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Glow-worm Cable Tree Zig Harness 0020020780

Glow-worm

Glow-worm Cable Tree Zig Harness 0020020780

Cable tree (Zig harness) 0020020780 for Glow-worm gas boilers, including Flexicom, Ultimate, Ultrapower and BG330 models.

At a glance

  • Also known as 1337867
Manufacturer part no.
0020020780
Showing prices

£21.35

£17.79 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

The Glow-worm Cable Tree (Zig Harness) 0020020780 is a wiring harness component for Glow-worm gas boilers. It is listed for use across a range of Flexicom, Ultimate, Ultrapower and BG330 models.

Signs this part needs replacing

  • Visible damage, chafing or heat damage to the harness or its connectors.
  • Intermittent electrical faults or boiler shutdowns linked to wiring movement.
  • Loose, corroded or poor connections at the harness plugs.
  • Boiler failing to power up or respond when controls are operated.
  • Repeated fault codes traced to the wiring loom.

Before you order

  • Confirm the boiler model and GC number against the fitment list.
  • Check the existing harness part number and connector layout match 0020020780.
  • Inspect connectors for damage before fitting.
  • If unsure, consult the manufacturer's parts list for your appliance.

Not sure which part?

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