The Worcester 87144019990 Ignition Lead is a genuine replacement high-tension cable designed to deliver the electrical spark from your boiler’s ignition system to the burner electrodes, ensuring reliable and consistent ignition of the gas/air mixture. A correctly functioning ignition lead is essential for smooth start-up, stable combustion and dependable boiler performance. Over time, ignition leads can deteriorate, crack or lose insulation, which can cause ignition delays, misfires, or boiler lockouts, so fitting the correct OEM-specified lead is important for restoring reliable operation.

This ignition lead is compatible with specific Worcester and Worcester Bosch boilers that reference part number 87144019990 in their parts documentation. To ensure correct fitment and optimal performance, always verify the part number on your existing lead or consult your boiler’s service information before installation, as ignition lead lengths and connector styles vary between models.

Supplied ready for direct replacement, the 87144019990 Ignition Lead connects securely to the boiler’s ignition components and existing wiring without modification when installed by a qualified engineer. Choosing this genuine Worcester Bosch component helps restore dependable spark delivery, supporting smooth burner start-up, consistent combustion and dependable heating performance in compatible boilers.