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Vaillant 193537 O-ring, (x10)

Vaillant

Vaillant 193537 O-ring, (x10)

At a glance

  • Part type: O-ring
  • Also known as VAILLANT193537
Manufacturer part no.
193537
Showing prices

£14.40

£12.00 ex. VAT · VAT at 20%

In stock
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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Vaillant 193537 is a small rubber O-ring used as a sealing component inside Vaillant ecoTEC Plus and ecoTEC Pro boilers. It sits at a joint or connection in the water circuit, compressing between two mating faces to stop water escaping under pressure. This listing supplies the O-ring as a pack of ten, which suits engineers carrying out a repair or service where several seals are disturbed at once.

Signs this part needs replacing

  • Water weeping or a slow drip at a joint or connection on the boiler
  • Damp staining, white crusting or limescale deposits around a fitting
  • The O-ring has flattened, hardened or cracked with heat and age
  • Scale or debris embedded in the seal face, preventing a clean seal
  • Repeated pressure loss that traces back to a weeping connection

Before you order

  • Confirm the boiler model and serial number against the compatibility list before ordering
  • Match part number 193537 against the seal being replaced
  • O-rings are frequently disturbed as part of a wider repair, so check whether a gasket or seal kit is also needed for the job
  • Isolate and drain the appliance before removing any sealed connection

Not sure which part?

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