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Vaillant Wiring Harness 0020166562

Vaillant

Vaillant Wiring Harness 0020166562

Wiring harness for Vaillant VPM 15 D and VPM 30 D pump units.

At a glance

  • Also known as 1387794
Manufacturer part no.
0020166562
Showing prices

£83.59

£69.66 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 0020166562 wiring harness is the electrical loom used on Vaillant VPM pump units. It carries power and control signals between the pump unit's components and the appliance's connection points. It is supplied as a single harness assembly for use during repair or replacement of damaged wiring.

Signs this part needs replacing

  • The pump unit fails to run, runs intermittently, or cuts out without an obvious mechanical cause
  • Insulation on the harness is cracked, chafed, brittle, or showing exposed conductors
  • Connectors are loose, corroded, discoloured, or show signs of overheating or scorching
  • Fault codes or electrical faults persist after the pump, board, and supply have been checked
  • The harness has been damaged during previous servicing or component removal

Before you order

  • Confirm the appliance model on the data plate matches one of the listed VPM pump units
  • Check the part number on the existing harness against 0020166562 where it is still legible
  • Compare the connector count, plug shape, and lead lengths with the harness being removed
  • Inspect the mating connectors and terminals for damage before fitting the replacement

Not sure which part?

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