OEM Goodman 23x20 Vertical Drain Pan for WAHME3137P4ACA — B1756020L

The Goodman B1756020L Vertical Drain Pan is a genuine OEM condensate pan sized 23 x 20 inches (outside dimensions) for vertical (upflow/downflow) installations of the WAHME3137P4ACA air handler. It collects condensate from the evaporator coil and channels it to the drain line. Cracked, corroded, or algae-clogged pans cause water leaks and overflow shut-offs — this factory replacement restores proper drainage and protects the cabinet and surrounding area from water damage.

Specifications

• Part Number: B1756020L
• Type: Vertical condensate drain pan
• Dimensions: 23 in x 20 in (OD)
• Orientation: Vertical (upflow / downflow)
• Brand: Goodman (OEM)
• Fits: WAHME3137P4ACA air handler

OEM vs. Generic

This genuine Goodman OEM pan is molded to the exact coil footprint and drain-port location of your unit. Universal aftermarket pans frequently misalign the drain connection or sit unevenly, leading to standing water and recurring leaks. OEM ensures correct slope, fit, and reliable condensate flow.

Installation Difficulty

Moderate (3 of 5). Requires pulling the coil to swap the pan and re-sealing the drain connections. Plan for 45–60 minutes. Confirm the drain line is clear and pitched correctly before reassembly, and power down the unit first.