Worcester Bosch
Worcester Bosch O-Ring 12,37X2,62 8738903402
Worcester Bosch O-ring 8738903402, sized 12,37 x 2,62 mm, supplied in a pack of 10 for Greenstar 1000 Series appliances.
At a glance
- Also known as 1038329
£8.35
£6.96 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 Worcester Bosch O-ring 12,37X2,62 is a circular elastomeric seal used to prevent water or gas leakage at a mating joint within the appliance. It is manufactured by Worcester Bosch for use in the Greenstar 1000 Series boiler family. The O-ring forms a compression seal between two joined components when the assembly is tightened.
Signs this part needs replacing
- Visible water weep or damp staining around the joint the O-ring seals
- The O-ring is cracked, split or visibly perished
- The O-ring has hardened or flattened and no longer sits proud of its groove
- A joint that continues to seep after the assembly has been correctly tightened
Before you order
- Confirm the appliance model matches one of the Greenstar 1000 Series Gr1000W variants listed above
- Check the existing O-ring cross-section and bore against the 12,37 x 2,62 mm size
- Verify the manufacturer part number 8738903402 against the marking on the old component or the appliance parts list
Compliance
| Alternative numbers | 1038329 |
|---|
| 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 GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — |
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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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