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Baxi O-Ring Gas Cock 401648

Baxi

Baxi O-Ring Gas Cock 401648

O-ring for the gas cock on Baxi and Potterton gas boilers, listed at 21.5 x 2.4 mm and identified by part number 401648.

At a glance

  • Also known as 1122352
  • Gas work must be carried out by a Gas Safe registered engineer
Manufacturer part no.
401648
GC number
114-962
Showing prices

£8.27

£6.89 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 401648 is a gas cock O-ring used on Baxi and Potterton gas boilers. It seals the gas cock assembly, preventing gas leakage at the joint. The part is listed at 21.5 x 2.4 mm.

Signs this part needs replacing

  • A smell of gas around the gas cock or gas isolation point
  • A visible weep or bubble-up at the gas cock joint during a tightness test
  • The O-ring is hardened, flattened, cracked or visibly perished
  • Gas cock spindle or body joint leaking after the appliance has been disturbed
  • Repeated leak detection fluid traces at the same joint after tightening

Before you order

  • Confirm the appliance model and, where applicable, the serial number suffix against the fitment list
  • Check the gas cock assembly to confirm the O-ring is the failed component and not the spindle or body
  • Isolate the gas supply and confirm the appliance is safe before any work begins
  • Gas work must be carried out by a Gas Safe registered engineer

Not sure which part?

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