Engine Nissan TD42

The 4.2-liter Nissan TD42 diesel engine was first introduced back in 1987 and was intended for the new generation of the Patrol SUV or its Japanese brother Safari. This motor is still popular in car markets with liberal environmental standards.

The Nissan TD42T has been produced since 1993 in Japan and is mainly used in commercial vehicles, but it is better known for the local Safari SUV. There are five versions of this unit in total: TD42T1, TD42T2, TD42T3, TD42T4, and TD42T5.

The TD series includes internal combustion engines: TD23, TD25, TD27 and TD27ETi.

The engine was installed on:

  • Nissan Patrol 4 (Y60) in 1987 – 1998;
  • Nissan Patrol 5 (Y61) in 1997 – …


Start of production 1987
Displacement, cc 4169
Fuel system vortex chamber
Power output, hp 115 – 125 (TD42)
145 – 160 (TD42T)
Torque output, Nm 265 – 275 (TD42)
330 – 340 (TD42T)
Cylinder block cast iron R6
Block head cast iron 12v
Cylinder bore, mm 96
Piston stroke, mm 96
Compression ratio 22.7 – 23.0 (TD42)
22.0 – 22.8 (TD42T)
Features no
Hydraulic lifters no
Timing drive gears
Phase regulator no
Turbocharging no (TD42)
Hitachi HT18 (TD42T)
Recommended engine oil 10W-30
Engine oil capacity, liter 9.4
Fuel type diesel
Euro standards EURO 1/2/3
Fuel consumption, L/100 km (for Nissan Patrol 1990)
— city
— highway
— combined
Engine lifespan, km ~500 000
Weight, kg 340 (TD42)
365 (TD42T)

Disadvantages of the TD42 engine

  • One of the world’s most reliable diesel engines is noisy and vibrates;
  • A proprietary breakdown is cutting the splines of the vacuum pump drive in frost;
  • The oil pressure sensor is afraid of water, and its replacement will cost you a lot;
  • On long runs, there are pump leaks and timing gear block gaskets;
  • Timing gears wear out over time, the phases go astray and the motor starts to triple;
  • From the detonation through the fault of bad diesel fuel, the jumpers between the vortex chambers crack.

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