Vaillant
Vaillant Wiring Harness 0020129548
Wiring harness for Vaillant ecoTEC and Unistor appliances, carrying the internal electrical connections between boiler components.
At a glance
- Part type: wiring harness
- Also known as 1533913
£53.78
£44.82 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 0020129548 is a wiring harness used in Vaillant gas boilers and cylinders. It forms the internal electrical link between the appliance's control components, carrying power and signal connections within the casing. It is listed by the manufacturer under the wiring category for the ecoTEC PLUS 837 and related models.
Signs this part needs replacing
- Fault codes or lockouts traced to a broken or intermittent internal connection
- Visible damage to the loom, such as chafed, scorched or brittle insulation
- Connectors that are cracked, corroded or no longer latch securely onto their terminals
- Continuity faults on one or more conductors when the harness is tested
- Boiler components failing to receive power or signal despite testing correctly in isolation
Before you order
- Confirm the appliance model and variant against the fit list above, as harness routing differs between revisions
- Check the existing harness part number or label before ordering
- Inspect the connectors and terminals for damage that may also need attention
- Isolate the appliance from the electrical supply before fitting
Compliance
| Barcode / EAN | 4024074608548 |
|---|---|
| Alternative numbers | 1533913 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VAILLANT ECOTEC PLUS 837 - VUW 376/3-5 R1 | — | — | — | |
| VAILLANT VAILLANT ECOTEC PLUS 837 - VUW 376/3-5 R3 | — | — | — | |
| VAILLANT VUI 376/3-5 | 47-044-39 | 47-044-39 | — | — |
| VAILLANT VUW 376/3-5 | 47-044-33 | 47-044-33 | — | — |
| VAILLANT VUW 376/3-5 R1 | 47-044-33 | 47-044-33 | — | — |
| VAILLANT VUW 376/3-5 R3 | 47-044-35 | 47-044-35 | — | — |
| VAILLANT ecoTEC 937 VUI 376/3-5 (2006-2012) | 47-044-39 | 47-044-39 | — | — |
| VAILLANT ecoTEC PLUS 837 VUW 376/3-5 (2005-2005) | 47-044-33 | 47-044-33 | — | — |
| VAILLANT ecoTEC PLUS 837 VUW 376/3-5 R1 (2005-2006) | 47-044-33 | 47-044-33 | — | — |
| VAILLANT ecoTEC PLUS 837 VUW 376/3-5 R3 (2011-2012) | 47-044-35 | 47-044-35 | — | — |
Showing 10 of 12 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.
VAILLANT appliance manual — VUI 376/3-5 (GC 47-044-39), ecoTEC 937 VUI 376/3-5 (2006-2012) (GC 47-044-39)
manualmanualVAILLANT appliance manual — VUW 376/3-5 (GC 47-044-33), VUW 376/3-5 R1 (GC 47-044-33), ecoTEC PLUS 837 VUW 376/3-5 (2005-2005) (GC 47-044-33), ecoTEC PLUS 837 VUW 376/3-5 R1 (2005-2006) (GC 47-044-33)
manualNo technical questions yet for this part.
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