Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Vokera Diaphragm 20041058

Vokera

Vokera Diaphragm 20041058

Diaphragm (Ceramat) for Vokera gas boilers, part number 20041058, fitted in the hydraulic assembly of Compact, Excel, Vision and Procombi models.

At a glance

  • Also known as USE-20041058, 1533537
Manufacturer part no.
20041058
Showing prices

£1.61

£1.34 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Vokera 20041058 is a diaphragm, listed by the manufacturer as Diaphragm (Ceramat). It is a flexible pressure-sensing component used within the hydraulic assembly of Vokera gas boilers. It is specified for the Compact, Excel, Vision, Procombi, Sabre, Vibe and Mynute appliance families.

Signs this part needs replacing

  • No domestic hot water, or hot water that runs intermittently
  • Diverter valve failing to switch between heating and hot water
  • Radiators heating when a hot water tap is opened
  • Hot water temperature fluctuating or running cooler than expected
  • Water weeping from the hydraulic assembly around the diaphragm housing

Before you order

  • Confirm your boiler model against the fit list above.
  • Check the GC number on the appliance data badge.
  • On Vision 25C, check the serial number against the pre/post 20052391I31 split.
  • Match part number 20041058 against the component being removed.

Not sure which part?

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