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Worcester Bosch Heat Exchanger Painted 87186893010

Worcester Bosch

Worcester Bosch Heat Exchanger Painted 87186893010

Painted heat exchanger for Worcester Bosch Greenstar Heatslave II 12/18 ErP and Heatslave II EXT 12/18 ErP appliances, part 87186893010.

At a glance

  • Also known as 2246877
Manufacturer part no.
87186893010
Showing prices

£2,450.54

£2,042.12 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 HEAT EXCHANGER PAINTED is a Worcester Bosch heat exchanger intended for the Greenstar Heatslave II 12/18 ErP and Greenstar Heatslave II EXT 12/18 ErP appliances. It transfers heat from the boiler into the water circuit, with a painted finish applied to the exchanger body. The part is identified by Worcester part number 87186893010.

Signs this part needs replacing

  • Water weeping from the heat exchanger body or its connections
  • Boiler overheating or locking out repeatedly during a demand
  • Kettling, banging or rumbling noises coming from the heat exchanger
  • Unstable or reduced hot water temperature at the outlets
  • Visible corrosion, scale or surface damage on the exchanger body

Before you order

  • Confirm the appliance is a Greenstar Heatslave II 12/18 ErP or Greenstar Heatslave II EXT 12/18 ErP
  • Check the existing component is marked with Worcester part number 87186893010
  • Trace the fault to the heat exchanger before ordering, checking for leaks, scale and correct circulation
  • Plan for draining and refilling the system, and confirm isolation and access before removal

Not sure which part?

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