Worcester Bosch
Worcester Bosch Diverter Valve Assembly Mixer Module 87161068450
At a glance
- Part type: Diverter valve assembly / mixer module
- Appliance family: Greenstar and Greenstar ErP
- Also known as WB87161068450, 1015099, N9101
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£140.00
£116.67 ex. VAT · VAT at 20%
In stock
Order within 15h 22m for same-day dispatch
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Worcester Bosch mixer module diverter valve assembly is a hydraulic component used in Greenstar and Greenstar ErP boilers. It sits within the boiler's water circuit and directs the flow of heated water either into the central heating system or into the domestic hot water circuit. On a combi appliance this switching action is what allows the boiler to supply both heating and hot water on demand without a separate storage cylinder.
Signs this part needs replacing
- Domestic hot water runs cold or only lukewarm while the heating circuit works normally
- Heating circuit warms when only hot water is called for, or hot water is produced when only heating is demanded
- Radiators stay cold while the boiler fires for a hot water demand
- Diverter valve sticking, with the boiler cycling between heating and hot water modes
- Reduced or inconsistent hot water temperature at the tap
Before you order
- Check the GC number on the appliance data badge against the numbers listed for this part before ordering.
- Confirm the model and serial number of the boiler, as this assembly is used across a large number of Greenstar and Greenstar ErP variants.
- Check whether a gasket or seal kit is needed for the joint being disturbed during the swap.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Diverter & Motorised Valves |
|---|---|
| Appliance family | Greenstar, Greenstar ErP |
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87161068450 |
|---|---|
| GC number | H02-533 |
| Barcode / EAN | 4010009876175 |
| Commodity code | 8481 80 90 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 4010009876175, WB87161068450, 251980925356, 43375872, 1015099, N9101 |
| 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 SYSTEM LPG | 41-311-69 | 41-311-69 | — | — |
| WORCESTER GREENSTAR 12i SYSTEM NG | 41-311-67 | 41-311-67 | — | — |
Showing 10 of 289 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 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 25SI COMPACT LPG (GC 47-406-51), GREENSTAR 25SI COMPACT NG (GC 47-406-50), GREENSTAR 30 SI COMPACT LPG (GC 47-406-53), GREENSTAR 30 SI COMPACT NG (GC 47-406-52)
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 27I COMPACT SYSTEM LPG (GC 41-406-14), GREENSTAR 27I COMPACT SYSTEM NG (GC 41-406-13), GREENSTAR 30I COMPACT SYSTEM LPG (GC 41-406-16), GREENSTAR 30I COMPACT SYSTEM NG (GC 41-406-15)
manualmanualWORCESTER appliance manual — GREENSTAR 28 CDI COMPACT LPG (GC 47-406-45), GREENSTAR 28 CDI COMPACT NG (GC 47-406-44)
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 32CDI COMPACT LPG (GC 47-406-47), GREENSTAR 32CDI COMPACT NG (GC 47-406-46), GREENSTAR 36CDI COMPACT LPG (GC 47-406-49), GREENSTAR 36CDI COMPACT NG (GC 47-406-48)
manualmanualWORCESTER appliance manual — GREENSTAR 35CDI ErP CLASSIC SYSTEM LPG (GC 41-406-40), GREENSTAR 35CDI ErP CLASSIC SYSTEM NG (GC 41-406-39)
manualmanualWORCESTER appliance manual — GREENSTAR 8000 LIFE COMBI GR8300iW 30 C LPG, GREENSTAR 8000 LIFE COMBI GR8300iW 30 C NG (GC 47-800-18), GREENSTAR 8000 LIFE COMBI GR8300iW 35 C LPG, GREENSTAR 8000 LIFE COMBI GR8300iW 35 C NG (GC 47-800-17), GREENSTAR 8000 LIFE COMBI GR8300iW 40 C LPG, GREENSTAR 8000 LIFE COMBI GR8300iW 40 C NG (GC 47-800-16), GREENSTAR 8000 LIFE COMBI GR8300iW 45 C LPG, GREENSTAR 8000 LIFE COMBI GR8300iW 45 C NG (GC 47-800-15), GREENSTAR 8000 LIFE COMBI GR8300iW 50 C LPG, GREENSTAR 8000 LIFE COMBI GR8300iW 50 C NG (GC 47-800-14), GREENSTAR LIFE GR8300iW 30 C LPG, GREENSTAR LIFE GR8300iW 30 C NG (GC 47-800-18), GREENSTAR LIFE GR8300iW 35 C LPG, GREENSTAR LIFE GR8300iW 35 C NG (GC 47-800-17), GREENSTAR LIFE GR8300iW 40 C LPG, GREENSTAR LIFE GR8300iW 40 C NG (GC 47-800-16), GREENSTAR LIFE GR8300iW 45 C LPG, GREENSTAR LIFE GR8300iW 45 C NG (GC 47-800-15), GREENSTAR LIFE GR8300iW 50 C LPG, GREENSTAR LIFE GR8300iW 50 C NG (GC 47-800-14)
manualmanualWORCESTER appliance manual — GREENSTAR 8000 LIFE REGULAR GR8300iW 30 R LPG, GREENSTAR 8000 LIFE REGULAR GR8300iW 30 R NG (GC 41-406-98), GREENSTAR 8000 LIFE REGULAR GR8300iW 35 R LPG, GREENSTAR 8000 LIFE REGULAR GR8300iW 35 R NG (GC 41-406-97), GREENSTAR 8000 LIFE REGULAR GR8300iW 40 R LPG, GREENSTAR 8000 LIFE REGULAR GR8300iW 40 R NG (GC 41-406-96), GREENSTAR 8000 LIFE REGULAR GR8300iW 45 R LPG, GREENSTAR 8000 LIFE REGULAR GR8300iW 45 R NG (GC 41-406-95), GREENSTAR 8000 LIFE REGULAR GR8300iW 50 R LPG, GREENSTAR 8000 LIFE REGULAR GR8300iW 50 R NG (GC 41-406-94), GREENSTAR LIFE GR8300iW 30 R LPG, GREENSTAR LIFE GR8300iW 30 R NG (GC 41-406-98), GREENSTAR LIFE GR8300iW 35 R LPG, GREENSTAR LIFE GR8300iW 35 R NG (GC 41-406-97), GREENSTAR LIFE GR8300iW 40 R LPG, GREENSTAR LIFE GR8300iW 40 R NG (GC 41-406-96), GREENSTAR LIFE GR8300iW 45 R LPG, GREENSTAR LIFE GR8300iW 45 R NG (GC 41-406-95), GREENSTAR LIFE GR8300iW 50 R LPG, GREENSTAR LIFE GR8300iW 50 R NG (GC 41-406-94)
manualmanualWORCESTER 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 COMBI GR8700iW 30 C LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 30 C NG (GC 47-800-03), GREENSTAR 8000+ STYLE COMBI GR8700iW 30 CB LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 30 CB NG (GC 47-406-97), GREENSTAR 8000+ STYLE COMBI GR8700iW 35 C LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 35 C NG (GC 47-800-02), GREENSTAR 8000+ STYLE COMBI GR8700iW 35 CB LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 35 CB NG (GC 47-406-96), GREENSTAR 8000+ STYLE COMBI GR8700iW 40 C LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 40 C NG (GC 47-800-01), GREENSTAR 8000+ STYLE COMBI GR8700iW 40 CB LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 40 CB NG (GC 47-406-95), GREENSTAR 8000+ STYLE COMBI GR8700iW 45 C LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 45 C NG (GC 47-406-99), GREENSTAR 8000+ STYLE COMBI GR8700iW 45 CB LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 45 CB NG (GC 47-406-94), GREENSTAR 8000+ STYLE COMBI GR8700iW 50 C LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 50 C NG (GC 47-406-98), GREENSTAR 8000+ STYLE COMBI GR8700iW 50 CB LPG, GREENSTAR 8000+ STYLE COMBI GR8700iW 50 CB NG (GC 47-406-93), 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 C LPG, GREENSTAR STYLE GR8700iW 30 C NG (GC 47-800-03), GREENSTAR STYLE GR8700iW 30 CB LPG, GREENSTAR STYLE GR8700iW 30 CB NG (GC 47-406-97), 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 C LPG, GREENSTAR STYLE GR8700iW 35 C NG (GC 47-800-02), GREENSTAR STYLE GR8700iW 35 CB LPG, GREENSTAR STYLE GR8700iW 35 CB NG (GC 47-406-96), 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), GREENSTAR STYLE GR8700iW 40 C LPG, GREENSTAR STYLE GR8700iW 40 C NG (GC 47-800-01), GREENSTAR STYLE GR8700iW 40 CB LPG, GREENSTAR STYLE GR8700iW 40 CB NG (GC 47-406-95), GREENSTAR STYLE GR8700iW 45 C LPG, GREENSTAR STYLE GR8700iW 45 C NG (GC 47-406-99), GREENSTAR STYLE GR8700iW 45 CB LPG, GREENSTAR STYLE GR8700iW 45 CB NG (GC 47-406-94), GREENSTAR STYLE GR8700iW 50 C LPG, GREENSTAR STYLE GR8700iW 50 C NG (GC 47-406-98), GREENSTAR STYLE GR8700iW 50 CB LPG, GREENSTAR STYLE GR8700iW 50 CB NG (GC 47-406-93)
manualNo technical questions yet for this part.
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Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.