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The Goodman 0154A00000BL Drain Pan Gasket is a genuine OEM sealing gasket for the WAHMS4961P4AAA wall-mount air handler. It forms a watertight seal between the drain pan and the cabinet or coil base, ensuring condensate flows to the drain instead of seeping into the unit. A flattened, torn, or missing gasket is a frequent cause of mysterious leaks and water staining beneath an air handler.
The genuine Goodman OEM gasket is die-cut to the exact pan profile and uses the correct thickness and compression set for a lasting seal. Generic foam or rubber strips compress unevenly and degrade faster, leading to repeat leaks. Replacing the gasket whenever the pan is serviced is inexpensive insurance against water damage.
Peel away the old gasket, clean the mating surface, and apply the new gasket along the pan flange before reseating. No tools beyond a scraper and cleaner are required. Inspect for full, even contact before restoring the unit to service.