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Worcester Bosch Expansion Vessel 8736500016

Worcester Bosch

Worcester Bosch Expansion Vessel 8736500016

Worcester Bosch expansion vessel, part number 8736500016, for use in sealed heating systems.

At a glance

  • Also known as 2248161
Manufacturer part no.
8736500016
Showing prices

£141.40

£117.83 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Worcester Bosch 8736500016 expansion vessel is a sealed-system component supplied by Worcester Bosch. It holds a contained air cushion that absorbs the expansion of water as a heating system warms up, limiting the pressure rise within the circuit. It is the part to specify when the existing vessel on a Worcester Bosch appliance has failed or lost its charge.

Before you order

  • Confirm that 8736500016 matches the part number listed for the appliance in its installation or service documentation.
  • Check the connection arrangement and mounting of the vessel being replaced against the new part before ordering.
  • Check system pressure and the condition of the pressure relief valve, as a failed valve can produce symptoms similar to a failed vessel.

Not sure which part?

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