The Worcester 871860492A0 heat exchanger assembly is a genuine Worcester Bosch primary heat exchanger engineered to transfer thermal energy from the combustion process into the boiler’s water circuits. As a critical core component of the appliance, this assembly ensures efficient heat absorption and distribution for central heating and domestic hot water production, helping maintain consistent performance, fuel efficiency, and reliable everyday operation. Manufactured to strict OEM standards, it is built to withstand repeated thermal cycling, pressure loads, and the demanding environment inside modern condensing boilers.

This heat exchanger assembly is compatible with specific Worcester Bosch boiler models that specify part number 871860492A0, typically including certain high-output and commercial series units. Because compatibility can vary by model range, boiler output, fuel type, and production year, it’s recommended to confirm suitability using the exact boiler model and GC number before purchase to ensure correct fit and performance.

Key features of the Worcester 871860492A0 heat exchanger assembly include its genuine Worcester Bosch construction for assured quality and compatibility, highly efficient thermal transfer surfaces designed for effective heat exchange, robust materials and engineering that resist corrosion and thermal stress, precise integration with the boiler’s combustion and hydronic systems, and dependable long-term operation when installed by a qualified Gas Safe heating engineer.