Worcester Bosch
Worcester Bosch Return Pipe 8716121859
Return pipe for Worcester Bosch Greenstar 4000 System and Gr4700IW system boilers, part 8716121859.
At a glance
- Appliance family: Greenstar 4000 System and Gr4700IW system boilers
- Also known as 8922916
£28.01
£23.34 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
The return pipe is a Worcester Bosch component used in the water circuit of Greenstar 4000 System and Gr4700IW system boilers. It carries water back through the appliance as part of the heating circuit. This part is identified by Worcester Bosch part number 8716121859.
Signs this part needs replacing
- Weeping or visible water traces at the pipe or its joints
- Corrosion, pitting or staining on the pipe surface
- Loss of system pressure that cannot be traced to other components
- Air ingress or noise in the pipework around the return circuit
Before you order
- Confirm the boiler model and GC number against the fit list above
- Check the appliance is a Greenstar 4000 System or Gr4700IW system boiler
- Verify the existing pipe and connection points match the part being replaced
- Have the boiler isolated and drained before any work begins
Compliance
| Alternative numbers | 8922916 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S LPG | 41-800-08 | 41-800-08 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S NG | 41-800-07 | 41-800-07 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S LPG | 41-800-10 | 41-800-10 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S NG | 41-800-09 | 41-800-09 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S LPG | 41-800-12 | 41-800-12 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S NG | 41-800-11 | 41-800-11 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 21 S LPG | 41-800-14 | 41-800-14 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 21 S NG | 41-800-13 | 41-800-13 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 24 S LPG | 41-800-16 | 41-800-16 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 24 S NG | 41-800-15 | 41-800-15 | — | — |
Showing 10 of 20 compatible appliances.
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 documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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