Glow-worm
Glow-worm Gasket S1046900
Glow-worm gasket, part number S1046900, for use on the Xtramax HE gas boiler.
At a glance
- Part type: gasket / washer
- Appliance family: Xtramax HE
- Also known as 1337487
Showing prices
£13.43
£11.19 ex. VAT · VAT at 20%
Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
A Glow-worm gasket supplied under part number S1046900. It is listed within the O-rings, washers and gaskets category of Glow-worm gas boiler spares. The gasket forms a seal at the joint it is fitted to on the Xtramax HE appliance.
Signs this part needs replacing
- Water or gas traces, staining or weeping around the joint the gasket seals
- The gasket is visibly hardened, brittle or cracked
- The gasket has flattened and no longer sits proud of its seating
- A leak appears at the joint after the appliance has been serviced or stripped down
- The gasket is damaged or deformed on removal
Before you order
- Check the appliance data badge to confirm the model is an Xtramax HE
- Confirm the part number S1046900 matches the number on the existing component or the manufacturer's parts list
- Check whether the gasket is a single-use item for the joint being worked on, and replace it whenever that joint is disturbed
- Confirm the quantity required for the joint before ordering
Compliance
| Alternative numbers | 1337487 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM XTRAMAX HE | 47-047-29 | 47-047-29 | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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 technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.