
Worcester Bosch
Worcester Bosch vent valve 87174052850
Genuine Worcester Bosch vent valve, part number 87174052850, for the Greenstar Life GR8300iW 30R-50R range.
At a glance
- Part type: automatic air vent valve
- Also known as 2249306
- Any work on the sealed system should be carried out by a competent, Gas Safe registered engineer
£45.54
£37.95 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 a Worcester Bosch vent (air release) valve, part number 87174052850, used to bleed trapped air from the Greenstar Life GR8300iW boiler's hydraulic system so it can circulate water efficiently.
Signs this part needs replacing
- Gurgling or knocking noises from the boiler or radiators
- Cold spots at the top of radiators that won't clear after bleeding
- Water weeping from the valve cap or body
- Boiler losing pressure with no other visible leak
Before you order
- Match the part number printed on your existing valve to 87174052850
- Isolate the boiler's electrical and water supply before removal, and depressurise the system
- Any work on the sealed system should be carried out by a competent, Gas Safe registered engineer
Compliance
| Alternative numbers | 2249306 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 30 R LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 30 R NG | 41-406-98 | 41-406-98 | — | — |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 35 R LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 35 R NG | 41-406-97 | 41-406-97 | — | — |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 40 R LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 40 R NG | 41-406-96 | 41-406-96 | — | — |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 45 R LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 45 R NG | 41-406-95 | 41-406-95 | — | — |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 50 R LPG | — | — | — | |
| WORCESTER GREENSTAR 8000 LIFE REGULAR GR8300iW 50 R NG | 41-406-94 | 41-406-94 | — | — |
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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.
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