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The Goodman 0161F00018 Flue Collector Box is a genuine OEM combustion component for the Amana/Goodman AMSS920805CNAA high-efficiency gas furnace. The collector box seals to the heat-exchanger outlets and gathers flue products, directing them into the inducer and venting system while capturing condensate in high-efficiency operation. A cracked or corroded collector box causes venting problems, condensate leaks, and pressure-switch faults.
Because the collector box handles corrosive condensate and must seal perfectly against the heat exchanger, the OEM part is strongly recommended. It matches the exact port locations, gasket surfaces, and drain outlet of the original. Aftermarket boxes rarely align correctly and can leak flue gas — a safety hazard.
Moderate — professional recommended (1 to 2 hours). Requires disconnecting the inducer, pressure-switch tubing, and drain lines, then re-sealing gaskets. Because it involves the combustion/venting path, we recommend a licensed HVAC technician.