{"product_id":"worcester-greenstar-main-heat-exchanger-refurbished-87161157400","title":"Worcester Greenstar Main Heat Exchanger – Refurbished | Part No. 87161157400","description":"\u003cp\u003eThe main heat exchanger is the principal thermal component of a Worcester Greenstar condensing boiler — a precision-manufactured stainless steel assembly through which combustion gases transfer the majority of their heat energy into the primary water circuit. Failure or significant degradation of this component typically manifests as reduced heating output, repeated high-limit thermostat lockouts (often accompanied by an A fault code), abnormally high flue temperatures, or in more advanced cases, visible moisture contamination in the flue gas pathway caused by internal corrosion breaching the exchanger wall. The \u003cstrong\u003eWorcester Greenstar Main Heat Exchanger (Part No. 87161157400)\u003c\/strong\u003e is the correct OEM replacement that fully restores primary thermal efficiency and safe combustion isolation.\u003c\/p\u003e\n\n\u003cp\u003eThis is a professionally refurbished genuine Worcester Bosch main heat exchanger. Each unit undergoes a comprehensive inspection — the stainless steel exchanger body, condensate tray, burner manifold connections, flow and return ports, and all associated seals and gaskets are examined and replaced as required. The assembly is then hydraulically pressure-tested at full working pressure to confirm complete structural integrity and leak-free performance at every connection point before dispatch. You receive the same thermal output and flue gas integrity as a new Worcester exchanger, at a considerably lower cost.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible Boiler Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eGC No.\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 24i Junior\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e47-311-57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 28i Junior\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e47-311-58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 30i Junior\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e47-311-59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 24i System\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e41-311-57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 30i System\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e41-311-58\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 35i System\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e41-311-59\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eWorcester Greenstar 40i System\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e41-311-60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Quality. Proven Performance. Backed by Warranty.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEvery refurbished Worcester main heat exchanger we supply is pressure-tested and performance-verified before dispatch. This 87161157400 unit restores full primary heat transfer and condensing efficiency on the Greenstar i range, resolves high-limit lockout faults associated with a degraded exchanger, and ensures combustion gases remain fully isolated from the heating circuit. Supplied with a full \u003cstrong\u003e12-month warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDelivery \u0026amp; Returns\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOrders placed before \u003cstrong\u003e1:00 PM (Mon–Fri)\u003c\/strong\u003e are dispatched the same working day, with standard (2–3 working days), next-day, and Saturday delivery options available at checkout. Returns are accepted within \u003cstrong\u003e30 days\u003c\/strong\u003e, provided the item is unused and in its original packaging.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please confirm that part number \u003cstrong\u003e87161157400\u003c\/strong\u003e matches your existing heat exchanger before ordering. Main heat exchanger replacement must be carried out by a \u003cstrong\u003eGas Safe registered engineer\u003c\/strong\u003e to ensure safety compliance and warranty validity.\u003c\/p\u003e","brand":"Worcester","offers":[{"title":"Refurbished","offer_id":48001097564325,"sku":"MHX-7400-A-BC","price":69.99,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/ephsuppliers.com\/products\/worcester-greenstar-main-heat-exchanger-refurbished-87161157400","provider":"Elite Plumbing \u0026 Heating Suppliers Ltd","version":"1.0","type":"link"}