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Worcester Bosch Pipe Assembly Domestic Cold Water 87186841710

Worcester Bosch

Worcester Bosch Pipe Assembly Domestic Cold Water 87186841710

Domestic cold water pipe assembly for Worcester Bosch Greenstar Heatslave II and EXT boilers.

At a glance

  • Appliance family: Greenstar Heatslave II and Heatslave II EXT
  • Also known as 2246621
Manufacturer part no.
87186841710
Showing prices

£59.35

£49.46 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

This is the Worcester Bosch pipe assembly for the domestic cold water supply, listed by the manufacturer under part number 87186841710. It is also catalogued as the DCH return pipe for the Greenstar Heatslave II and Heatslave II EXT appliance families. The pipe assembly carries the domestic cold water feed within the boiler's pipework arrangement.

Signs this part needs replacing

  • Visible water weeping or damp staining around the pipe run or its connections
  • Corrosion or pitting on the pipe surface, particularly at joints and bends
  • Scale or debris build-up restricting flow through the cold water supply
  • Physical damage such as kinks, cracks or deformed pipework
  • Frost damage following a period of cold weather in an unheated installation

Before you order

  • Confirm the appliance model against the fit list above, including whether it is the EXT variant
  • Check the existing part number against 87186841710 before ordering
  • Inspect the pipe run and connections to confirm the fault is with this assembly rather than an adjacent component
  • Verify the pipework routing in the installation matches the layout of this assembly

Not sure which part?

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