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Worcester Bosch Plate Heat Exchanger 35CDi II 87161026720

Worcester Bosch

Worcester Bosch Plate Heat Exchanger 35CDi II 87161026720

Worcester Bosch plate heat exchanger (87161026720) for 35CDi II RSF combi boilers, transferring heat between the primary circuit and domestic hot water.

At a glance

  • Part type: Heat exchangers
  • Also known as 1013967
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161026720
GC number
E80-456
Showing prices

£231.98

£193.32 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

A plate heat exchanger manufactured by Worcester Bosch for use in its 35CDi II RSF combi boiler range. The plate pack transfers heat from the primary heating circuit into the domestic hot water supply, so it sits at the centre of hot water production in the appliance. It is supplied as a spare component for service and repair work.

Signs this part needs replacing

  • Domestic hot water runs hot then cold, or the temperature swings noticeably at the tap
  • Hot water output drops away while the heating circuit continues to work normally
  • The boiler fires and reaches temperature but delivers little or no hot water
  • Reduced flow through the hot water side, often accompanied by scale or debris in the plate pack
  • Water weeping from the plate assembly or from the connections around it

Before you order

  • Check the GC number and model on the appliance data badge against the compatibility list before ordering
  • Confirm the part number on the existing component matches 87161026720 or the alternative number 1013967
  • 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.