
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
£59.35
£49.46 ex. VAT · VAT at 20%
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
Compliance
| Alternative numbers | 2246621 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR HEATSLAVE II 12/18 ErP | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE II 18/25 ErP | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE II EXT 12/18 ErP | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE II EXT 18/25 ErP | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
