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The Goodman 20513001 is a genuine OEM condensate drain fitting engineered for the WGGE4330A045MAB gas furnace and compatible Goodman/Amana coil assemblies. This small but critical connector routes condensate away from the evaporator coil pan, preventing water backup, overflow, and the moisture damage that can corrode the heat exchanger cabinet. A cracked, brittle, or clogged fitting is one of the most common causes of a furnace shutting down on a wet-switch fault or leaking water onto the floor.
The OEM Goodman fitting is molded to the exact port geometry and thread pitch of the factory coil pan, giving a leak-free seal on the first attempt. Universal aftermarket fittings often require adapters or sealant and can weep at the joint. For a component this inexpensive, the factory part is the smart choice.
Easy (1 of 5). A quick hand-tool replacement — disconnect the drain line, remove the old fitting, seat the new one, and reconnect. Most homeowners and technicians complete it in under 15 minutes. Always shut off power to the furnace before servicing.