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Baxi Viewing Window Assembly 5129198

Baxi

Baxi Viewing Window Assembly 5129198

Viewing window assembly for Baxi Duo-tec and Megaflo gas boilers, part number 5129198.

At a glance

  • Part type: viewing window assembly
  • Also known as 1118881
Manufacturer part no.
5129198
GC number
H53-953
Showing prices

£42.59

£35.49 ex. VAT · VAT at 20%

Available to order · 1-2 working days
Available to order · 1-2 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Baxi 5129198 is a viewing window assembly used on Baxi gas boilers, including the Duo-tec and Megaflo ranges. It provides the sealed observation point through which the burner flame and combustion chamber can be inspected during servicing. The assembly is listed by Baxi under gas boiler spares.

Signs this part needs replacing

  • Cracked, crazed or chipped viewing glass
  • Discoloured, scorched or blackened window that obscures flame observation
  • Condensation, staining or soot deposits trapped behind the glass
  • Damaged or perished sealing around the window, with signs of leakage
  • Window loose in its housing or no longer seating correctly

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the appliance serial number where fitment is listed as before or after a serial number
  • Verify the part number 5129198 against your boiler's parts list or data badge
  • Inspect the existing window and its seal before ordering to confirm the fault

Not sure which part?

Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.