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Ideal Hydroblock Assembly Complete 26kW 176877

Ideal

Ideal Hydroblock Assembly Complete 26kW 176877

Ideal 176877 complete hydroblock assembly for the Vogue C26 26kW boiler, handling domestic hot water and heating circuit switching.

At a glance

  • Part type: Diverter valves and hydraulics
  • Also known as 1782721
Manufacturer part no.
176877
Showing prices

£1,184.76

£987.30 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 176877 is a complete hydroblock assembly rated for 26kW appliances. It is the hydraulic unit inside the boiler that manages the flow of water between the primary heating circuit and the domestic hot water circuit, housing the diverter valve and associated waterways. It is used across the Ideal Vogue C26 family and related Ideal Commercial appliance entries.

Signs this part needs replacing

  • Domestic hot water runs cold or only warms intermittently while the heating circuit works normally
  • The boiler fails to switch between central heating and hot water demand
  • Water weeping or staining around the hydroblock body, seals or connection points
  • Loss of system pressure that cannot be traced to any other component
  • Fault codes or lockouts linked to diverter or hydraulic operation

Before you order

  • Confirm the GC number 47-348-99 against the data badge on the appliance before ordering
  • Check the boiler model and output rating, as this assembly is specified for 26kW appliances
  • Note the alternative part number 1782721 when cross-referencing older documentation
  • Inspect the seals and gaskets on the existing hydroblock, as these are commonly disturbed during removal and refitting

Not sure which part?

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