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Baxi Supply Valve 7860621

Baxi

Baxi Supply Valve 7860621

Red supply valve, part 7860621, for Baxi Aquaheat HD/HWI and HI/HWI appliances.

At a glance

  • Also known as 1129418
Manufacturer part no.
7860621
Showing prices

£75.44

£62.87 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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

A red supply valve manufactured by Baxi, part number 7860621. It forms part of the water circuit on Baxi Aquaheat HD/HWI and HI/HWI appliances, controlling supply flow into the unit. The valve is a serviceable component and is replaced as a complete assembly.

Signs this part needs replacing

  • Water weeping or dripping from the valve body or spindle
  • Visible corrosion, scale build-up or staining around the valve
  • Stiff or seized operation when the valve is turned
  • Restricted or inconsistent flow through the supply side of the circuit
  • Evidence of past leakage, such as water marks or residue on surrounding components

Before you order

  • Confirm your appliance model against the fitment list above
  • Check the part number stamped or labelled on the existing valve
  • Identify whether the supply or return valve is required, as the two are colour coded
  • Inspect the surrounding pipework and connections for damage before fitting

Not sure which part?

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