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The Goodman 0154A00000BL is a genuine OEM drain pan gasket made to fit the WAHME3137P4ACA air handler. The gasket seals the condensate drain pan to the cabinet or coil assembly, ensuring water that collects during the cooling cycle is contained and routed to the drain rather than seeping into the cabinet. A hardened, compressed, or missing gasket is a frequent and easily overlooked cause of cabinet leaks and water damage, and replacing it restores a clean, watertight seal.
The genuine Goodman OEM gasket is die-cut to the exact pan profile and thickness, so it compresses evenly and seals on the first fit. Generic foam or trimmed roll-stock seldom matches the contour, can over- or under-compress, and tends to leak or degrade quickly. At this price, OEM removes any guesswork from the seal.
Easy. Remove the old gasket, clean the mating surface, align the new gasket to the pan, and reassemble. Typically a 15–20 minute task. Always water-test the pan after reassembly to confirm the seal.