Worcester Bosch
Worcester Bosch Wiring Harness Mains External 87186910790
External mains wiring harness for Worcester Bosch Greenstar Heatslave II EXT boilers, part 87186910790.
At a glance
- Appliance family: Greenstar Heatslave II EXT ErP
- Also known as 2247137
£66.11
£55.09 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 Worcester Bosch wiring harness mains external is a manufacturer-supplied electrical loom for the Greenstar Heatslave II EXT range of oil-fired boilers. It carries mains power connections between the boiler's external wiring point and the internal control components. The harness is identified by Worcester Bosch part number 87186910790.
Signs this part needs replacing
- Visible damage to the cable sheath, such as cuts, chafing or heat marks
- Discoloured, burnt or corroded terminals and connector housings
- Intermittent power or fault codes linked to the mains supply circuit
- Loose or poor-fitting plugs at the harness connections
Before you order
- Confirm the boiler model matches one of the Greenstar Heatslave II EXT ErP variants listed
- Check the existing harness part number against 87186910790
- Inspect the connector types and pin count on the installed loom before ordering
- Isolate the boiler from the electrical supply before any inspection or replacement work
Compliance
| Alternative numbers | 2247137 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR HEATSLAVE II EXT 12/18 ErP | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE II EXT 18/25 ErP | — | — | — | |
| WORCESTER GREENSTAR HEATSLAVE II EXT 25/32 ErP | — | — | — |
Documents & drawings
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