Engine Ford SEA

The 2.5-liter Ford SEA or 2.5 Duratec V6 engine was produced from 1994 to 1999 in the USA and was installed only on the first two generations of the Mondeo model in its top modifications. To fit into the tax in 1999, the unit replaced the SEB engine with a volume of just under 2.5 liters.

The Duratec V6 line also includes internal combustion engines: SGA, LCBD, REBA and MEBA.

The engine was installed on:

  • Ford Mondeo Mk1 in 1994 – 1996;
  • Ford Mondeo Mk2 in 1996 – 1999.


Production years 1994-1999
Displacement, cc 2544
Fuel system distributed injection
Power output, hp 170
Torque output, Nm 220
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 82.4
Piston stroke, mm 79.5
Compression ratio 9.7
Features no
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 5.6
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Ford Mondeo 1998)
— city
— highway
— combined
Engine lifespan, km ~300 000

Disadvantages of the Ford SEA engine

  • The units of this series are very reliable, but too voracious for such power;
  • The main motor problems are related to overheating, usually due to a pump failure;
  • The second most common here is the failure of the fuel pump;
  • You need to clean the crankcase ventilation regularly or the engine will sweat oil;
  • Timing chain tensioners and hydraulic lifters are afraid of poor-quality lubrication.

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