What are the specs for this Drain Pan?

The correct replacement for Goodman model WAHMS3743P4ABA — B1756028L 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 WAHMS3743P4ABA — B1756028L.

What symptoms indicate I need a new drain pan?

Common symptoms that indicate you need a new drain pan include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

Is this drain pan 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 Horizontal Drain Pan for WAHMS3743P4ABA — B1756028L

Name: OEM Goodman Horizontal Drain Pan for WAHMS3743P4ABA — B1756028L
Brand: Goodman
SKU: B1756028L-GEN
Price: 62.95 USD
Availability: InStock

SKU: B1756028L-GEN Brand: Goodman

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Texas CMBL #19328542014

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The Goodman B1756028L Horizontal Drain Pan is a genuine OEM replacement component engineered to fit the WAHMS3743P4ABA horizontal air handler. The drain pan sits beneath the evaporator coil and channels condensate away from the cabinet, preventing water damage, rust, and microbial growth inside the unit. A cracked, warped, or clogged pan is one of the most common causes of ceiling leaks and water-overflow shutdowns, so installing an exact-fit OEM pan restores proper drainage and protects the surrounding structure.

Specifications

Part Number: B1756028L
Type: Horizontal condensate drain pan
Fits Model: WAHMS3743P4ABA air handler
Material: Corrosion-resistant molded composite
Orientation: Horizontal applications
Brand: Goodman (OEM)

OEM vs. Generic

The genuine Goodman OEM pan is molded to the precise contour, slope, and mounting points of the WAHMS3743P4ABA cabinet, ensuring leak-free drainage and a drop-in fit. Generic universal pans often require trimming, may not seat against the coil correctly, and can leave standing water that promotes algae and overflow. For a reliable, warranty-safe repair, OEM is the recommended choice.

Installation Difficulty

Moderate. Requires removing the coil access panel and sliding out the existing pan. Plan 45–60 minutes; basic hand tools and a shop vac for residual water are recommended. Professional installation advised if the coil must be lifted.

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 Horizontal Drain Pan...

$62.95

Frequently Asked Questions

Does this Drain Pan fit my Goodman WAHMS3743P4ABA — B1756028L?

Yes. This is the factory-specified OEM drain pan for the Goodman WAHMS3743P4ABA — B1756028L. 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 drain pan on my Goodman WAHMS3743P4ABA — B1756028L?

Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.

What symptoms mean I need a new drain pan?

Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.

Is this drain pan 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 drain pan?

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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