Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Hanicks
Basket
Vaillant Washer (PK 10) 0020188103

Vaillant

Vaillant Washer (PK 10) 0020188103

Vaillant washer supplied in a pack of 10, part number 0020188103, for ecoTEC VU GB series boilers.

At a glance

  • Also known as 1386466
Manufacturer part no.
0020188103
Showing prices

£9.67

£8.06 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

This is a Vaillant washer, supplied as a pack of 10 under part number 0020188103. It is a sealing component used on Vaillant ecoTEC VU GB series boilers. The washer forms part of the boiler's sealing arrangement where a fluid-tight joint is required.

Signs this part needs replacing

  • Visible weeping or damp staining around the joint the washer seals
  • A washer that has hardened, flattened or cracked with age
  • A washer that has deformed or been pinched during previous assembly
  • Loss of system pressure traced to a joint sealed by this washer
  • Water or residue marks on the surrounding casing or pipework

Before you order

  • Confirm the boiler model and variant against the fit list above
  • Check the quantity required, as this part is supplied as a pack of 10
  • Inspect the joint and surrounding components for damage before reassembly
  • Isolate and drain down as required before opening any sealed joint

Not sure which part?

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