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Worcester Bosch Electrical Heater 3/4" Black Tube 87155035430

Worcester Bosch

Worcester Bosch Electrical Heater 3/4" Black Tube 87155035430

Electrical heater element with a 3/4" black tube connection, produced by Worcester Bosch for Greenstore combi and system boilers.

At a glance

  • Part type: electrical heating element
  • Appliance family: Worcester Greenstore combi and system boilers
  • Also known as ELECTRICAL-HEATER-34-BLACK-TUBE, 1020898
Manufacturer part no.
87155035430
Showing prices

£716.36

£596.97 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 Electrical Heater 3/4" (Black Tube) is an electrical heating element manufactured by Worcester Bosch, supplied under part number 87155035430. It is an element for the Greenstore range of gas boilers, where it provides electrical heating of the stored water. The black tube body carries a 3/4" connection.

Signs this part needs replacing

  • No reheating of stored water when the boiler is otherwise running normally
  • Element fails a continuity or resistance check across its terminals
  • Repeated tripping of the RCD or circuit breaker when the immersion circuit is energised
  • Visible corrosion, blistering or heavy scale on the element body
  • Water weeping from the element gland or connection point

Before you order

  • Confirm the boiler model against the fitment list, as Greenstore variants differ by output and combi or system format
  • Check the existing element connection size is 3/4" and that the body fitting matches
  • Verify the element terminals show the expected continuity and resistance before condemning the part
  • Isolate the electrical supply and drain the appliance before removal

Not sure which part?

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