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Worcester Bosch Wiring Harness Single Blue 87161131620

Worcester Bosch

Worcester Bosch Wiring Harness Single Blue 87161131620

Single blue wiring harness for Worcester Bosch Greenstar Heatslave External appliances.

At a glance

  • Also known as 1021861
Manufacturer part no.
87161131620
Showing prices

£4.60

£3.83 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 Worcester Bosch Wiring Harness Single Blue (87161131620) is a wiring loom used to connect electrical components within the appliance. It is specified for the Worcester Greenstar Heatslave External range of oil-fired condensing boilers. The harness carries control and power connections between the appliance's electrical parts, identified by its blue single lead configuration.

Signs this part needs replacing

  • Visible damage to the lead, such as chafed, cracked or heat-affected insulation
  • Discoloured, corroded or loose connector terminals at either end of the harness
  • Intermittent electrical faults or loss of power to the component the harness feeds
  • Boiler failing to fire or locking out where the harness is the suspected circuit fault
  • Moisture ingress or contamination around the plug connections

Before you order

  • Confirm the appliance model is one of the Greenstar Heatslave External variants listed above
  • Check the existing harness lead colour and connector positions against the part being replaced
  • Inspect both ends of the existing harness for connector damage before fitting the replacement
  • Verify the manufacturer part number 87161131620 matches the part reference for your appliance

Not sure which part?

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