OEM Goodman Vertical Drain Pan 23x20 in for WAHMS4860P4ABA — B1756020L

The genuine Goodman B1756020L Vertical Drain Pan is the factory condensate pan for WAHMS4860P4ABA air handlers configured in the vertical (upflow/downflow) position. Measuring 23 x 20 inches outside dimension, it captures condensate dripping off the evaporator coil and channels it to the drain connection, protecting the cabinet, ductwork, and surrounding structure from water damage and mold. A cracked or corroded pan leads to overflow, ceiling stains, and water-triggered float-switch shutdowns.

Specifications

• Part Number: B1756020L
• Type: Vertical condensate drain pan
• Size: 23 in x 20 in (outside dimension)
• Orientation: Vertical coil applications
• Brand: Goodman (OEM)
• Fits Model: WAHMS4860P4ABA air handler

OEM vs. Generic

This genuine Goodman OEM pan is molded to the exact coil footprint and drain-port location of your air handler, so the coil seats correctly and condensate flows to the right outlet. Universal pans rarely match the drain location and can leave standing water that breeds algae and clogs the line.

Installation Difficulty

Moderate (3/5). Requires pulling the coil to access and swap the pan, then re-sealing the drain connection. Best handled by an HVAC technician; budget 1–2 hours. Shut off power and follow proper coil-handling procedures.