Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Riello Valve Piston O Ring 3007165

Riello

Riello Valve Piston O Ring 3007165

Riello valve piston O-ring, part 3007165, for R40 series oil burners.

At a glance

  • Also known as 3205421
Manufacturer part no.
3007165
Showing prices

£16.18

£13.48 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 Riello 3007165 is a valve piston O-ring used in Riello oil burners. It seals the valve piston within the burner's oil valve assembly, helping to maintain correct fuel delivery and prevent oil seepage. It sits in the O-rings, washers and gaskets category under oil boiler spares.

Signs this part needs replacing

  • Oil weeping or staining around the valve piston area
  • A fuel odour near the burner or valve assembly
  • Burner lockout or unstable ignition linked to loss of oil pressure
  • An O-ring that is hardened, flattened, cracked or swollen on inspection

Before you order

  • Confirm your burner model and code against the fitment list above
  • Check the part number 3007165 matches the seal currently fitted
  • Inspect the piston and valve seat for wear or scoring before reassembly
  • Check whether other seals in the same valve assembly also need replacing

Not sure which part?

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

Riello Valve Piston O Ring 3007165 | R40 Burners