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Worcester Bosch Harness Low Voltage 87186871090

Worcester Bosch

Worcester Bosch Harness Low Voltage 87186871090

Low voltage wiring harness for Worcester Bosch Greenstar Ri 27kW and 30kW Compact boilers.

At a glance

  • Also known as HARNESS-LOW-VOLTAGE, 2246709
Manufacturer part no.
87186871090
Showing prices

£45.44

£37.87 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
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 Harness Low Voltage is a wiring harness manufactured by Worcester Bosch for the Greenstar Ri Compact boiler family. It carries low voltage signals between the boiler's internal components. It is the part listed under Worcester Bosch part number 87186871090.

Signs this part needs replacing

  • Boiler fails to start or locks out with low voltage or communication faults
  • Intermittent running or random fault codes during operation
  • Visible damage to the harness insulation, plugs or terminals
  • Loose, broken or heat-affected connections in the wiring run
  • Corroded or discoloured connector pins

Before you order

  • Confirm the boiler model matches one listed above
  • Check the GC number on the boiler data badge against the appliance you are working on
  • Compare the connector layout and harness routing with the existing part
  • Isolate the boiler from the electrical supply before fitting

Not sure which part?

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