The Worcester 8716118462 Filling Loop Kit is a genuine replacement accessory designed to allow safe, controlled filling and topping-up of your central heating system with mains water. This kit provides a dedicated connection between the system’s cold-water supply and the boiler’s central heating circuit, enabling correct pressurisation to the manufacturer-specified level. Maintaining appropriate system pressure helps protect internal components, supports efficient heat transfer and reduces the risk of boiler faults related to low or inconsistent pressure.

This filling loop kit is compatible with Worcester and Worcester Bosch boilers that reference part number 8716118462 in their technical documentation. To ensure correct fitment and reliable performance, always verify the part number on your existing loop assembly or consult your boiler’s service information before installation.

Supplied ready for direct use, the 8716118462 Filling Loop Kit installs between the cold-water supply and central heating return pipework using the existing connection points when fitted by a qualified Gas Safe engineer. Choosing this genuine Worcester Bosch component helps restore proper system filling functionality, supports safe water ingress and contributes to dependable heating performance in compatible boilers.