Triumph 2000/2.5 PI/2500

Coolant capacity & service interval

The Triumph 2000/2.5 PI/2500 uses coolant with a capacity of 7.66 liters. The data covers 8 configurations of this model.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
2000TC Mk 2 (1975-1977)
  • Use: Normal
  • Capacity 7,66 liter
2500S Mk 2 (1974-1977)
  • Use: Normal
  • Capacity 7,66 liter
2500TC Mk 2 (1974-1975)
  • Use: Normal
  • Capacity 7,66 liter
2500TC Mk 2 (1974-1977)
  • Use: Normal
  • Capacity 7,66 liter
2.5 PI Mk 2 (1969-1975)
  • Use: Normal
  • Capacity 7,66 liter
2000 Mk 2 (1969-1977)
  • Use: Normal
  • Capacity 7,66 liter
2.5 PI Mk 1 (1968-1969)
  • Use: Normal
  • Capacity 7,66 liter
2000 Mk 1 (1963-1969)
  • Use: Normal
  • Capacity 7,66 liter

Additional Notes

  • The Triumph 2000/2.5 PI/2500 range lists a cooling system capacity of 7.66 liters for the 2.5 PI Mk 1, produced between 1968 and 1969, under normal use conditions.
  • A capacity of 7.66 liters reflects the total volume required to fill the radiator, engine block, and connecting hoses for a complete system charge, rather than a partial top-up amount.
  • The 2.5 PI Mk 2, spanning 1969 to 1975, carries an identical 7.66-liter specification, indicating no change in cooling system volume between the two Mark I and II petrol-injection variants.
  • The 2000 Mk 1, manufactured from 1963 to 1969, matches the same coolant volume, suggesting a shared cooling system design across the carbureted and fuel-injected engine variants introduced in the same era.
  • The 2000 Mk 2, covering 1969 to 1977, and the 2000TC Mk 2, covering 1975 to 1977, both list an identical 7.66-liter capacity despite differences in fuel delivery, since the TC variant uses twin carburetors rather than a single unit.
  • The 2500S Mk 2, produced from 1974 to 1977, retains the same 7.66-liter figure, aligning with the larger-displacement six-cylinder engine used across the 2500 series.
  • Two separate entries for the 2500TC Mk 2, one listed for 1974-1975 and another for 1974-1977, both specify a 7.66-liter cooling system capacity under normal use conditions.

Other Systems