Alpha
Alpha gas valve assembly Honeywell VK4105A1027 6.5644680
Genuine Alpha gas valve assembly using the Honeywell VK4105A1027 valve, part number 6.5644680, fitted from boiler serial number A74600001.
At a glance
- Also known as 1251300
- This is gas work and must be carried out by a Gas Safe registered engineer
£248.38
£206.98 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
This is the gas valve assembly fitted to affected Alpha boilers, built around a Honeywell VK4105A1027 gas valve. It controls and modulates the gas supply to the burner. It is a genuine Alpha part, number 6.5644680, listed by the manufacturer's own parts records as fitted from boiler serial number A74600001.
Signs this part needs replacing
- Boiler fails to ignite or loses ignition intermittently
- Gas valve fault codes on the boiler display
- A smell of gas around the valve body
- Boiler fails a gas soundness/tightness test at the valve
Before you order
- Check your boiler's serial number against the cutoff quoted (from A74600001) before ordering; boilers before this serial used a different gas valve assembly (part 6.5638270, Honeywell VR4605A1045)
- Isolate the gas supply before starting any work
- This is gas work and must be carried out by a Gas Safe registered engineer
Compliance
| Alternative numbers | GAS-VALVE-ELEC-AFTER1197, 1251300 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA 240E | 47-532-06 | 47-532-06 | — | — |
| ALPHA 240E (LPG) | — | — | — | |
| ALPHA 240XE | 47-532-11 | 47-532-11 | — | — |
| ALPHA 280E | 47-532-08 | 47-532-08 | — | — |
| ALPHA 280E (LPG) | — | — | — | |
| ALPHA 500 E | 47-532-07 | 47-532-07 | — | — |
| ALPHA ALPHA 240E | — | — | — | |
| ALPHA ALPHA 240XE | — | — | — | |
| ALPHA ALPHA 280E | — | — | — | |
| ALPHA ALPHA 500 E | — | — | — |
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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