Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch End Flame Sense Harness 87161024380

Worcester Bosch

Worcester Bosch End Flame Sense Harness 87161024380

Worcester Bosch end flame sense harness 87161024380, the electrode lead used on 24 SI II RSF, 28 SI II RSF and RD 628 gas boilers.

At a glance

  • Part type: HT leads / flame sense harness
  • Also known as 1013873
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161024380
GC number
E89-768
Showing prices

£10.43

£8.69 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 Worcester Bosch end flame sense harness (87161024380) is the lead assembly that links the flame sensing electrode to the boiler control board. It sits in the combustion area next to the electrodes, carrying the small ionisation current the board monitors to confirm a flame is present at the burner. It is used across the Worcester Bosch SI II RSF and RD 628 appliance families.

Signs this part needs replacing

  • Boiler locks out or fails to fire, with a flame detection fault showing
  • Repeated ignition attempts followed by shutdown
  • Burner lights then drops out, giving intermittent running
  • Cracked, brittle or heat-damaged insulation along the lead
  • Loose or corroded terminal at the electrode or board connection

Before you order

  • Confirm the GC number on the appliance data badge matches one of those listed above.
  • Check the existing lead routing and connector type against the replacement before fitting.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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