{"product_id":"oem-goodman-chimney-collar-for-gmp100-3-furnace-4053501s","title":"OEM Goodman Chimney Collar for GMP100-3 Furnace — 4053501S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 4053501S Chimney Collar\u003c\/strong\u003e (vent collar) is a genuine OEM part for the \u003cstrong\u003eGoodman GMP100-3\u003c\/strong\u003e gas furnace. The chimney collar is the transition fitting that connects the furnace draft hood or flue outlet to the vent pipe, providing a secure, properly sized coupling for combustion gases exiting the appliance. A corroded, loose, or mismatched collar can leak flue gas and disrupt draft, so an exact-fit replacement matters.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 4053501S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e Goodman GMP100-3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Flue \u0026amp; Vent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Type:\u003c\/strong\u003e Gas Furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Corrosion-resistant coated\/galvanized steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis factory collar matches the GMP100-3 flue outlet diameter and mounting exactly, so it seats and seals without rework. Generic vent collars often differ in diameter or flange pattern, forcing improvised sealing that can leak. For any part in the combustion-vent path, OEM fit is the reliable choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — accessible at the furnace flue outlet and secured with standard fasteners, but it is part of the venting system. A qualified technician should verify the vent connection and draft after installation.\u003c\/p\u003e\u003cp\u003eAlways shut off gas and power before servicing. Contact info@nationalhvacparts.com with your model and serial number if you need help confirming fitment.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057148117363,"sku":"GOODMAN-4053501S","price":20.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-chimney-collar-for-gmp100-3-furnace-4053501s","provider":"National HVAC Parts","version":"1.0","type":"link"}