Worcester Bosch
Worcester Bosch Backnut 3/8 Inch 87186810930
A 3/8 inch backnut for Worcester Bosch Greenstar oil boilers, used to secure a threaded connection.
At a glance
- Also known as 1022626
£9.72
£8.10 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 87186810930 is a 3/8 inch backnut used on Greenstar oil boiler installations. It secures a threaded connection, locking the fitting in place against the appliance casing or pipework. This small fastening component helps maintain a leak-free joint.
Signs this part needs replacing
- Visible corrosion or rust on the backnut
- Weeping or dripping at the threaded connection
- Rounded flats on the nut, making it difficult to tighten or loosen
- The joint feels loose or the fitting moves when touched
- Water or oil residue around the nut
Before you order
- Confirm your boiler model matches one of the fit lines above
- Check the existing backnut is 3/8 inch
- Verify the part number 87186810930 on the old component or in the appliance manual
Compliance
| Barcode / EAN | 4047416663845 |
|---|---|
| Alternative numbers | 1022626 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 12/18 OOO GB OIL | — | — | — | |
| WORCESTER GREENSTAR 18/25 OOO GB OIL | — | — | — |
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.
No technical questions yet for this part.
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