Worcester Bosch
Worcester Bosch Pressure Relief Valve 87161064310
At a glance
- Part type: Pressure relief valve
- Also known as WB87161064310, 1014899, N8647
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£34.02
£28.35 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 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
The Worcester Bosch 87161064310 is a pressure relief valve belonging to the hydraulics group of boiler spares. It is a spring-loaded safety valve that opens when the water pressure inside the heating circuit rises above its set point, discharging water through the discharge pipe to protect the boiler, pipework and radiators from over-pressurisation. It is used across the Worcester Bosch and British Gas Greenstar combi and system range.
Signs this part needs replacing
- Water weeping or running continuously from the discharge pipe while the boiler is cold
- System pressure creeping up on the gauge, or sitting higher than normal when the boiler is idle
- Boiler losing pressure and needing regular top-ups from the filling loop
- The valve failing to reseat after it has lifted, leaving the discharge pipe wet
- Scale, sludge or debris visible around the valve seat or outlet
Before you order
- Check the GC number on the appliance data badge against the compatibility list below before ordering
- Compare the alternative part numbers listed below with the number stamped or printed on the old valve
- Have a suitable sealing washer or gasket to hand, as the existing seal may be disturbed when the valve is removed
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Pressure Relief Valve |
|---|
Compliance
| Manufacturer part number (MPN) | 87161064310 |
|---|---|
| GC number | H09-750 |
| Barcode / EAN | 4010009876014 |
| GPC classification | Valves/Fittings - Water and Gas |
| Alternative numbers | WB87161064310, 1014899, N8647 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER BRITISH GAS 430/I | 41-311-80 | 41-311-80 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 430/I SYSTEM LPG | 41-311-81 | 41-311-81 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 532/I COMBI LPG | 47-406-03 | 47-406-03 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 532/I COMBI NG | 47-406-02 | 47-406-02 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 537/I COMBI LPG | 47-406-05 | 47-406-05 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 537/I COMBI NG | 47-406-04 | 47-406-04 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 542/I COMBI LPG | 47-406-07 | 47-406-07 | — | — |
| WORCESTER BRITISH GAS GREENSTAR 542/I COMBI NG | 47-406-06 | 47-406-06 | — | — |
| WORCESTER GREENSTAR 12i ErP SYSTEM LPG | 41-406-24 | 41-406-24 | — | — |
| WORCESTER GREENSTAR 12i ErP SYSTEM NG | 41-406-23 | 41-406-23 | — | — |
Showing 10 of 141 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
WORCESTER appliance manual — BRITISH GAS 430/I (GC 41-311-80), BRITISH GAS GREENSTAR 430/I SYSTEM LPG (GC 41-311-81)
manualmanualWORCESTER appliance manual — BRITISH GAS GREENSTAR 532/I COMBI LPG (GC 47-406-03), BRITISH GAS GREENSTAR 532/I COMBI NG (GC 47-406-02), BRITISH GAS GREENSTAR 537/I COMBI LPG (GC 47-406-05), BRITISH GAS GREENSTAR 537/I COMBI NG (GC 47-406-04), BRITISH GAS GREENSTAR 542/I COMBI LPG (GC 47-406-07), BRITISH GAS GREENSTAR 542/I COMBI NG (GC 47-406-06)
manualmanualWORCESTER appliance manual — GREENSTAR 12i ErP SYSTEM LPG (GC 41-406-24), GREENSTAR 12i ErP SYSTEM NG (GC 41-406-23), GREENSTAR 15i ErP SYSTEM LPG (GC 41-406-26), GREENSTAR 15i ErP SYSTEM NG (GC 41-406-25), GREENSTAR 18i ErP SYSTEM LPG (GC 41-406-28), GREENSTAR 18i ErP SYSTEM NG (GC 41-406-27), GREENSTAR 21i ErP SYSTEM LPG (GC 41-406-30), GREENSTAR 21i ErP SYSTEM NG (GC 41-406-29), GREENSTAR 24i ErP SYSTEM LPG (GC 41-406-32), GREENSTAR 24i ErP SYSTEM NG (GC 41-406-31), GREENSTAR 9i ErP SYSTEM LPG (GC 41-406-22), GREENSTAR 9i ErP SYSTEM NG (GC 41-406-21)
manualmanualWORCESTER appliance manual — GREENSTAR 12i SYSTEM LPG (GC 41-311-69), GREENSTAR 12i SYSTEM NG (GC 41-311-67), GREENSTAR 15I SYSTEM LPG (GC 41-406-26), GREENSTAR 15I SYSTEM NG (GC 41-311-84), GREENSTAR 18I SYSTEM LPG (GC 41-311-87), GREENSTAR 18I SYSTEM NG (GC 41-311-86), GREENSTAR 24i SYSTEM LPG (GC 41-311-70), GREENSTAR 24i SYSTEM NG (GC 41-311-68)
manualmanualWORCESTER appliance manual — GREENSTAR 24I JUNIOR MK5 LPG (GC 47-406-55), GREENSTAR 24I JUNIOR MK5 NG (GC 47-406-54), GREENSTAR 24I JUNIOR NG (GC 47-311-86), GREENSTAR 24i JUNIOR LPG (GC 47-311-90), GREENSTAR 28I JUNIOR MK5 LPG (GC 47-406-57), GREENSTAR 28I JUNIOR MK5 NG (GC 47-406-56), GREENSTAR 28i JUNIOR LPG (GC 47-311-91), GREENSTAR 28i JUNIOR NG (GC 47-311-87)
manualmanualWORCESTER appliance manual — GREENSTAR 25CDI EMS COMBI NG (GC 47-311-92), GREENSTAR 25CDI ENS COMBI LPG (GC 47-311-96), GREENSTAR 25CDI PRE EMS COMBI NG (GC 47-311-92), GREENSTAR 30CDI NEW EMS LPG (GC 47-311-97), GREENSTAR 30CDI NEW EMS NG (GC 47-311-93), GREENSTAR 30CDI OLD EMS LPG (GC 47-311-97), GREENSTAR 30CDI OLD EMS NG (GC 47-311-93), GREENSTAR 30CDI PRE EMS COMBI NG (GC 47-311-93), GREENSTAR 35CDI EMS LPG COMBI (GC 47-311-98), GREENSTAR 35CDI EMS NG COMBI (GC 47-311-94), GREENSTAR 35CDI PRE EMS NG COMBI (GC 47-311-94), GREENSTAR 40CDI EMS COMBI LPG (GC 47-406-01), GREENSTAR 40CDI EMS COMBI NG (GC 47-311-95), GREENSTAR 40CDI PRE EMS NG (GC 47-311-95)
manualmanualWORCESTER appliance manual — GREENSTAR 25SI COMBI LPG (GC 47-311-88), GREENSTAR 25SI COMBI NG (GC 47-311-84), GREENSTAR 30 SI COMBI LPG (GC 47-311-89), GREENSTAR 30 SI COMBI NG (GC 47-311-85)
manualmanualWORCESTER appliance manual — GREENSTAR 25i ErP COMBI LPG (GC 47-406-61), GREENSTAR 25i ErP COMBI NG (GC 47-406-60), GREENSTAR 30i ErP COMBI LPG (GC 47-406-63), GREENSTAR 30i ErP COMBI NG (GC 47-406-62)
manualmanualWORCESTER appliance manual — GREENSTAR 27CDI EMS COMBI LPG (GC 47-406-13), GREENSTAR 27CDI EMS COMBI NG (GC 47-406-12), GREENSTAR 37CDI EMS COMBI LPG (GC 47-406-09), GREENSTAR 37CDI EMS COMBI NG (GC 47-406-08), GREENSTAR 42CDI CLASSIC COMBI LPG (GC 47-406-11), GREENSTAR 42CDI CLASSIC COMBI NG (GC 47-406-10)
manualmanualWORCESTER appliance manual — GREENSTAR 29CDI CLASSIC COMBI LPG (GC 47-406-35), GREENSTAR 29CDI CLASSIC COMBI NG (GC 47-406-34), GREENSTAR 34CDI CLASSIC COMBI LPG (GC 47-406-37), GREENSTAR 34CDI CLASSIC COMBI NG (GC 47-406-36), GREENSTAR 38CDI CLASSIC COMBI LPG (GC 47-406-39), GREENSTAR 38CDI CLASSIC COMBI NG (GC 47-406-38)
manualmanualWORCESTER appliance manual — GREENSTAR 29CDI ErP CLASSIC LPG (GC 47-406-66), GREENSTAR 29CDI ErP CLASSIC NG (GC 47-406-65), GREENSTAR 34CDI ErP CLASSIC LPG (GC 47-406-68), GREENSTAR 34CDI ErP CLASSIC NG (GC 47-406-67), GREENSTAR 38CDI ErP CLASSIC LPG (GC 47-406-70), GREENSTAR 38CDI ErP CLASSIC NG (GC 47-406-69), GREENSTAR 42CDI ErP CLASSIC LPG (GC 47-406-72), GREENSTAR 42CDI ErP CLASSIC NG (GC 47-406-71)
manualmanualWORCESTER appliance manual — GREENSTAR 30CDI ErP CLASSIC LPG (GC 41-406-38), GREENSTAR 30CDI ErP CLASSIC NG (GC 41-406-37)
manualmanualWORCESTER appliance manual — GREENSTAR 30CDI SYSTEM LPG (GC 41-311-97), GREENSTAR 30CDI SYSTEM NG (GC 41-311-93)
manualmanualWORCESTER appliance manual — GREENSTAR 35CDI ErP CLASSIC SYSTEM LPG (GC 41-406-40), GREENSTAR 35CDI ErP CLASSIC SYSTEM NG (GC 41-406-39)
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