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Main Seal 5113042

Main

Main Seal 5113042

60mm diameter flue tube elbow seal, part 5113042, for Main and Potterton HE boilers.

At a glance

  • Also known as 1123774
Manufacturer part no.
5113042
GC number
H26-746
Showing prices

£8.52

£7.10 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 60mm diameter flue tube elbow seal manufactured by Main, part number 5113042. It seals the flue tube elbow joint on Main and Potterton HE condensing boilers, preventing flue gas and condensate escape at the connection. The seal is a service item and is replaced when the elbow joint is disturbed or the existing seal has degraded.

Signs this part needs replacing

  • Visible cracking, hardening or perishing of the seal material
  • Condensate weeping or staining around the flue elbow joint
  • Flue gas smell or draught detected at the elbow connection
  • Seal deformed or compressed after the elbow has been removed and refitted
  • Discolouration or water marks on the casing beneath the flue elbow

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the existing seal measures 60mm in diameter
  • Inspect the flue elbow joint for damage before refitting
  • Have the boiler recommissioned and flue readings checked after replacement

Not sure which part?

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