Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Alpha Seal Kit Water Complete 3.014685

Alpha

Alpha Seal Kit Water Complete 3.014685

Complete water seal kit for Alpha CB50 and CD50 boilers, manufacturer part number 3.014685.

At a glance

  • Part type: gaskets, O-rings, seals and washers
  • Also known as 1250655
Manufacturer part no.
3.014685
Showing prices

£31.93

£26.61 ex. VAT · VAT at 20%

In stock
Order within 20m for same-day dispatch
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 3.014685 is a complete water seal kit supplied by Alpha for use in the water circuit of their CB50 and CD50 boiler range. It groups together the seals, O-rings and washers needed to reseal the water-carrying sections of the appliance, so a leaking joint or weeping connection can be put right in a single job rather than by sourcing individual seals one at a time. Seals in this position are exposed to constant heat cycling and mains water pressure, and they harden, flatten and eventually weep over the life of the boiler.

Signs this part needs replacing

  • Water weeping or dripping from the water section of the boiler, often visible as staining or scale trails on the casing or pipework
  • Seals that have gone hard, brittle or flattened when inspected, rather than sitting proud and flexible in their grooves
  • A slow loss of system pressure that cannot be traced to the radiator circuit or pressure relief pipework
  • Damp patches or corrosion around a joint that was previously dry
  • Repeated re-tightening of a connection that still seeps afterwards

Before you order

  • Confirm the boiler model and, where shown on the data badge, the GC number against the compatibility list below before ordering
  • Note that 3.1124 is an earlier number for this kit, so an existing seal set may carry that marking
  • The kit covers the water side of the appliance only; identify which seal position is leaking so the correct component from the kit is used

Not sure which part?

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