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Heatline 3-Way Valve Housing D003202388

Heatline

Heatline 3-Way Valve Housing D003202388

Heatline three-way valve housing, part D003202388, for Capriz PLUS and Monza gas boiler models.

At a glance

  • Part type: three-way valve housing
  • Also known as 2171364
Manufacturer part no.
D003202388
Showing prices

£9.65

£8.04 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 HOUSING - 3-WAY VALVE is a Heatline spare part, manufacturer part number D003202388. It forms the body of the three-way valve assembly on Heatline gas boilers, directing water between the heating circuit and the domestic hot water circuit. It is listed for the Capriz PLUS and Monza appliance families.

Signs this part needs replacing

  • Water weeping or tracking from the valve housing body or its seals
  • Domestic hot water running cold or intermittently while the heating circuit stays hot
  • Radiators heating when only hot water is drawn
  • Stiff or incomplete movement of the valve, with the actuator unable to shift it through its full travel
  • Scale or debris build-up inside the housing restricting flow

Before you order

  • Confirm the boiler model and GC number against the fit list above
  • Check the part number on the existing housing matches D003202388
  • Establish whether the fault lies in the housing body or in the actuator head, as the two are ordered separately
  • Inspect the housing and seals for cracks, scale or debris before refitting

Not sure which part?

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