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Sime DHW Cylinder Flange 6258311

Sime

Sime DHW Cylinder Flange 6258311

Sime DHW cylinder flange, part number 6258311, for use with a range of Sime Murelle and Dewy boilers.

At a glance

  • Part type: DHW cylinder flange
  • Also known as 2042004
Manufacturer part no.
6258311
Showing prices

£44.28

£36.90 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 Sime DHW cylinder flange (part number 6258311) is a component used in the domestic hot water circuit of Sime gas boilers. It provides a sealed connection at the cylinder, helping to maintain water integrity within the heating and hot water system. This flange is designed for compatibility with a range of Sime Murelle and Dewy models.

Signs this part needs replacing

  • Water leaks or drips around the flange connection
  • Visible corrosion, rust, or mineral buildup on the flange
  • Loss of system pressure or frequent top-ups required
  • Water staining or dampness near the cylinder
  • Reduced hot water performance or inconsistent heating

Before you order

  • Confirm your boiler model is listed in the Fits section above.
  • Check the part number 6258311 matches the component you are replacing.
  • Ensure the flange is suitable for your domestic hot water cylinder.
  • If unsure, consult a qualified heating engineer before ordering.

Not sure which part?

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