From 1995 to 2006, the company’s factories produced the 1.8-liter Rover 18K4F engine, which was fitted to nearly all of the company’s vehicles, including the Land Rover Freelander crossover. It increased to 135 horsepower on the MG F from 115 to 120 horsepower on the majority of models.

K-series engines include the 11K4F, 14K2F, 14K4F, 16K4F, 18K4F, 18K4K, and 18K4G.
Specifications
| Production years | 1995-2006 |
| Displacement, cc | 1796 |
| Fuel system | distributed injection |
| Power output, hp | 115 – 135 |
| Torque output, Nm | 160 – 165 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 80 |
| Piston stroke, mm | 89.3 |
| Compression ratio | 10.5 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.5 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Rover 25 2001) — city — highway — combined |
8.9 5.3 6.7 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 108 |
The engine was installed on:
- Rover 200 III (RF) in 1997 – 1999;
- Rover 25 I (RF) in 1999 – 2002;
- Rover 400 II (RT) in 1997 – 1999;
- Rover 45 I (RT) in 1999 – 2005;
- Rover 75 I (RJ) in 1998 – 2005;
- Rover Streetwise I (RF) in 2003 – 2005;
- MG F in 1995 – 2002;
- MG TF in 2002 – 2005;
- MG ZR in 2001 – 2005;
- MG ZS in 2001 – 2005;
- MG ZT in 2003 – 2005;
- Land Rover Freelander 1 (L314) in 1997 – 2006.
Disadvantages of the Rover 18K4F engine
Above all, the unit fears overheating, which frequently causes the cylinder head to break through the gasket;
Additionally, the MEMS fuel injection system’s vagaries cause a great deal of trouble;
The timing belt needs to be changed once every 100,000 kilometers; if it breaks, the valves will bend; grease leaks continuously through the valve cover and camshaft seals.
