Engine Toyota 1AR under the hood

Engine Toyota 1AR

The 1AR engine began to be produced in 2008 for the North American market and for a long time they did not try to export it to other countries. First of all, the Toyota 1AR engine replaced the 2AZ-FE, and secondly, it filled the gap in the engine line for the original front-wheel drive models between 160-horsepower 2.4 and 280-horsepower 3.5. The engine was first installed on the Toyota Venza, then it was installed on other Toyota and Lexus models.


Manufacturer Kamigo Plant
Toyota Motor Manufacturing Alabama
Also called 1AR
Production years 2008
Cylinder block alloy aluminum
Fuel system injector
Configuration inline
Number of cylinders 4
Valves per cylinder 4
Piston stroke, mm 105
Cylinder bore, mm 90
Compression ratio 10
Displacement, cc 2672
Power output, hp 185/5800
Torque output, Nm / rpm 247/4200
Fuel type 95
Euro standards Euro 5
Weight, kg
Fuel consumption, L/100 km
— city
— highway
— combined
Oil consumption, gr/1000 km up to 1000
Recommended engine oil 0W-30 / 0W-40 / 5W-20 / 5W-30 / 5W-40
Engine oil capacity, liter 4.4
Amount of engine oil for replacement, liter 3.5
Oil change interval, km 7000-10000
Normal engine operating temperature, °C
Engine lifespan, km
— official information
— real


Frequent problems

The Toyota 1AR engine is quite reliable and durable. Its service life with high-quality and regular maintenance can exceed 300 thousand km. However, no matter how perfect it is, it also has some disadvantages:

  1. Extraneous sound from the clutch on VVTi. The problem is solved by replacing the part.
  2. Leaking pump. Periodic replacement of this element is required.
  3. Disposable motor. If the cylinder block is skewed, the engine will have to be changed completely.

The use of high-quality oil, good gasoline and timely maintenance helps to extend the life of the engine.

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