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Worcester Bosch Wiring Harness Low Voltage 87186901520

Worcester Bosch

Worcester Bosch Wiring Harness Low Voltage 87186901520

Low voltage wiring harness for Worcester Greenstar Heatslave II ErP boilers.

At a glance

  • Part type: low voltage wiring harness
  • Appliance family: Greenstar Heatslave II ErP
  • Also known as 2246967
Manufacturer part no.
87186901520
Showing prices

£86.87

£72.39 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

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 Low Voltage is a low voltage electrical loom for the Greenstar Heatslave II ErP range of oil-fired boilers. It carries low voltage signals between the boiler's control components. It is supplied under manufacturer part number 87186901520.

Signs this part needs replacing

  • Boiler fails to run or locks out with no obvious mechanical or fuel fault
  • Intermittent operation or random lockouts that clear on their own
  • Control components not receiving a signal, with fault codes pointing to the low voltage circuit
  • Visible damage to the loom, such as chafed, cracked or heat-damaged insulation
  • Corroded or loose connector terminals on the harness

Before you order

  • Confirm the boiler model matches one of the Greenstar Heatslave II ErP variants listed above.
  • Check whether the appliance is a standard or EXT model before ordering.
  • Inspect the existing harness and connectors to confirm the fault lies with the loom rather than a connected component.
  • Isolate the boiler's electrical supply before carrying out any inspection or replacement work.

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.