OEM Goodman Vertical Drain Pan 23 x 20 in for WAHMS4860P4ACA — B1756020L

The Goodman B1756020L Vertical Drain Pan is a genuine OEM condensate pan measuring 23 x 20 inches (OD), built for the WAHMS4860P4ACA air handler in vertical-mount configurations and compatible Goodman/Amana models. It collects condensate from the evaporator coil and channels it to the drain line, protecting the cabinet, ductwork, and surrounding structure from water damage. A cracked or corroded original pan is a leading cause of ceiling and floor leaks.

Specifications

• Part Number: B1756020L
• Type: Vertical condensate drain pan
• Dimensions: 23 x 20 in (outside diameter)
• Orientation: Vertical mount
• Brand: Goodman (OEM)
• Equipment: Air Handler
• Primary Fit: WAHMS4860P4ACA

OEM vs. Generic

This genuine Goodman OEM pan matches the exact footprint, drain-port location, and slope of the original, so condensate drains fully with no standing water or overflow. Generic pans rarely align drain connections and mounting flanges precisely, risking leaks and improper drainage. For a part whose only job is keeping water contained, the correctly fitted OEM pan is worth it.

Installation Difficulty

Moderate (3/5) — Often requires partial removal of the coil or access panels to seat the pan and reconnect the drain line. Confirm the pan slopes toward the drain port and test for leaks after install. Disconnect power and shut off the system before servicing.