Engine Mitsubishi 3B20T

The Mitsubishi 3B20T 0.7-liter 3-cylinder turbo engine was produced from 2006 to 2020 and was installed on such popular kei cars as the eK Custom, eK Wagon and the similar Nissan Dayz. There are two generations of this power unit: for the i model and for the eK line of kei cars.

The 3B2 family also includes engines: 3B20, 3B21 and 3B21T.

The engine was installed on:

  • Mitsubishi i 1 (HA1) in 2006 – 2013;
  • Mitsubishi eK Custom 1 (B11) in 2013 – 2019;
  • Mitsubishi eK Space 1 (B11) in 2014 – 2020;
  • Mitsubishi eK Wagon 1 (B11) in 2013 – 2019;
  • Nissan Dayz 1 (B21) in 2013 – 2019;
  • Nissan Dayz Roox 1 (B21) in 2014 – 2020.


Production years 2006-2020
Displacement, cc 659
Fuel system distributed injection
Power output, hp 64
Torque output, Nm 94 – 100
Cylinder block aluminum R3
Block head aluminum 12v
Cylinder bore, mm 65.4
Piston stroke, mm 65.4
Compression ratio 8.8 – 9.0
Features DOHC
Hydraulic lifters no
Timing drive chain
Phase regulator MIVEC
Turbocharging MHI TD02M2
Recommended engine oil 5W-30
Engine oil capacity, liter 3.4
Fuel type petrol
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Mitsubishi eK Wagon 2015)
— city
— highway
— combined
Engine lifespan, km ~180 000
Weight, kg 69 (without attachments)

Disadvantages of the Mitsubishi 3B20T engine

  • For a tiny turbo engine, this engine is quite reliable, it has no weak points;
  • It is very important to monitor the cooling system, it immediately leads the head from overheating;
  • Grease often pours into candle wells due to hardened o-rings;
  • After 150 thousand kilometers, oil consumption and timing chain stretch are common;
  • There are no hydraulic lifters and valve clearances need to be adjusted every 100,000 km.

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