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Worcester Bosch Pressure Gauge and PRV 87161161090

Worcester Bosch

Worcester Bosch Pressure Gauge and PRV 87161161090

Pressure gauge and pressure relief valve for Worcester Greenstar Highflow 440CDI and 550CDI appliances before FD007.

At a glance

  • Also known as 2243967
Manufacturer part no.
87161161090
GC number
H92-218
Showing prices

£56.90

£47.42 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 87161161090 is a pressure gauge and pressure relief valve (PRV) assembly for Greenstar Highflow 440CDI and 550CDI appliances. The "before FD007" designation identifies it as suitable for units built before that revision. It provides a visual indication of system pressure and a controlled discharge point for excess pressure.

Signs this part needs replacing

  • The pressure gauge gives a reading that does not match the actual system pressure, or the needle sticks.
  • The boiler loses pressure repeatedly and needs frequent topping up.
  • The PRV weeps or discharges water from the discharge pipe when the system is below its set pressure.
  • System pressure rises excessively during heating cycles.

Before you order

  • Confirm the appliance is a Greenstar Highflow 440CDI or 550CDI (LPG or NG).
  • Check whether your unit is before or after the FD007 change.
  • Verify the existing part number 87161161090 before ordering.
  • Check that the pressure gauge and PRV are required as a combined unit.

Not sure which part?

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