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Glow-worm O-Ring 0020026404

Glow-worm

Glow-worm O-Ring 0020026404

Glow-worm O-ring, part 0020026404, for BG330 Plus and Flexicom gas boilers.

At a glance

  • Part type: O-ring
  • Also known as 1337907
Manufacturer part no.
0020026404
Showing prices

£9.48

£7.90 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 Glow-worm 0020026404 is an O-ring supplied for Glow-worm gas boilers. It forms a compression seal at the joint where it is fitted, preventing water or gas from escaping past the mating faces. It is listed for the BG330 Plus and the Flexicom range.

Signs this part needs replacing

  • Weeping or dripping at the joint the O-ring seals
  • Visible cracking, splitting or perishing of the rubber
  • The ring has hardened or lost its elasticity and no longer compresses
  • A flattened or deformed profile where it sits in its groove
  • Scale, corrosion debris or discolouration on the sealing face

Before you order

  • Confirm your boiler model and GC number against the manufacturer's parts list
  • Identify the exact joint the O-ring is being fitted to, as more than one seal may be used on the appliance
  • Inspect the mating faces and groove for corrosion or damage before fitting a new seal
  • Check whether other seals in the same 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.