The Worcester Bosch 87161429000 CDi Plate Heat Exchanger PVW 12E is a genuine replacement thermal transfer component engineered to move heat efficiently from the boiler’s combustion process into the domestic hot water and central heating circuits. Built as a plate-style exchanger with closely spaced stainless-steel plates, it provides a large surface area for effective heat transfer, helping deliver stable temperatures and responsive hot-water performance under everyday demand. When the original heat exchanger becomes blocked, corroded or otherwise less effective, symptoms such as poor hot-water flow, fluctuating temperatures or boiler lockouts can occur, so fitting the correct OEM part is essential for reliable operation.

This PVW 12E plate heat exchanger is compatible with Worcester Bosch CDi series boilers that specify part number 87161429000 in their technical documentation. To ensure correct fitment and optimum performance, always verify the part number on your existing heat exchanger or consult your boiler’s service information before installation, as designs and connection formats vary between models and system configurations.

Supplied ready for direct replacement, the 87161429000 plate heat exchanger integrates seamlessly with the boiler’s existing pipework and mounting points when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore efficient heat transfer, supports consistent hot-water delivery and contributes to dependable heating and hot-water performance in compatible CDi boilers.