OEM Goodman Horizontal Drain Pan for ARPF374316AA — B1756028L

The Goodman B1756028L Horizontal Drain Pan is a genuine OEM condensate pan built specifically for horizontal-mount installations of the ARPF374316AA air handler and matching Goodman/Amana coil sections. In horizontal (attic or crawlspace) applications, the pan runs the full length of the coil to catch condensate that would otherwise drip onto framing or insulation, then routes it to the secondary or primary drain connection.

Horizontal pans take more abuse than vertical ones — they sit in standing-water orientation and are prone to corrosion, warping, and cracked drain bosses. A genuine replacement restores the correct slope and seal so water exits cleanly instead of pooling.

Specifications

• OEM Part Number: B1756028L
• Orientation: Horizontal (left or right airflow)
• Application: Full-length coil condensate capture
• Drain Ports: Primary and secondary, factory-located
• Compatibility: Goodman ARPF374316AA air handler

OEM vs. Generic

The OEM B1756028L matches the exact length, depth, and drain-port placement of your coil cabinet, ensuring proper slope toward the outlet. Generic horizontal pans frequently sit too shallow or misalign the drain stub, causing overflow trips and water damage in attic installs — exactly where leaks are most costly.

Installation

Difficulty: Moderate. The coil typically must be slid out to access and replace the pan, and the new pan must be re-pitched toward the drain. Plan 45–90 minutes. Attic and tight-clearance jobs are best handled by a licensed HVAC technician.