Baxi
Baxi O-Ring 2mm x 16mm 5111384
Baxi 5111384 O-ring measuring 2mm x 16mm, for use in Combi Instant 105HE and 80HE appliances.
At a glance
- Part type: O-ring
- Appliance family: Baxi Combi Instant
- Also known as 1117875
Showing prices
£19.46
£16.22 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
The Baxi 5111384 is an O-ring measuring 2mm x 16mm, manufactured by Baxi for use in Combi Instant appliances. It forms a watertight seal at the joint where it is fitted, preventing leakage from the sealed connection.
Signs this part needs replacing
- Water weeping or a damp trace around the joint the O-ring seals
- Visible cracking, perishing or flattening of the ring
- Scale or debris build-up on the ring surface
- Recurring pressure loss traced to the sealed joint
Before you order
- Check the appliance data badge to confirm the model and GC number
- Compare the dimensions of the removed O-ring against 2mm x 16mm
- Check whether the joint uses more than one O-ring before ordering
Compliance
| GC number | H18-890 |
|---|---|
| Alternative numbers | 1117875 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI COMBI INSTANT 105HE | 47-075-19 | 47-075-19 | — | — |
| BAXI COMBI INSTANT 80HE | 47-075-17 | 47-075-17 | — | — |
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.
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