Engine Rover 20K4N

The 2.0-liter Rover 20K4N engine was assembled at a factory in the UK from 1998 to 2004 and installed on the most popular concern models of its time with indexes 45 and 75. Unlike its older brother, this engine was offered in only one version with a capacity of 150 hp.

Engines of KV6-series: 20K4N, 25K4N.


Production years 1998-2004
Displacement, cc 1997
Fuel system distributed injection
Power output, hp 150
Torque output, Nm 185
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 80
Piston stroke, mm 66.2
Compression ratio 10.5
Features VIS
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 5.2
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Rover 45 2000)
— city
— highway
— combined
Engine lifespan, km ~240 000
Weight, kg 177.8

The engine was installed on:

  • Rover 45 I (RT) in 1999 – 2004;
  • Rover 75 I (RJ) in 1998 – 2004.

Disadvantages of the Rover 20K4N engine

  • Structurally, this is a motor with wet liners and they can sag when overheated;
  • Sagging liners leads to a mixture of oil with antifreeze and a major overhaul awaits you;
  • Another well-known engine problem is the ingress of lubricant into the throttle assembly;
  • If the three-belt timing belt is incorrectly replaced, it is easy to damage the camshafts here;
  • Weaknesses also include a thermostat, pump, cooling fan.

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