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Riello R40 G3/Mectron block electrode 3005721

Riello

Riello R40 G3/Mectron block electrode 3005721

Genuine Riello block electrode assembly, part number 3005721, for the R40 G3 and Mectron 2/3 burner range.

At a glance

  • Also known as 3200138
Manufacturer part no.
Z3005721
Showing prices

£30.40

£25.33 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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

This is a genuine Riello block electrode assembly, manufacturer part number 3005721, used on the Riello R40 G3 and Mectron 2/3 oil burner range. It creates the spark that ignites the fuel-air mixture at the combustion head.

Signs this part needs replacing

  • Burner fails to ignite or ignition is delayed
  • Intermittent lockouts on start-up
  • Visible pitting, carbon build-up or cracking on the electrode
  • Weak or erratic spark when the burner fires

Before you order

  • Match part number 3005721 against the marking on your existing electrode
  • Confirm your burner is one of the R40 G3/Mectron variants listed above
  • Isolate power and fuel supply before removing the electrode assembly

Not sure which part?

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