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The 4053501S is the genuine OEM chimney (flue) collar for the Goodman GMPE125-5 gas furnace. It forms the transition between the furnace flue outlet and the vent connector, maintaining a proper draft seal and holding the vent pipe in correct alignment. A cracked, corroded, or missing collar can allow flue-gas leakage and disrupt draft — a safety concern that should be corrected promptly.
The OEM Goodman collar is stamped to the exact flue-outlet diameter and bolt pattern of the GMPE125-5, so it seats cleanly without gaps. Universal collars often require shimming or sealant work-arounds that compromise the draft seal. For venting components, an exact factory fit is the safest choice.
Typically a few sheet-metal screws and a bead of high-temp sealant — about 15–20 minutes. Confirm the vent connector is properly sized and the draft is verified after installation. Shut off power and gas before servicing, and inspect adjacent flue components for corrosion while the collar is off.
Fits Goodman GMPE125-5. Match your old collar's diameter and part number before ordering.