Worcester Bosch
Worcester Bosch Seal 70MM 87379027500
Worcester Bosch 70MM seal, part number 87379027500, for Greenstar 2000 and 4000 combi and system boilers.
At a glance
- Appliance family: Greenstar 2000 and Greenstar 4000
- Also known as 1038237
- Any work on gas-carrying or combustion components must be carried out by a Gas Safe registered engineer
£15.37
£12.81 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 70MM is a Worcester Bosch sealing component supplied under part number 87379027500. It is used within the Greenstar 2000 and Greenstar 4000 appliance families, covering both combi and system models. Its role is to seal a joint or connection within the appliance so that water cannot escape past the mating faces.
Signs this part needs replacing
- Visible water weeping or a drip track at the joint the seal serves
- The seal has hardened, flattened or cracked and no longer sits proud of its groove
- Scale or corrosion deposits around the sealing face
- Repeated loss of system pressure that traces back to the sealed joint
Before you order
- Confirm the part number 87379027500 against the parts list for your exact appliance model
- Check the seal size and application against the component being replaced, as the 70MM designation relates to this specific seal
- Any work on gas-carrying or combustion components must be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | 1038237 |
|---|
| 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
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