Worcester Bosch Drain Assembly 87161056450

The Worcester Bosch drain assembly, part number 87161056450, is a hydraulic component used on the Junior RSF range of gas boilers. It sits within the manifold and drainage path of the appliance, collecting and directing water away from the heat exchanger and internal hydraulic sections so that condensate and residual water leave the boiler cleanly rather than pooling inside the casing. It is listed under diverter valves and hydraulics spares and is supplied as a single assembly.

• Water collecting inside the boiler casing or dripping from the manifold area
• Visible corrosion, scale build-up or cracking around the drain body
• Damp patches or staining beneath the appliance
• Persistent condensate residue that will not clear through the normal drainage route
• Leaks that reappear after the surrounding seals have been checked

• Check the GC number on the appliance data badge against the compatibility list, as the 24i and 28i Junior RSF variants use different GC numbers
• Confirm whether the boiler is LPG or natural gas, since both versions appear in the fitment list
• Have the alternative number 1014673 to hand if you are cross-referencing an older parts list
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.