
Worcester Bosch
Worcester Bosch O-Ring 9,5X2,5 (10X) 8737713709
Worcester Bosch O-ring 9,5x2,5 mm, supplied in a pack of 10, for use on compatible Greenstar gas boilers.
At a glance
- Also known as 1038449
£5.42
£4.52 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 O-RING 9,5X2,5 (10X) is a Worcester Bosch sealing O-ring with an internal diameter of 9,5 mm and a cross-section of 2,5 mm. It is supplied in a pack of 10 and is used to seal joints and connections on compatible Worcester Greenstar gas boilers, preventing water or gas weeping at the fitted point. The O-ring is a service part intended for renewal when the existing seal has hardened, flattened or perished.
Signs this part needs replacing
- Visible water weeping or a damp trace around a sealed joint or connection
- The O-ring has hardened, flattened or lost its elasticity
- Cracking, splitting or deformation visible on the ring
- Discolouration or scale build-up on the seal surface
- A joint that continues to weep after the housing has been tightened correctly
Before you order
- Confirm the appliance model is listed in the Fits section above
- Check the existing O-ring dimensions (9,5 mm internal diameter, 2,5 mm cross-section) against the failed part
- Note that this item is supplied as a pack of 10, so only one pack is normally needed per repair
- Check the manufacturer part number 8737713709 against the part reference on the appliance or in its documentation
Compliance
| Alternative numbers | 1038449 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 1000 SERIES GR1000W 24 C NG | 47-800-38 | 47-800-38 | — | — |
| WORCESTER GREENSTAR 1000 SERIES GR1000W 30 C NG | 47-800-39 | 47-800-39 | — | — |
| 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 GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C LPG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C NG COMBI | — | — | — |
Showing 10 of 12 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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