The Worcester Bosch 87161082120 Heat Exchanger is a genuine replacement thermal transfer component designed to efficiently move heat from the combustion process into your boiler’s central heating and hot water circuits. Built with 20 precision-engineered plates, this plate heat exchanger provides a large surface area for effective heat exchange, helping deliver stable system temperatures, rapid hot water response and reliable performance under everyday demand. Over time, heat exchangers can become blocked, corroded or less efficient, leading to reduced heating output, fluctuating temperatures or boiler fault codes, so fitting the correct OEM part is essential for restoring dependable and efficient operation.

This 20-plate heat exchanger is compatible with Worcester Bosch CDi, Highflow and GR series boilers that specify part number 87161082120 in their technical documentation. To ensure correct fitment and optimal performance, always verify the part number on your existing heat exchanger or consult your boiler’s service information before installation, as design, connection size and plate configurations vary between models and system types.

Supplied ready for direct replacement, the 87161082120 Heat Exchanger integrates seamlessly with the boiler’s existing pipework connections and mounting points without modification when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore efficient heat transfer, maintain consistent system temperatures and support dependable central heating and hot-water performance in compatible CDi, Highflow and GR boilers.