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The Goodman 0154A00000BL Drain Pan Gasket is a genuine OEM sealing gasket for ARPF364216AA air handlers. It seats between the drain pan and the cabinet/coil assembly to create a watertight barrier, ensuring condensate flows only to the drain ports instead of seeping into the cabinet. A flattened, torn, or missing gasket is one of the most common causes of nuisance water leaks under an air handler.
The authentic Goodman OEM gasket is die-cut to the exact pan profile and thickness, so it compresses evenly without gaps. Generic foam strips often vary in thickness and can leave channels where water escapes. Given the low cost, OEM is the clear value here.
Easy — peel, position, and seat during pan reinstallation. Best replaced any time the drain pan is removed. Plan about 15 minutes including pan reseating.