Engine Hyundai-Kia G6BA

The 2.7-liter V6 Hyundai G6BA engine was assembled at an enterprise in Korea from 1999 to 2012 and was installed on top versions of such popular models as Sonata, Magentis, Santa Fe, Tucson. There was a gas modification of this power unit under its own index L6BA.

In 1999, Hyundai introduced its own V6 unit to replace the G6AV engine, which was essentially a clone of the 24-valve version of the 2.5-liter Mitsubishi 6G73 engine. Of the differences here is an aluminum cylinder block with a closed cooling jacket, as well as a different timing belt: the belt rotates the intake camshafts, and the exhaust camshafts are connected to them by a chain.

Otherwise, it is the same V-shaped 6-cylinder unit with a 60° camber angle, a pair of aluminum DOHC heads with hydraulic lifters, a modern ignition system and an intake manifold, which received a proprietary VIS-type geometry change system.

The Delta family also includes engines: G6BP and G6BV.

The engine was installed on:

  • Hyundai Coupe 2 (GK) in 2001 – 2008;
  • Hyundai Sonata 4 (EF) in 2001 – 2012;
  • Hyundai Santa Fe 1 (SM) in 2000 – 2012;
  • Hyundai Tucson 1 (JM) in 2004 – 2009;
  • Hyundai Trajet 1 (FO) in 1999 – 2008;
  • Kia Magentis 1 (GD) in 2001 – 2006; Magentis 2 (MG) in 2005 – 2006;
  • Kia Opirus 1 (GH) in 2003 – 2006;
  • Kia Sportage 2 (KM) in 2004 – 2010.


Production years 1999-2012
Displacement, cc 2656
Fuel system distributed injection
Power output, hp 165 – 182
Torque output, Nm 230 – 250
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 86.7
Piston stroke, mm 75
Compression ratio 10.0
Features VIS, DOHC
Hydraulic lifters yes
Timing drive chain & belt
Turbocharging no
Recommended engine oil 5W-30, 5W-40
Engine oil capacity, liter 5.5
Fuel type petrol
Euro standards EURO 3/4
Fuel consumption, L/100 km (for Hyundai Tucson 2007)
— city
— highway
— combined
Engine lifespan, km ~400 000
Weight, kg 148 (185 with attachments)

Disadvantages of the Hyundai G6BA engine

  • This is a very reliable power unit with a huge resource, but it has a weak point: swirl flaps of the geometry change system are installed in the intake manifold, the bolts of which tend to unscrew and fall directly into the engine combustion chamber.
  • This engine has a thick timing belt that lasts longer than the scheduled 60,000 km, but it is often destroyed by a not the most reliable hydraulic tensioner or oiling due to a leak. When the belt jumps, the motor usually simply does not start, and when it breaks, it bends the valves.
  • Another common complaint of car owners with such an engine is the oil burner. A small lubricant consumption appears closer to 200 thousand km and grows strongly with mileage. Most often, hardened valve stem seals or stuck rings are to blame.
  • The weak points of the unit include a rather modest resource of attachments, high-voltage wires, a crankshaft pulley, hydraulic lifters, and also all sensors. Also, the engine speed is constantly floating here due to contamination of the throttle, idle speed controller or injectors.

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