OEM Goodman Horizontal Drain Pan for ARPF182416CA — B1756021L

The Goodman B1756021L Horizontal Drain Pan is a genuine OEM condensate pan engineered for the ARPF182416CA air handler installed in the horizontal (attic/crawlspace) orientation. It captures coil condensation along the unit's length and directs it to the drain outlet, preventing overflow that can damage attic decking and ceilings below. A corroded or cracked horizontal pan is a common cause of attic water leaks — this direct replacement restores reliable drainage.

Specifications

• Part number: B1756021L
• Orientation: Horizontal (left/right airflow)
• Function: Evaporator condensate drain pan
• Material: Corrosion-resistant molded pan
• Equipment: Air Handler
• Fits model: ARPF182416CA
• Brand: Goodman (OEM)

OEM vs. Generic

This genuine Goodman OEM pan matches the horizontal coil profile, slope, and drain-port position for proper gravity flow. Generic pans often lack the correct pitch, leading to standing water and microbial growth. OEM ensures correct drainage and fit.

Installation Difficulty

Moderate — requires accessing the horizontal coil section, removing the old pan, and reseating with the correct slope toward the drain. Plan 45–75 minutes, often in a tight attic space. Disconnect power and confirm the secondary drain/float switch is clear. Professional installation is recommended.