OEM Goodman Horizontal Drain Pan for WAHMS1824P4ABA Air Handler — B1756021L

Goodman B1756021L Horizontal Drain Pan

The B1756021L is a genuine OEM horizontal condensate drain pan engineered for the Goodman WAHMS1824P4ABA air handler. Mounted beneath the evaporator coil, it captures condensate and channels it to the drain line, protecting the cabinet, ductwork, and surrounding structure from water damage and corrosion. Because it is the factory-specified part, it drops directly into place with no modification — the mounting points, slope, and drain port align exactly with the original.

Specifications

• Part type: Horizontal condensate drain pan
• Orientation: Horizontal air handler configuration
• OEM part number: B1756021L
• Brand: Goodman
• Compatible model: WAHMS1824P4ABA
• Equipment: Air Handler

OEM vs. Generic

This is a genuine Goodman OEM drain pan. Generic universal pans often require trimming, re-drilling drain ports, or adapting the slope, which risks standing water and overflow. The OEM B1756021L guarantees correct fit, factory drainage slope, and full compatibility with the WAHMS1824P4ABA cabinet.

Installation Difficulty

Moderate — Requires removing the coil access panel and sliding out the existing pan. No special tools beyond standard HVAC hand tools. Most technicians complete the swap in 30–45 minutes. Always cut power and recover/secure the coil before servicing.