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Riello Adaptor 3/8 Inch x 1/4 Inch 3005739

Riello

Riello Adaptor 3/8 Inch x 1/4 Inch 3005739

Riello 3/8 inch x 1/4 inch adaptor, part 3005739, for oil burner and boiler assemblies.

At a glance

  • Also known as 3203486
Manufacturer part no.
3005739
Showing prices

£14.78

£12.32 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 Riello 3005739 is a 3/8 inch x 1/4 inch adaptor used in Riello oil burner assemblies. It provides a threaded transition between the two connection sizes within the burner's oil circuit. It is listed under oil boiler spares.

Signs this part needs replacing

  • Oil weeping or staining around the adaptor joint
  • Damaged, cross-threaded or flattened threads
  • Difficulty achieving an oil-tight seal on reassembly
  • Corrosion or cracking visible on the adaptor body
  • Erratic burner operation linked to a leaking connection

Before you order

  • Confirm the thread sizes required on both sides of the connection
  • Check the burner model and code against the manufacturer's parts list
  • Inspect the mating threads for damage before fitting

Not sure which part?

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