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The B2832500 is a genuine OEM collector box gasket for Goodman and Amana gas furnaces, including the GMPN060-3. It forms the high-temperature seal between the heat exchanger collector box and the furnace, keeping combustion and flue gases contained on their way to the inducer and vent. A sound gasket here is essential for safe operation and correct draft.
Because this gasket seals a combustion-gas pathway, a proper fit is a safety matter — leaks can allow flue products to escape. Genuine Goodman gaskets are die-cut to the exact collector box footprint and rated for the temperatures at the heat exchanger. Generic sheet-cut substitutes may not match the bolt pattern or temperature rating and are not recommended here.
Moderate (3/5). Involves removing the inducer and/or collector box, scraping off old gasket material, and cleanly reseating the new gasket without gaps. Re-check for a tight, even seal before restoring power.
Combustion-seal repairs should be verified with a CO check. When in doubt, use a licensed HVAC technician.