Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Vaillant Warm Water Tube 115187

Vaillant

Vaillant Warm Water Tube 115187

Vaillant warm water tube, part 115187, for MAG Mini 11-0/0 XI and XZ (2004) water heaters.

At a glance

  • Appliance family: MAG Mini 11-0/0
  • Also known as 1387230
Manufacturer part no.
115187
Showing prices

£51.18

£42.65 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

The Vaillant warm water tube is a water-carrying component used within the appliance's hot water circuit. It is identified by Vaillant part number 115187 and is listed for the MAG Mini 11-0/0 range of instantaneous water heaters. Its role is to convey heated water through the relevant section of the appliance assembly.

Signs this part needs replacing

  • Visible water weeping or dripping from the tube or its connections
  • Corrosion, pitting or green/white scale deposits on the tube surface
  • Reduced hot water flow through the appliance
  • Discolouration or deformation of the tube indicating heat or pressure damage
  • Water tracking onto surrounding components inside the casing

Before you order

  • Confirm the appliance model and year against the data plate, as fitment is listed only for MAG Mini 11-0/0 XI and XZ (2004) units
  • Check the existing tube and its connections to confirm the fault lies with this component
  • Verify the part number 115187 against the manufacturer's parts list for your appliance
  • Isolate the water and gas supplies and depressurise before any work begins

Not sure which part?

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