Alpha
Alpha diverter valve complete cartridge 3.031749
Genuine Alpha diverter valve complete cartridge for the InTec 2/Eco2 boiler range, part number 3.031749.
At a glance
- Also known as 1258722
£129.46
£107.88 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 Alpha diverter valve complete cartridge is the cartridge within the diverter valve that switches the boiler between central heating and domestic hot water. It is a genuine Alpha part, number 3.031749.
Signs this part needs replacing
- The valve or motor fails to switch between heating and hot water, or is slow and noisy in operation
- No hot water or no heating on one circuit while the other works normally
- The motor hums but does not turn, or the cartridge is seized, sticking or leaking
Before you order
- Isolate electrical power and drain down the relevant circuit before removing the valve or motor
- Confirm the fault is the motor or cartridge itself rather than the signal driving it
- Match the part number exactly, as these assemblies are often revised between production runs
Compliance
| Alternative numbers | 1258722 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA ECO 2 BOILER | 47-532-60 | 47-532-60 | — | — |
| ALPHA ALPHA ECO 2 PLUS BOILER | 47-532-63 | 47-532-63 | — | — |
| ALPHA E-TEC 28 | 47-532-69 | 47-532-69 | — | — |
| ALPHA E-TEC 28 (LPG) | 47-532-73 | 47-532-73 | — | — |
| ALPHA E-TEC 33 | 47-532-70 | 47-532-70 | — | — |
| ALPHA E-TEC 33 (LPG) | 47-532-74 | 47-532-74 | — | — |
| ALPHA E-TEC HYBRID 33HB | — | — | — | |
| ALPHA E-TEC PLUS 28 | 47-532-77 | 47-532-77 | — | — |
| ALPHA E-TEC PLUS 28 (LPG) | 47-532-77 | 47-532-77 | — | — |
| ALPHA E-TEC PLUS 33 | 47-532-78 | 47-532-78 | — | — |
Showing 10 of 23 compatible appliances.
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.
ALPHA appliance manual — ALPHA ECO 2 BOILER (GC 47-532-60)
manualmanualALPHA appliance manual — ALPHA ECO 2 PLUS BOILER (GC 47-532-63)
manualmanualALPHA appliance manual — E-TEC 28 (GC 47-532-69), E-TEC 28 (LPG) (GC 47-532-73), E-TEC 33 (GC 47-532-70), E-TEC 33 (LPG) (GC 47-532-74)
manualmanualALPHA appliance manual — E-TEC HYBRID 33HB
manualmanualALPHA appliance manual — E-TEC PLUS 28 (GC 47-532-77), E-TEC PLUS 28 (LPG) (GC 47-532-77), E-TEC PLUS 33 (GC 47-532-78), E-TEC PLUS 38 (GC 47-532-79), E-TEC PLUS 38 (LPG) (GC 47-532-79)
manualmanualALPHA appliance manual — EVOKE 28 (GC 47-532-71), EVOKE 28 (LPG) (GC 47-532-75), EVOKE 33 (GC 47-532-72), EVOKE 33 (LPG) (GC 47-532-76)
manualmanualALPHA appliance manual — InTEC 2 25X (GC 47-532-61), InTEC 2 28X (GC 47-532-62)
manualmanualALPHA appliance manual — InTEC 2 25XE, InTEC 2 28XE
manualmanualALPHA appliance manual — InTEC 2 26CE (GC 47-532-66), InTEC 2 30CE (GC 47-532-67), InTEC 2 35CE (GC 47-532-68)
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