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Worcester Bosch Pipe CH Flow 8737603357

Worcester Bosch

Worcester Bosch Pipe CH Flow 8737603357

Central heating flow pipe, part 8737603357, for Worcester Bosch Greenstar 2000 combi boilers.

At a glance

  • Appliance family: Greenstar 2000 / Gr2300IW combi
  • Also known as 8905850
Manufacturer part no.
8737603357
Showing prices

£27.31

£22.76 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 Pipe CH Flow is a central heating water pipe supplied by Worcester Bosch under part number 8737603357. It forms part of the heating circuit pipework on Worcester Bosch Greenstar 2000 and Gr2300IW combi boilers, carrying heated water from the appliance into the system. It is a manufacturer-supplied component intended for use on the models listed below.

Signs this part needs replacing

  • Visible weeping, staining or corrosion at the pipe or its joints
  • Loss of system pressure that cannot be traced to any other component
  • Damp or discoloured pipework inside the appliance casing
  • Leak detected during a service or pressure test on the heating circuit

Before you order

  • Confirm the boiler model and GC number against the fit list above
  • Check the pipe run and connections on the appliance to confirm this is the flow pipe required
  • Verify the existing part number against 8737603357 where the original is still legible

Not sure which part?

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