Worcester Bosch
Worcester Bosch Gasket Venturi Casing 7746900441
Worcester Bosch venturi casing gasket, part 7746900441, for Greenstar 4000 Combi and System Gr4700IW boilers.
At a glance
- Also known as 2248872
£2.57
£2.14 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 Gasket Venturi Casing is a Worcester Bosch sealing component for the venturi assembly on Greenstar 4000 series boilers. It sits at the casing joint, sealing the mating faces of the venturi housing. It is supplied under Worcester Bosch part number 7746900441.
Signs this part needs replacing
- Hardening, flattening or splitting of the gasket material
- Staining or residue around the venturi casing joint
- Whistling or unusual noise from the venturi area
- Combustion readings drifting outside the expected range
- Visible leakage at the casing mating face
Before you order
- Confirm the appliance model and GC number against the fit list above
- Check that part number 7746900441 matches the existing component or the appliance documentation
- Inspect the venturi casing mating faces for damage before fitting the new gasket
- Follow the manufacturer's procedure for gas-carrying joints, including leak testing after reassembly
Compliance
| Alternative numbers | 2248872 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| 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 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 30 C LPG | 47-800-33 | 47-800-33 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 30 C NG | 47-800-32 | 47-800-32 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S LPG | 41-800-08 | 41-800-08 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S NG | 41-800-07 | 41-800-07 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S LPG | 41-800-10 | 41-800-10 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S NG | 41-800-09 | 41-800-09 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S LPG | 41-800-12 | 41-800-12 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S NG | 41-800-11 | 41-800-11 | — | — |
Showing 10 of 28 compatible appliances.
Documents & drawings
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