Worcester Bosch
Worcester Bosch Lead Seal Pack of 10 87123050920
Worcester Bosch 87123050920 lead seal, supplied as a pack of 10, for the gas pipe test cover on Greenstar and British Gas-badged boiler models.
At a glance
- Part type: Lead seal (gaskets, seals and O-rings)
- Also known as 1012737
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Showing prices
£2.06
£1.72 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 87123050920 is a lead seal used on the gas pipe test cover of Worcester Bosch and Worcester British Gas-badged boilers. It forms a tight joint at the test point, keeping the gas path sealed and preventing leakage during normal operation. The seal is a service item, so it is commonly renewed when the cover is opened for inspection or repair.
Signs this part needs replacing
- Visible weeping or staining around the gas pipe test cover joint
- Seal flattened, hardened or cracked after time in service
- Damp patches or corrosion on the surrounding pipework or casing
- Seal disturbed or damaged while the cover is removed for servicing
- Repeated pressure loss that points to a joint rather than a component fault
Before you order
- Check the GC number and the appliance data plate to confirm the model before ordering
- Compare any number stamped on the old seal against 8-716-117-348 and 8716117348
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | LEAD SEAL |
|---|
Compliance
| Manufacturer part number (MPN) | 87123050920 |
|---|---|
| GC number | E74-546 |
| Barcode / EAN | 4010009617808 |
| Commodity code | 7806 00 80 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | LEAD-SEAL-10X, 8-716-117-348, 1012737 |
| 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 BRITISH GAS GREENSTAR CC1-FSN-GB NG 29KW COMBI | 47-108-05 | 47-108-05 | — | — |
| WORCESTER BRITISH GAS GREENSTAR GREENSTAR HE PLUS-FSN- GB28KW | 47-311-56 | 47-311-56 | — | — |
Showing 10 of 222 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 — BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 30KW COND COM (GC 41-108-09), BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 37KW COND COM (GC 41-108-10)
manualmanualWORCESTER appliance manual — CS1 RSF 28KW NG (GC 41-108-02)
manualmanualWORCESTER appliance manual — GREENSTAR 12RI LPG (GC 41-311-64), GREENSTAR 12RI NG (GC 41-311-63), GREENSTAR 15RI CONVENTIONAL LPG (GC 41-311-76), GREENSTAR 15RI CONVENTIONAL NG (GC 41-311-75), GREENSTAR 18RI CONVENTIONAL LPG (GC 41-311-78), GREENSTAR 18RI CONVENTIONAL NG (GC 41-311-77), GREENSTAR 24RI LPG (GC 41-311-66), GREENSTAR 24RI NG (GC 41-311-65)
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 NG (GC 47-311-86), GREENSTAR 24i JUNIOR LPG (GC 47-311-90), GREENSTAR 28i JUNIOR LPG (GC 47-311-91), GREENSTAR 28i JUNIOR NG (GC 47-311-87)
manualmanualWORCESTER appliance manual — GREENSTAR 25 HE (GC 47-311-73), GREENSTAR 30 HE COMBI (GC 47-311-74)
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 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 28 HE SYSTEM (GC 41-311-58)
manualmanualWORCESTER appliance manual — GREENSTAR 29 HE CONVENTIONAL (JAN 2003) (GC 41-311-59), GREENSTAR 29 HE CONVENTIONAL (JUN 2002) (GC 41-311-56)
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 30 HE PLUS COMBI (GC 47-311-75), GREENSTAR 35 HE PLUS COMBI (GC 47-311-76), GREENSTAR HE PLUS-FSN-GB35KW (GC 47-311-57)
manualmanualWORCESTER appliance manual — GREENSTAR 30CDI CONVENTIONAL LPG (GC 41-311-73), GREENSTAR 30CDI CONVENTIONAL NG (GC 41-311-71), GREENSTAR 40CDI CONVENTIONAL LPG (GC 41-311-74), GREENSTAR 40CDI CONVENTIONAL NG (GC 41-311-72)
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 ErP CLASSIC REGULAR LPG (GC 41-406-34), GREENSTAR 30CDI ErP CLASSIC REGULAR NG (GC 41-406-33), GREENSTAR 40CDI ErP CLASSIC REGULAR LPG (GC 41-406-36), GREENSTAR 40CDI ErP CLASSIC REGULAR NG (GC 41-406-35)
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)
manualmanualWORCESTER appliance manual — GREENSTAR FS 30CDi ErP REGULAR LPG (GC 41-406-63), GREENSTAR FS 30CDi ErP REGULAR NG (GC 41-406-62), GREENSTAR FS 42CDi ErP REGULAR LPG (GC 41-406-65), GREENSTAR FS 42CDi ErP REGULAR NG (GC 41-406-64)
manualmanualWORCESTER appliance manual — GREENSTAR FS30 CDI REGULAR (GC 41-406-62), GREENSTAR FS30 CDI REGULAR LPG (GC 41-406-63), GREENSTAR FS42 CDI REGULAR (GC 41-406-64), GREENSTAR FS42 CDI REGULAR LPG (GC 41-406-65)
manualmanualWORCESTER appliance manual — GREENSTAR HIGHFLOW 440 (GC 47-311-82)
manualmanualWORCESTER appliance manual — GREENSTAR HIGHFLOW 440CDI LPG (GC 47-406-26), GREENSTAR HIGHFLOW 440CDI NG (GC 47-406-24), GREENSTAR HIGHFLOW 550CDI LPG (GC 47-406-25), GREENSTAR HIGHFLOW 550CDI NG (GC 47-406-27)
manualmanualWORCESTER appliance manual — GREENSTAR HIGHFLOW 440CDi ErP LPG (7731600099) (GC 47-406-90), GREENSTAR HIGHFLOW 440CDi ErP NG (7731600098) (GC 47-406-89), GREENSTAR HIGHFLOW 550CDi ErP LPG (7731600101) (GC 47-406-92), GREENSTAR HIGHFLOW 550CDi ErP NG (7731600100) (GC 47-406-91)
manualmanualWORCESTER appliance manual — GREENSTAR HIGHFLOW 440CDi ErP LPG (7738100590) (GC 47-406-86), GREENSTAR HIGHFLOW 440CDi ErP NG (7738100589) (GC 47-406-85), GREENSTAR HIGHFLOW 550CDi ErP LPG (7738100592) (GC 47-406-88), GREENSTAR HIGHFLOW 550CDi ErP NG (7738100591) (GC 47-406-87)
manualmanualWORCESTER appliance manual — GREENSTAR R25HE COMBI (GC 47-311-77), GREENSTAR R30HE COMBI (GC 47-311-78)
manualmanualWORCESTER appliance manual — GREENSTAR R28HE SYSTEM (GC 41-311-62)
manualmanualWORCESTER appliance manual — GREENSTAR R29HE CONVENTIONAL (GC 41-311-60), GREENSTAR R40HE CONVENTIONAL (GC 41-311-61)
manualNo technical questions yet for this part.
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