
Worcester Bosch
Worcester Bosch Seal Burner 87186507890
Burner gasket for Worcester Bosch Greenstar 2000 and 4000 series gas boilers.
At a glance
- Appliance family: Greenstar 2000 and Greenstar 4000 series
- Also known as 1011004
£18.62
£15.52 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
The SEAL BURNER, part number 87186507890, is a burner gasket manufactured by Worcester Bosch. It seals the joint between the burner and the heat exchanger on Greenstar 2000 and 4000 series gas boilers, preventing combustion gases from escaping at the mating face. The gasket is a service item and should be renewed whenever the burner is removed.
Signs this part needs replacing
- Visible scorching, hardening or cracking of the gasket material
- Combustion gas smell or flue gas leakage around the burner face
- Gasket stuck to or torn from the burner or heat exchanger on removal
- Burner removed for cleaning or inspection, requiring a new seal on refit
Before you order
- Confirm the boiler model and GC number against the fit list
- Check the appliance is a Greenstar 2000 or 4000 series variant
- Verify the existing gasket is removed cleanly before fitting the new one
- Confirm the gas type (NG or LPG) matches your installation
Compliance
| Alternative numbers | 1011004 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C LPG | 47-800-27 | 47-800-27 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 25 C NG | 47-800-26 | 47-800-26 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C LPG | 47-800-29 | 47-800-29 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C NG | 47-800-28 | 47-800-28 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C LPG | 47-800-35 | 47-800-35 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C NG | 47-800-34 | 47-800-34 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C LPG | 47-800-37 | 47-800-37 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C NG | 47-800-36 | 47-800-36 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 25 C LPG | 47-800-31 | 47-800-31 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 25 C NG | 47-800-30 | 47-800-30 | — | — |
Showing 10 of 44 compatible appliances.
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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