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Oil Spares B40 Flange Gasket BN11278801

OIL SPARES

Oil Spares B40 Flange Gasket BN11278801

Oil Spares B40 flange gasket for Bentone oil-fired boiler burner assemblies.

Manufacturer part no.
BN11278801
Showing prices

£11.52

£9.60 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 B40 flange gasket is a sealing component supplied by Oil Spares for Bentone oil burner assemblies fitted to boilers. It sits at the flange joint to seal the mating faces and prevent leakage of fuel or combustion gases at that connection. Correct sealing at the flange is essential to maintain safe, clean operation of the burner.

Before you order

  • Confirm the burner model is a Bentone unit and that the existing gasket is marked or identified as B40.
  • Check the flange joint faces are clean and undamaged before fitting a new gasket.
  • Verify the part number BN11278801 matches the item you intend to replace.
  • Ensure the gasket is fitted with the correct orientation and torque applied to the flange fasteners.

Not sure which part?

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