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Grant Primary Store Thermostat MPCBS25

Grant

Grant Primary Store Thermostat MPCBS25

Primary store thermostat for Grant Combi 70 MKII and Combi 90 MKII oil boilers.

At a glance

  • Also known as 2160062
Manufacturer part no.
MPCBS25
Showing prices

£40.32

£33.60 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
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 Grant MPCBS25 is a primary store thermostat for Grant oil-fired combi boilers. It forms part of the boiler's temperature control system and is used across the Grant Combi 70 MKII and Combi 90 MKII appliance families. The part is listed in the Thermostats category for oil boiler spares.

Signs this part needs replacing

  • Domestic hot water temperature is inconsistent or does not reach the set point.
  • The boiler does not respond correctly to changes in primary store temperature.
  • The thermostat fails to switch the boiler on or off at the expected temperature.
  • Hot water runs cool or fluctuates despite the boiler firing.
  • The boiler cycles more often than normal or cuts out unexpectedly.

Before you order

  • Confirm your boiler model appears in the Fits list.
  • Check the existing thermostat is marked MPCBS25 or matches the part number.
  • Verify the appliance is a Grant Combi 70 MKII or Combi 90 MKII variant as listed.
  • If unsure, consult the manufacturer's parts list for your model.

Not sure which part?

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