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Ideal Heat Engine Gasket Kit Post Prefix XF 176654

Ideal

Ideal Heat Engine Gasket Kit Post Prefix XF 176654

Ideal 176654 heat engine gasket kit for Esprit 2 and Isar + Programmer boilers, supplied as a post-prefix XF replacement seal set.

At a glance

  • Part type: Gaskets, O-rings, seals and washers
  • Also known as 1179983
Manufacturer part no.
176654
Showing prices

£25.72

£21.43 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Ideal 176654 is a heat engine gasket kit manufactured by Ideal for use in its domestic boiler range. It provides the sealing components required at the heat engine assembly, where the combustion and water-carrying sections of the appliance meet. The kit is specified for appliances built after the XF prefix change, so the correct variant must be matched to the boiler's identification plate.

Signs this part needs replacing

  • Water weeping or staining around the heat engine joint faces
  • Visible hardening, flattening or cracking of the existing gasket material
  • Combustion readings drifting from the values recorded at commissioning
  • Slight pressure loss on the sealed system with no obvious external leak
  • Gasket damage found when the heat engine is stripped for servicing or repair

Before you order

  • Confirm the appliance is a post-prefix XF build; earlier variants use a different sealing arrangement
  • Check the GC number on the boiler data badge against the compatibility list below
  • Cross-reference the alternative number 1179983 if the original packaging is no longer readable

Not sure which part?

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