Worcester Bosch
Worcester Bosch O-Ring 87161074400
A Worcester Bosch O-ring measuring 7.75 mm x 2.1 mm, used to seal connections in Greenstar gas boilers.
At a glance
- Appliance family: Greenstar gas boilers
- Also known as 1021083
Showing prices
£0.88
£0.73 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 87161074400 is an O-ring with dimensions 7.75 mm x 2.1 mm, supplied singly. It is used in Greenstar gas boilers to create a seal at internal connections, helping to prevent leaks of water or gas. As a small but critical component, it should be replaced whenever the joint it seals is disturbed or shows signs of deterioration.
Signs this part needs replacing
- Visible cracking, flattening or hardening of the O-ring
- Water or gas weeping from the joint it seals
- Persistent drips or damp patches around the sealed connection
- Loss of system pressure requiring frequent top-ups
- Discolouration or swelling of the O-ring material
Before you order
- Confirm the part number 87161074400 matches your appliance's parts list
- Check the O-ring dimensions (7.75 mm x 2.1 mm) against the one removed
- Verify your boiler model against the fitment list above
- Ensure safe isolation and correct tools before fitting
Compliance
| GC number | H75-709 |
|---|---|
| Barcode / EAN | 4047416921556 |
| Alternative numbers | 1021083 |
| 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 252 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 25Si ErP COMPACT LPG (GC 47-407-74), GREENSTAR 25Si ErP COMPACT NG (GC 47-406-73), GREENSTAR 28Si ErP COMPACT, GREENSTAR 30Si ErP COMPACT LPG (GC 47-406-76), GREENSTAR 30Si ErP COMPACT NG (GC 47-406-75)
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 27Ri ErP COMPACT LPG (GC 41-406-55), GREENSTAR 27Ri ErP COMPACT NG (GC 41-406-54), GREENSTAR 30Ri ErP COMPACT LPG (GC 41-406-57), GREENSTAR 30Ri ErP COMPACT NG (GC 41-406-56)
manualmanualWORCESTER appliance manual — GREENSTAR 27i ErP SYSTEM COMPACT LPG (GC 41-406-59), GREENSTAR 27i ErP SYSTEM COMPACT NG (GC 41-406-58), GREENSTAR 30i ErP SYSTEM COMPACT LPG (GC 41-406-61), GREENSTAR 30i ErP SYSTEM COMPACT NG (GC 41-406-60)
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 28CDi ErP COMPACT LPG (GC 47-406-78), GREENSTAR 28CDi ErP COMPACT NG (GC 47-406-77), GREENSTAR 32CDi ErP COMPACT LPG (GC 47-406-80), GREENSTAR 32CDi ErP COMPACT NG (GC 47-406-79), GREENSTAR 36CDi ErP COMPACT LPG (GC 47-406-82), GREENSTAR 36CDi ErP COMPACT NG (GC 47-406-81)
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+ 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 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 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 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)
manualmanualWORCESTER appliance manual — GREENSTAR HE PLUS-FSN-GB35KW (GC 47-311-57)
manualmanualWORCESTER appliance manual — GREENSTAR HEATSLAVE II 12/18 ErP, GREENSTAR HEATSLAVE II 18/25 ErP, GREENSTAR HEATSLAVE II 25/32 ErP
manualmanualWORCESTER appliance manual — GREENSTAR HEATSLAVE II EXT 12/18 ErP, GREENSTAR HEATSLAVE II EXT 18/25 ErP, GREENSTAR HEATSLAVE II EXT 25/32 ErP
manualmanualWORCESTER appliance manual — GREENSTAR RI 27KW COMPACT LPG (GC 41-406-18), GREENSTAR RI 27KW COMPACT NG (GC 41-406-17), GREENSTAR Ri 30KW COMPACT LPG (GC 41-406-20), GREENSTAR Ri 30KW COMPACT NG (GC 41-406-19)
manualNo technical questions yet for this part.
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