Worcester Bosch Pilot Injector 87161563000

The Worcester Bosch pilot injector 87161563000 is a metered gas jet that supplies the pilot burner on a range of older Worcester Bosch gas appliances. It controls the volume of gas reaching the pilot, which in turn sets the size and stability of the standing flame that lights the main burner. The injector is a small, precisely drilled brass component, so its orifice is easily disturbed by debris, cleaning or repeated servicing.

This injector is listed against the Worcester 240, 280 RSF and 9.24 Electronic families, among others, and is the part to check when a pilot flame will not hold or burns incorrectly.

• The pilot flame fails to light, or lights only intermittently when the ignition is operated.
• The pilot flame is weak, yellow or unstable rather than a steady blue flame.
• The pilot extinguishes shortly after it has been established, causing repeated lockouts.
• Sooting, discolouration or a lazy flame at the pilot assembly.
• The pilot flame lifts away from the burner or appears oversized after servicing.

• Check the GC number on the appliance data badge against the compatibility list before ordering, as the same appliance family can use different injectors.
• Confirm the injector currently fitted is marked ZBGAS016 or 87161563000.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.