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Ideal Heat Engine Kit Mex HE 15 18 24 174129

Ideal

Ideal Heat Engine Kit Mex HE 15 18 24 174129

Ideal 174129 heat engine kit (heat exchanger assembly) for Mexico HE 15, HE 18 and HE 24 boilers. Alternative part number 1179852.

At a glance

  • Part type: Heat engine kit (heat exchanger assembly)
  • Appliance family: Mexico HE
  • Also known as 1179852
Manufacturer part no.
174129
Showing prices

£1,156.57

£963.81 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 174129 Heat Engine Kit is a replacement heat exchanger assembly for the Mexico HE range of domestic gas boilers. It transfers heat from the combustion gases into the system water that serves the radiators and the hot water circuit. The kit is produced by Ideal for the Mexico HE 15, HE 18 and HE 24 models.

Signs this part needs replacing

  • Water weeping from the heat exchanger body or from its water connections
  • Repeated boiler lockouts or ignition faults traced back to the heat exchanger
  • Kettling, banging or rumbling noises while the boiler is firing
  • Reduced heating or hot water output with the burner still running
  • Visible corrosion, scale build-up or distortion across the exchanger surfaces

Before you order

  • Confirm the GC number on the appliance data badge matches one of the numbers listed above.
  • Check the boiler model and variant, as the Mexico HE 15, HE 18 and HE 24 are rated differently.
  • Inspect the seals and gaskets on the combustion and water connections and renew them if they are perished or flattened.

Not sure which part?

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