Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch Pump Mains Wiring Harness 8716117723

Worcester Bosch

Worcester Bosch Pump Mains Wiring Harness 8716117723

Pump mains wiring harness for Worcester Bosch Greenstar Highflow 440CDi and 550CDi ErP boilers.

At a glance

  • Part type: pump mains wiring harness
  • Also known as 2244699
Manufacturer part no.
8716117723
GC number
J25-468
Showing prices

£19.55

£16.29 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 pump mains wiring harness is a Worcester Bosch electrical lead that connects the circulating pump to the boiler's control and mains supply circuit. It is used on Greenstar Highflow 440CDi and 550CDi ErP appliances. The harness carries mains voltage to the pump, so the pump runs when the boiler calls for heat or hot water.

Signs this part needs replacing

  • Pump does not run when the boiler is powered and calling for heat
  • Intermittent pump operation or pump cutting out during a demand
  • Visible damage to the harness: chafed, scorched or brittle insulation
  • Loose, corroded or discoloured terminals at the pump or control end
  • Boiler fault codes relating to pump or circulation faults that persist after the pump itself has been checked

Before you order

  • Confirm the boiler model and GC number against the fitment list above
  • Check the harness connectors and pin arrangement match the pump and control board on your appliance
  • Inspect the existing harness routing for any damage that may have caused the failure
  • Isolate the boiler from the electrical supply before removing or fitting the harness

Not sure which part?

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