Trane PAN4391 Drain Pan

The Trane PAN4391 Horizontal Drain Pan is an OEM replacement condensate pan designed for compatible Trane HVAC equipment installed in a horizontal configuration. The PAN4391 collects condensate produced at the evaporator coil and directs it toward the system drain connection, helping prevent standing water and overflow around the air handler. The PAN4391 is also a replacement for Trane PAN3423 / PAN03423.

This Trane condensate drain pan should be matched to the equipment rather than selected by appearance or approximate dimensions. Drain pan configurations can vary depending on cabinet size, evaporator coil, and equipment orientation. Before ordering, verify the complete Trane model and serial number and confirm the original drain pan part number in the applicable equipment parts breakdown.

Key Benefits

• Manufacturer: Trane
• Part Number: PAN4391
• Product Type: Horizontal Drain Pan
• Designed for horizontal HVAC applications
• Collects and routes evaporator coil condensate
• Replacement for: PAN3423 / PAN03423
• Designed for compatible Trane air handlers and coil assemblies
• Helps prevent condensate accumulation inside the equipment cabinet

Common Questions

Is PAN4391 a horizontal or vertical drain pan?
The PAN4391 is a horizontal drain pan designed for compatible horizontal HVAC configurations.

Does Trane PAN4391 replace PAN3423?
Yes. The PAN4391 is listed as the replacement for PAN3423 / PAN03423.

Will PAN4391 fit my Trane air handler?
Compatibility should be confirmed using the complete equipment model and serial number. Drain pans can differ by cabinet size, coil configuration, and installation orientation even when they appear similar.

What should I check before ordering?
Verify the original part number, equipment model and serial number, horizontal installation configuration, cabinet fit, and drain connection arrangement.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

PAN4391 is the cross for PAN3423 

This item is not eligible for free shipping.