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Worcester Bosch Return Pipe (CH) 8737604262

Worcester Bosch

Worcester Bosch Return Pipe (CH) 8737604262

Return pipe for the central heating circuit on Worcester Bosch Greenstar 1000 Series Gr1000W combi boilers, part 8737604262.

At a glance

  • Part type: return pipe (CH)
  • Appliance family: Greenstar 1000 Series
  • Also known as 1038383
Manufacturer part no.
8737604262
Showing prices

£24.30

£20.25 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 8737604262 is a return pipe for the central heating circuit. It is used on Greenstar 1000 Series Gr1000W combi boilers to carry heating water back to the appliance. The pipe forms part of the boiler's internal water circuit and must be matched to the correct model before fitting.

Signs this part needs replacing

  • Water weeping or dripping from the pipe or its joints
  • Visible corrosion, pitting or scaling on the pipe surface
  • Staining or mineral deposits around the pipe connections
  • Repeated loss of system pressure that requires frequent top-ups

Before you order

  • Check the appliance data badge and confirm the model matches one of the fitments listed above.
  • Confirm the part number 8737604262 against the manufacturer's parts list for your boiler.
  • Check whether seals, washers or clips are required separately, as they are not confirmed as included.
  • Isolate the appliance and drain the heating circuit before removing the existing pipe.

Not sure which part?

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