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Baxi 3/4 Inch BSP Sealing Washer 13/18661

Baxi

Baxi 3/4 Inch BSP Sealing Washer 13/18661

A 3/4 inch BSP sealing washer, part 13/18661, for selected Baxi and Potterton gas boilers.

At a glance

  • Also known as WASHER-FIBRE, 1120363
Manufacturer part no.
13/18661
GC number
289-676
Showing prices

£7.79

£6.49 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

The Baxi 13/18661 is a 3/4 inch BSP sealing washer used on selected Baxi and Potterton gas boilers. It seals a 3/4 inch BSP threaded joint to stop leakage at the connection. It sits in the O-rings, washers and gaskets category of gas boiler spares.

Signs this part needs replacing

  • Visible weeping or drips at the 3/4 inch BSP joint
  • Water staining or corrosion around the connection
  • Washer flattened, hardened or cracked
  • Leak returns after the joint is re-tightened
  • Washer damaged or lost during servicing

Before you order

  • Confirm the connection is 3/4 inch BSP
  • Check your appliance model against the fit list above
  • Check how many washers the job requires

Not sure which part?

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