What are the specs for this Drain Pan?

The correct replacement for Goodman model WAHME3137P4AEA — B1756020L 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 WAHME3137P4AEA — B1756020L.

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 23x20 Vertical Drain Pan for WAHME3137P4AEA — B1756020L

Name: OEM Goodman 23x20 Vertical Drain Pan for WAHME3137P4AEA — B1756020L
Brand: Goodman
SKU: B1756020L-GEN
Price: 30.95 USD
Availability: InStock

SKU: B1756020L-GEN Brand: Goodman

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The genuine Goodman B1756020L Vertical Drain Pan measures 23 x 20 inches OD and is the factory condensate pan for the WAHME3137P4AEA air handler in vertical (upflow/downflow) installations. It captures condensate from the evaporator coil and channels it to the drain line, protecting the cabinet and surrounding structure from water damage.

Specifications

OEM Part Number: B1756020L
Dimensions: 23 in x 20 in (outside diameter)
Orientation: Vertical (upflow/downflow)
Component: Condensate drain pan
Fits Model: WAHME3137P4AEA
Brand: Goodman (genuine OEM)

OEM vs. Generic

The OEM B1756020L is molded to the exact coil footprint and drain-port location, so it seats flush and drains completely. Generic pans often differ in slope or outlet position, leaving standing water that breeds mold and corrosion. The OEM pan guarantees correct drainage geometry.

Installation Difficulty

Moderate (3/5) — Requires removing the coil to access and swap the pan. Power down, pull the coil, replace the pan with a fresh gasket, and reconnect the drain line. Set aside 45–60 minutes and check for level drainage after install.

Replacing a cracked or rusted pan is essential preventive maintenance against costly water-damage claims.

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 23x20 Vertical Drain...

$30.95

Frequently Asked Questions

Does this Drain Pan fit my Goodman WAHME3137P4AEA — B1756020L?

Yes. This is the factory-specified OEM drain pan for the Goodman WAHME3137P4AEA — B1756020L. 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 WAHME3137P4AEA — B1756020L?

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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