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Sime Plug Water Pressure Switch 6147403

Sime

Sime Plug Water Pressure Switch 6147403

Sime 6147403 plug for the water pressure switch, used on Friendly Format and Super MKII gas boilers.

At a glance

  • Part type: plug for water pressure switch
  • Also known as 2040596
Manufacturer part no.
6147403
Showing prices

£3.13

£2.61 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 Sime 6147403 is a plug for the water pressure switch used on Sime gas boilers. It forms the connection point between the water pressure switch and the boiler's wiring or sensing circuit. It is a service part intended for replacement when the plug is damaged, corroded or no longer making a reliable connection.

Signs this part needs replacing

  • Water pressure switch faults that persist after the switch itself has been checked
  • Corrosion, discolouration or heat damage at the plug body or terminals
  • Loose or intermittent connection causing the boiler to lock out or fail to fire
  • Moisture or weeping around the plug where it meets the pressure switch
  • Cracked or brittle plastic on the plug housing

Before you order

  • Confirm the boiler model and serial number against the fitment list above
  • Check the existing plug for damage and confirm the fault is at the plug rather than the pressure switch
  • Verify the part number 6147403 matches the number on the component being replaced
  • Isolate the boiler from the electrical supply before removing or refitting the plug

Not sure which part?

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