodman WAHMS1931P4ACA — 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 WAHMS1931P4ACA — 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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