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Baxi Hydro Block Right Hand 720544201

Baxi

Baxi Hydro Block Right Hand 720544201

Right-hand hydro block for Baxi and Broag Remeha Avanta Plus combi boilers, part 720544201, previously S62773.

At a glance

  • Part type: Diverter valves and hydraulics
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
720544201
GC number
H39-174
Showing prices

£276.00

£230.00 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 Baxi 720544201 is a right-hand hydro block forming part of the hydraulic and manifold assembly on Avanta Plus and Avanta Exclusive combi boilers. It carries water through the heating and domestic hot water circuits inside the appliance. The same component is fitted to Broag Remeha versions of these combi models.

Signs this part needs replacing

  • No domestic hot water, or hot water that runs intermittently while the boiler is otherwise working
  • Water weeping from the hydro block or the surrounding hydraulic assembly
  • System pressure dropping repeatedly, or the boiler failing to hold pressure
  • Heating that does not come on when a hot tap is opened, or error codes linked to the hydraulic circuit
  • Visible scale, corrosion, cracking or distortion on the block body

Before you order

  • Check the GC number on the appliance data badge against the compatibility list before ordering.
  • Confirm the previous part number S62773 if you are working from older documentation or an older stock reference.
  • Check whether a gasket or seal kit is needed for the joint being disturbed during replacement.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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