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Worcester Bosch Heat Exchanger Gas to Water 87161054830

Worcester Bosch

Worcester Bosch Heat Exchanger Gas to Water 87161054830

Worcester Bosch gas-to-water heat exchanger, part 87161054830, for 28i Junior RSF appliances. GC number H05-264.

At a glance

  • Part type: Heat exchanger
  • Appliance family: 28i Junior RSF
  • Also known as 1014619
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161054830
GC number
H05-264
Showing prices

£456.66

£380.55 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 Worcester Bosch 87161054830 is a gas-to-water heat exchanger used in the 28i Junior RSF range of combination boilers. It transfers heat from the burner's combustion gases into the domestic water circuit, so it sits at the centre of the appliance's hot water and heating performance. The part is listed under Worcester Bosch's heat exchanger category and carries GC number H05-264.

Signs this part needs replacing

  • Hot water runs cooler than the set temperature, or the boiler struggles to hold a steady delivery.
  • Kettling, banging or rumbling noises from the appliance during heating or hot water draw-off.
  • Visible water staining, weeping or scale deposits around the heat exchanger body.
  • Repeated overheat lockouts or a boiler that cuts out before reaching temperature.
  • Discoloured or corroded metal on the exchanger surface, often with debris in the waterways.

Before you order

  • Check the appliance GC number and model against the compatibility list above; the 28i Junior RSF was produced in several variants with different GC numbers.
  • Confirm the existing part number or the alternative number 1014619 before ordering.
  • Inspect the sealing gasket when the exchanger is removed and replace it if it is no longer serviceable.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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