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Worcester Bosch Filling Loop Kit 8716118462

Worcester Bosch

Worcester Bosch Filling Loop Kit 8716118462

Worcester Bosch filling loop kit (8716118462) for Greenstar and Greenstar ErP boilers, used to manually top up central heating system pressure.

At a glance

  • Part type: Filling loop kit
  • Also known as 1012671
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
8716118462
GC number
H27-512
Showing prices

£58.79

£48.99 ex. VAT · VAT at 20%

In stock
Order within 8m for same-day dispatch
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch filling loop kit, part 8716118462, is a service component for Greenstar and Greenstar ErP condensing boilers. It links the mains cold water supply to the central heating circuit so the system can be topped up by hand when pressure drops. Internal filling loops use a key that can be withdrawn to break the connection after use, while external loops are typically removable to comply with water regulations.

Signs this part needs replacing

  • System pressure falls repeatedly and the boiler needs frequent topping up
  • Water weeping or dripping from the filling loop valve body or its connections
  • Filling loop key missing, seized or rounded off so the valve cannot be operated
  • Boiler locks out or displays a low pressure fault after topping up
  • Visible scale, corrosion or stiff operation around the loop assembly

Before you order

  • Check the GC number and model shown on the appliance data badge against the compatibility list.
  • Confirm the appliance is a Greenstar or Greenstar ErP model covered by this kit.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.