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Sime 7 Pole Lumberg Cable Connector 6278609

Sime

Sime 7 Pole Lumberg Cable Connector 6278609

Seven-pole Lumberg cable connector for Sime gas boilers, used to link the wiring harness to a boiler component.

At a glance

  • Also known as 2041688
Manufacturer part no.
6278609
Showing prices

£15.38

£12.82 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 7 Pole Lumberg cable connector (part number 6278609) is a multi-pin electrical connector used in Sime gas boilers. It provides a secure seven-pole connection between a wiring harness and the component it serves. The Lumberg connector format is used across the Sime Avant and Planet Super 4 appliance families.

Signs this part needs replacing

  • Intermittent electrical faults or the boiler failing to fire
  • Scorched, brittle or discoloured connector housing
  • Loose, bent or corroded pins inside the connector
  • Damaged or broken retaining clip, allowing the plug to work loose
  • Fault codes traced to a poor connection at the harness plug

Before you order

  • Confirm your boiler model and, where shown, the GC number against the fitment list
  • Check the pin count and orientation of the existing connector match this seven-pole item
  • Inspect the mating socket on the boiler for damage or corrosion before fitting
  • Isolate the electrical supply to the appliance before removing or refitting the connector

Not sure which part?

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