Worcester Bosch
Worcester Bosch Isolation Valve Assembly MAPL System 8737709185
Worcester Bosch 8737709185 isolation valve assembly for the MAPL system on Greenstar 8000 Life and 8000+ Style system boilers.
At a glance
- Part type: Isolation valve
- Also known as 8905114
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£401.52
£334.60 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 Worcester Bosch 8737709185 is an isolation valve assembly used on the MAPL system of Greenstar system boilers. It provides a service point where the water circuit can be shut off, allowing components to be removed or worked on without draining down the whole appliance. Worcester Bosch supplies it as the factory replacement for the valve originally fitted to these boilers.
Signs this part needs replacing
- The valve spindle seizes and will not turn by hand
- Water weeps from the gland or spindle when the valve is operated
- The valve will not shut off fully, so the circuit cannot be isolated for service work
- Dripping from the valve body or its connections after the system has been worked on
- Scale or debris in the heating circuit causing the valve to stick or pass water
Before you order
- Check the GC number and serial plate on the appliance to confirm the model before ordering.
- The alternative number 8905114 may be marked on the valve being replaced.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Isolation valve |
|---|
Compliance
| Manufacturer part number (MPN) | 8737709185 |
|---|---|
| Commodity code | 8481 80 99 00 |
| GPC classification | Valves/Fittings - Water and Gas |
| Alternative numbers | 8905114 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 8000 LIFE SYSTEM GR8300iW 30 S LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE SYSTEM GR8300iW 30 S NG | 41-406-91 | 41-406-91 | — | — |
| WORCESTER GREENSTAR 8000 LIFE SYSTEM GR8300iW 35 S LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE SYSTEM GR8300iW 35 S NG | 41-406-90 | 41-406-90 | — | — |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 S LPG | — | — | — | |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 S NG | 41-406-87 | 41-406-87 | — | — |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 SB LPG | — | — | — | |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 SB NG | 41-406-83 | 41-406-83 | — | — |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 S LPG | — | — | — | |
| WORCESTER GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 S NG | 41-406-86 | 41-406-86 | — | — |
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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.
WORCESTER appliance manual — GREENSTAR 8000 LIFE SYSTEM GR8300iW 30 S LPG, GREENSTAR 8000 LIFE SYSTEM GR8300iW 30 S NG (GC 41-406-91), GREENSTAR 8000 LIFE SYSTEM GR8300iW 35 S LPG, GREENSTAR 8000 LIFE SYSTEM GR8300iW 35 S NG (GC 41-406-90), GREENSTAR LIFE GR8300iW 30 S LPG, GREENSTAR LIFE GR8300iW 30 S NG (GC 41-406-91), GREENSTAR LIFE GR8300iW 35 S LPG, GREENSTAR LIFE GR8300iW 35 S NG (GC 41-406-90)
manualmanualWORCESTER appliance manual — GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 S LPG, GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 S NG (GC 41-406-87), GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 SB LPG, GREENSTAR 8000+ STYLE SYSTEM GR8700iW 30 SB NG (GC 41-406-83), GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 S LPG, GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 S NG (GC 41-406-86), GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 SB LPG, GREENSTAR 8000+ STYLE SYSTEM GR8700iW 35 SB NG (GC 41-406-82), GREENSTAR STYLE GR8700iW 30 S LPG, GREENSTAR STYLE GR8700iW 30 S NG (GC 41-406-87), GREENSTAR STYLE GR8700iW 30 SB LPG, GREENSTAR STYLE GR8700iW 30 SB NG (GC 41-406-83), GREENSTAR STYLE GR8700iW 35 S LPG, GREENSTAR STYLE GR8700iW 35 S NG (GC 41-406-86), GREENSTAR STYLE GR8700iW 35 SB LPG, GREENSTAR STYLE GR8700iW 35 SB NG (GC 41-406-82)
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