The Genesis G4KE is a 3,342 cc, 60 — degree V6 petrol engine produced between 2016 and 2020. It features dual overhead camshafts (DOHC), gasoline direct injection (GDI), and continuously variable valve timing (CVVT) on both intake and exhaust camshafts. In standard form, it delivered 270 kW (365 PS) and 510 Nm of torque, providing strong, linear power delivery for effortless acceleration.
Fitted primarily to the first — generation Genesis G80 and G90 sedans, the G4KE was e…
Genesis
Production years 2016–2020 meet Euro 6 standards .
The Genesis G4KE is a 3,342 cc V6 petrol engine engineered for luxury sedans (2016-2020). It combines gasoline direct injection with dual CVVT to deliver smooth, powerful acceleration and refined operation. Designed to meet Euro 6 standards, it balances high performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,342 cc | |
Fuel type | Petrol | |
Configuration | V6, 60-degree, DOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 92.0 mm × 83.8 mm | |
Power output | 270 kW (365 PS) @ 6,000 rpm | |
Torque | 510 Nm @ 5,000 rpm | |
Fuel system | Gasoline Direct Injection (GDI) | |
Emissions standard | Euro 6 | |
Compression ratio | 11.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 187 kg |
The Genesis G4KE was used exclusively in Genesis's flagship G80 and G90 sedans with longitudinal mounting. This engine received minor ECU calibrations for different model years but no major mechanical revisions affecting core compatibility during its 2016-2020 production. All adaptations are documented in OEM technical bulletins.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The G4KE is generally robust, with its main long-term consideration being intake valve carbon buildup common to GDI engines. With proactive maintenance, including periodic induction cleaning and strict adherence to oil change intervals using the correct 5W-30 spec, the engine can be very reliable. The timing chain is designed for the engine's lifespan.
The most frequently documented issues are intake valve carbon deposits, potential CVVT actuator/solenoid faults, high-pressure fuel pump failures, and valve cover gasket leaks. These are well-covered in Genesis service information and are generally manageable with proper maintenance.
The G4KE 3.3L V6 was used in the first-generation Genesis G80 (2016-2020) and G90 (2016-2020) sedans, specifically in the 3.3 GDi trim level. It was not used in any other Genesis or Hyundai/Kia models during this period.
Yes, ECU remapping is possible and can yield modest power gains, typically around 15-25 kW. However, being naturally aspirated, significant power increases require major mechanical modifications like forced induction, which is complex and costly. Most tuning focuses on throttle response and drivability.
Fuel economy is moderate for a luxury V6. Expect combined figures around 10.5-12.0 L/100km (23-27 mpg UK) in real-world driving for the G80, and slightly higher for the heavier G90. Highway cruising can achieve 8.5-9.5 L/100km (30-33 mpg UK).
Yes. The G4KE is an interference engine. If the timing chain were to fail or jump significantly, the pistons would collide with the open valves, causing catastrophic internal engine damage. This underscores the importance of using the correct oil to ensure chain tensioner function.
Genesis mandates the use of 5W-30 viscosity oil meeting their specific Genuine Oil standard or API SP. Using the correct oil is crucial for protecting the engine, ensuring proper CVVT operation, and maintaining timing chain tensioner function. Change intervals should not be extended.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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