The 3.5-liter V6 G6CU engine from Hyundai-Kia was produced in South Korea from 1999 to 2007 and installed in popular models of the group, such as Terracan, Santa Fe, and Kia Sorento. This powertrain is actually a clone of the well-known Mitsubishi engine 6G74. The Sigma family also includes the following engines: - G6AV, - G6AT, - G6CT, and - G6AU.
| Typ | V-type |
| Number of cylinders | 6 |
| number of valves | 24 |
| Exact capacity | 3497 cm³ |
| Cylinder diameter | 93 mm |
| Piston stroke. | 85.8 mm |
| Power system | distributed injection |
| Power | 195 - 220 HP |
| Torque | 290 - 315 nm |
| Compression ratio | 10 |
| Fuel type | 92 |
| Environmental class | EURO 3 |
| City | 17.6 litry |
| Route | 9.7 litry |
| Mixed | 12.6 litry |
The weight of the G6CU engine according to the catalog is 199 kg. The G6CU engine number is located at the junction of the engine and the gearbox. The intake manifold flaps are known weak points of this engine. They deteriorate quite quickly, resulting in an air suction in the intake, and eventually they completely come off and their bolts fall into the cylinders, causing damage there. Bearing rotation is also a common occurrence. This power unit is very demanding in terms of lubrication level and the condition of the oil pump. Since oil consumption is not uncommon, bearing rotation of the crankshaft is a frequent phenomenon. On long distances, it is advisable to use thick oil and regularly replace it. Other disadvantages include the low lifespan of the crankshaft pulley, frequent failures of sensors, short lifespan of hydraulic compensators which often start knocking at a mileage of 100,000 km. The engine speed constantly fluctuates due to throttle or fuel injector contamination.
| Equus 1 (LZ) | 1999 - 2005 |
| Grandeur 3 (XG) | 2002 - 2005 |
| Santa Fe 1 (SM) | 2003 - 2006 |
| Terracan 1 (HP) | 2001 - 2007 |
| Carnival 1 (GQ) | 2001 - 2005 |
| Opirus 1 (GH) | 2003 - 2006 |
| Sorento 1 (BL) | 2002 - 2006 |
The 1.3-liter four-cylinder, 12-valve Hyundai G4EH engine was produced in Korea from 1994-2005 and was installed in the first two generations of the Accent model as well as in European versions of the Getz before the facelift. In Russian sources, this engine is often confused with its carburetor version, G4EA. The Alpha series also includes: G4EA, G4EB, G4EC, G4ED, G4EE, G4EK, and G4ER.
The 1.5-liter 16-valve Hyundai G4ER engine was produced by the company from 1995 to 2000 and used in the first generation of the Accent model and its various variations, such as Excel or Verna. This power unit is known by a completely different index, G4FK, in many sources. The Alpha series also includes: G4EA, G4EB, G4EC, G4ED, G4EE, G4EH, and G4EK.
The 3.3-liter V6 Hyundai G6DB petrol engine was produced by the company from 2004 to 2013 and used in both front-wheel drive models, such as the Santa Fe, and rear-wheel drive models, such as the Sorento. There were two generations of this engine with significant differences. Lambda series: G6DA G6DC G6DE G6DF G6DG G6DJ G6DH G6DK
The 3.8-liter gasoline engine Hyundai-Kia G6DN or 3.8 GDi has been produced since 2018 and is currently only installed in two similar crossovers - Hyundai Palisade and Kia Telluride. The engine operates in the economical Atkinson cycle, which is why it has high compression ratios. Lambda Line: G6DC G6DE G6DG G6DJ G6DH G6DK G6DP G6DS G6DU
The 4.8-liter V8 GM LY2 or Vortec 4800 engine was produced by the company from 2006 to 2017 and installed in Tahoe and Yukon SUVs, Silverado pickups, as well as Express and Savana minibuses. In 2009, this engine received a gas distribution phase change system and is designated as L20. The Vortec IV engine lineup also includes the units: LY5, LFA, and L92.
The 1.5-liter General Motors L3A engine was produced at the company's plant from 2015 to 2019 and installed in the second generation hybrid Chevrolet Volt and its Chinese counterpart, the Buick Velite. After production ended, the license for this engine was sold to MG for use in their vehicles. The Small Gasoline Engine family includes engines: LV7, LE2, LFV, LYX, and LSD.