Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Worcester Bosch Heat Exchanger Bare with New Sump 87161157410

Worcester Bosch

Worcester Bosch Heat Exchanger Bare with New Sump 87161157410

At a glance

  • Part type: Heat exchanger
  • Also known as WB87161157410, 1022065, N6342
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161157410
GC number
723-567
Showing prices

£668.93

£557.44 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 87161157410 is a heat exchanger supplied as a bare unit with a new sump. It sits in the boiler's heat transfer circuit, taking heat from the burner and passing it into the water that circulates around the heating and hot water system. The part is used across the Worcester Bosch Greenstar family, including the Ri, i and Si ranges.

Signs this part needs replacing

  • Reduced heating or hot water output that cannot be traced to the pump, diverter or controls
  • Kettling, banging or rumbling noises from the boiler during firing
  • Water weeping from the heat exchanger body, its connections or the sump area
  • Repeated overheat or lockout faults after the burner has fired
  • Visible scale, corrosion or soot build-up on the exchanger surfaces

Before you order

  • Check the GC number and serial plate on the appliance against the compatibility list before ordering, as several Greenstar variants use different exchangers.
  • Compare the part number on the existing component with 87161157410 and the previous numbers 87161153750 and 87161153770.
  • Have a replacement gasket or seal kit to hand if the existing seals are disturbed during removal.
  • 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.