The diverter valve is a part that only appears in combi boilers. It allows the hot water to be redirected to the heating system (radiators, etc.) or to the DHW system (taps, etc.). This feature is what seperates a normal boiler from a combi boiler due to
Part Number 87161087230
Comes with Lead attached
Technical specification
Waist Sizeaa17ce14gxTypeDiverter Valve ActuatorERP RatingNot ApplicableSupplier Part Number87161087230Brand NameWorcester Bosch