OEM Goodman Drain Pan Gasket for WAHMS3642P4ABA — 0154A00000BL

The Goodman 0154A00000BL Drain Pan Gasket is a genuine OEM sealing component for WAHMS3642P4ABA air handlers. It forms a watertight seal between the condensate drain pan and the cabinet, preventing condensate from wicking past the joint and causing cabinet rust, ceiling stains, or water damage below the unit.

Molded to the exact pan profile, this gasket maintains consistent compression along the full sealing surface so the drain pan empties cleanly to the primary drain instead of pooling. Replacing a hardened or torn gasket during coil or pan service is the single best way to stop nuisance condensate leaks.

Specifications

• Component: Drain pan gasket / seal
• Fits: Goodman WAHMS3642P4ABA air handler
• Material: Closed-cell foam / elastomer
• Function: Condensate pan-to-cabinet watertight seal
• OEM Part Number: 0154A00000BL

OEM vs. Generic

The OEM gasket matches the factory cut and thickness for full-perimeter compression and reliable drainage. A Generic trim-to-fit foam strip is cheaper but rarely seals evenly, leaving gaps that invite slow condensate leaks and corrosion.

Installation Difficulty

Easy (1/5) — Peel the old gasket, clean the mating surface, and seat the new gasket before reinstalling the drain pan. Hand tools only; allow adhesive (if used) to set before refilling the system.