Worcester Bosch
Worcester Bosch O-Ring 6,60X2,4 EPDM-70 WRAS / KTW 871861779A0
Worcester Bosch O-ring, 6,60 x 2,4 mm, EPDM-70, WRAS / KTW approved, part number 871861779A0.
At a glance
- Also known as 2246349
£6.68
£5.57 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 O-RING 6,60X2,4 EPDM-70 WRAS / KTW is a sealing O-ring supplied by Worcester Bosch under part number 871861779A0. It is manufactured in EPDM-70 compound and carries WRAS / KTW approval for use in contact with potable water. It is used to seal a joint within the Worcester Greenstar 4000 System range of gas boilers.
Signs this part needs replacing
- Water weeping or a visible damp track around the joint the O-ring seals
- The O-ring has hardened, flattened or cracked with age and no longer sits proud of its groove
- Persistent pressure loss traced to a joint rather than the heat exchanger or pipework
- Dark staining or scale build-up on or around the seal seating
Before you order
- Confirm the existing O-ring dimensions match 6,60 x 2,4 mm before ordering
- Check the part number 871861779A0 against the appliance's own documentation or the failed component
- Verify the EPDM-70 material and WRAS / KTW approval suit the water contact application on your appliance
- Inspect the sealing groove and mating face for scoring or corrosion, as these will shorten the life of any new seal
Compliance
| Alternative numbers | 2246349 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| 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 GR4700iW 12 S LPG SYSTEM | 41-800-08 | 41-800-08 | — | — |
| WORCESTER GREENSTAR GR4700iW 12 S NG SYSTEM | 41-800-07 | 41-800-07 | — | — |
| WORCESTER GREENSTAR GR4700iW 15 S LPG SYSTEM | 41-800-10 | 41-800-10 | — | — |
| WORCESTER GREENSTAR GR4700iW 15 S NG SYSTEM | 41-800-09 | 41-800-09 | — | — |
Documents & drawings
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