{"product_id":"oem-lennox-heat-exchanger-assembly-52m87","title":"OEM Lennox Heat Exchanger Assembly — 52M87","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e52M87\u003c\/strong\u003e heat exchanger assembly (factory reference R20467603) is the core component that transfers combustion heat to your home's air while keeping flue gases safely separated from the airstream. It is engineered to the exact dimensions, gauge, and alloy specifications of your Lennox furnace to ensure proper airflow, rated efficiency, and a safe, sealed combustion path.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e cracked or rusted metal, visible corrosion, soot buildup, flame rollout, a flickering or shifting burner flame, unusual odors, or a carbon monoxide alarm. A compromised heat exchanger is a serious safety concern and should be replaced promptly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The heat exchanger is a safety-critical part. Only a genuine Lennox \u003cstrong\u003e52M87\u003c\/strong\u003e assembly guarantees the correct fit, metallurgy, and welds needed to withstand repeated thermal cycling and maintain a gas-tight seal. Aftermarket substitutes risk premature cracking, improper sealing, and voided warranties. Choose factory OEM to protect your equipment and your family.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081064563059,"sku":"LNX-52M87","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-52m87","provider":"National HVAC Parts","version":"1.0","type":"link"}