Vaillant
Vaillant VP5/2 S2 Grundfos Pump 160977
Circulation pump for Vaillant Thermo Compact and Turbomax PLUS boilers, part number 160977.
At a glance
- Also known as 1373947, N5176
£262.76
£218.97 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 Vaillant 160977 is a circulation pump built on the Grundfos VP5/2 S2 platform, used to move primary water around the heating circuit of the appliance. It is fitted to Vaillant Thermo Compact and Turbomax PLUS gas boilers, where it provides the flow through the heat exchanger and around the system. The pump is listed under Vaillant gas boiler spares and supersedes part number 113694.
Signs this part needs replacing
- No circulation, with the boiler firing but radiators staying cold or heating unevenly
- Pump body running hot while the flow and return pipework stays cool
- Grinding, humming or rumbling noise from the pump head during operation
- Boiler locking out or tripping on an overheat or flow-related fault
- Water weeping from the pump body, gasket face or pump head
Before you order
- Check the boiler data plate and confirm the model matches one of the appliances listed above
- Confirm the existing pump is marked VP5/2 S2 or that the appliance's parts list specifies 160977
- Check the pump connections and head assembly against the unit being replaced before removal
- Assess the system water condition, as sludge or debris is a common cause of pump failure
Compliance
| Barcode / EAN | 4024074433676 |
|---|---|
| Alternative numbers | 1373947, N5176 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT THERMO COMPACT 620E VU 282/2-5 R3 (41-044-24) | — | — | — | |
| VAILLANT VAILLANT THERMO COMPACT 637E VU 362/2-5 (41-044-32) | — | — | — | |
| VAILLANT VAILLANT THERMO COMPACT 637E VU 362/2-5 R3 (41-044-32) | — | — | — | |
| VAILLANT VAILLANT TURBOMAX PLUS 837 VUW 362/2-5 (47-044-28) | — | — | — | |
| VAILLANT VAILLANT TURBOMAX PLUS 837 VUW 362/2-5 R3 (47-044-28) | — | — | — |
Documents & drawings
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