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Worcester Bosch Ignition Lead 87144019990

Worcester Bosch

Worcester Bosch Ignition Lead 87144019990

At a glance

  • Part type: Ignition lead (HT lead)
  • Also known as WB87144019990, 1012829, N2385
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87144019990
GC number
E74-608
Showing prices

£97.66

£81.38 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 87144019990 is an ignition lead (HT lead) used on Worcester Greenstar gas boilers. It carries the high-tension spark from the ignition source to the electrode at the burner, so the appliance can light reliably on demand. The lead is supplied as a single replacement item and is listed under the spare part type Cables, Leads & Wiring Harnesses.

Signs this part needs replacing

  • The boiler attempts to fire but does not light, or lights only intermittently.
  • Repeated lockouts on start-up with no spark at the electrode.
  • Visible damage to the lead: cracked or perished insulation, scorching, or a brittle, hardened sheath.
  • Corroded, loose or blackened terminals at either end of the lead.
  • Fault traced to the HT circuit during a service or diagnostic check.

Before you order

  • Check the appliance GC number and model against the compatibility list to confirm the lead is correct for your boiler.
  • Confirm the previous part number 87144018780 before ordering if you are replacing an older lead.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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