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Alpha O-Ring 12.37mm x 2.62mm

Alpha

Alpha O-Ring 12.37mm x 2.62mm

Alpha O-ring measuring 12.37mm internal diameter by 2.62mm, suitable for Alpha E-TEC and E-TEC PLUS appliances.

Manufacturer part no.
1.038509
Showing prices

£25.22

£21.02 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 Alpha O-Ring 12.37mm x 2.62mm is a sealing component for Alpha gas appliances in the E-TEC and E-TEC PLUS families. It provides a fluid-tight seal at the joint where it is fitted, preventing leakage past the mating faces. It is supplied under Alpha part number 1.038509.

Signs this part needs replacing

  • Visible water or gas weeping from the joint the O-ring seals
  • The O-ring is flattened, hardened or has taken a permanent set
  • Cracking, splitting or nibbling along the sealing face
  • Swelling or distortion after contact with system water or inhibitor
  • The joint has been disturbed during servicing and the seal will not re-seat

Before you order

  • Confirm the internal diameter and cross-section of the O-ring you are removing match 12.37mm x 2.62mm
  • Check the appliance model and GC number against the fit list to confirm compatibility
  • Inspect the mating faces and groove for corrosion, scoring or debris before fitting a new seal
  • Confirm whether the joint requires any additional sealing method specified for the appliance

Not sure which part?

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