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Baxi Union Nut 5134171

Baxi

Baxi Union Nut 5134171

Union nut for the Baxi Ecogen 24 gas boiler, used to secure a threaded union joint.

At a glance

  • Also known as 1119470
Manufacturer part no.
5134171
GC number
H76-419
Showing prices

£20.69

£17.24 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

A union nut manufactured by Baxi for use on the Baxi Ecogen 24 gas boiler. It forms part of a threaded union joint, drawing the two mating faces together to create a sealed connection. It is supplied as an individual component.

Signs this part needs replacing

  • Visible corrosion, cracking or thread damage on the nut
  • The union joint weeps or drips after tightening
  • The nut will not tighten down fully or binds on the thread
  • Flats rounded off, preventing correct tightening with a spanner
  • Signs of water or gas escape staining around the joint

Before you order

  • Confirm the appliance model and, where possible, the GC number against the manufacturer's parts list
  • Check the union nut size and thread against the joint being repaired
  • Inspect the mating faces and sealing washers, as these may also need attention
  • Isolate the appliance and follow the manufacturer's instructions before work begins

Not sure which part?

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