OEM Goodman Horizontal Drain Pan for WAHME3137P4AEA — B1756028L

The genuine Goodman B1756028L Horizontal Drain Pan is the factory condensate pan engineered for the WAHME3137P4AEA air handler installed in a horizontal (attic or crawlspace) configuration. It collects coil condensate and directs it to the drain outlet, safeguarding the equipment and the structure below from water intrusion.

Specifications

• OEM Part Number: B1756028L
• Orientation: Horizontal (attic/crawlspace)
• Component: Condensate drain pan
• Equipment: Air Handler
• Fits Model: WAHME3137P4AEA
• Brand: Goodman (genuine OEM)

OEM vs. Generic

The OEM B1756028L is shaped to the precise horizontal coil profile with the drain port positioned for full gravity drainage. Generic pans frequently misalign the outlet or lack the correct pitch, leaving standing water — a serious risk in horizontal attic installs where overflow goes straight into the ceiling. The OEM pan ensures proper slope and fit.

Installation Difficulty

Moderate to Hard (4/5) — Horizontal installs often have tight attic clearances. De-energize the unit, slide out the coil, replace the pan with a new gasket, and verify the drain pitches toward the outlet. Plan 60+ minutes and confirm both primary and secondary drains flow freely before restoring power.

For horizontal applications, a properly draining OEM pan paired with a float switch is the best defense against ceiling water damage.