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The Goodman 4053501S Chimney Collar is a genuine OEM vent-connection component for the Goodman GMP075-3 gas furnace. The chimney collar forms the transition between the furnace flue outlet and the vent pipe, maintaining a secure, properly sized connection for safe draft. A rusted, loose, or mismatched collar can leak flue gases and undermine venting performance, so a correct factory replacement is important for safe operation.
This Goodman OEM chimney collar matches the exact diameter, flange, and mounting pattern of the GMP075-3 flue outlet. Generic collars may be close but not exact, leaving gaps that leak combustion gases. For a vent-side safety part, the OEM collar guarantees a proper, sealed fit.
Easy to Moderate. Typically involves disconnecting the vent pipe, removing fasteners, and installing the new collar with proper sealing. Shut off power and gas before service; a qualified technician should verify draft afterward.