The Genesis G4KD is a 3,342 cc, V6 petrol engine produced between 2016 and 2020. It features gasoline direct injection (GDI), dual continuously variable valve timing (D — CVVT), and a twin — scroll turbocharger. This combination delivers strong, linear power for confident overtaking and highway cruising, with outputs of 272 kW (365 PS) and 510 Nm of torque.
Fitted primarily to the first — generation Genesis G80 and G90 sedans, the G4KD was engineered for refined, effortles…
Genesis
Production years 2016–2020 meet Euro 6 standards for all markets .
The Genesis G4KD is a 3,342 cc V6 turbocharged petrol engineered for luxury sedans (2016-2020). It combines gasoline direct injection with a twin-scroll turbocharger to deliver strong, linear power and refined performance. Designed to meet Euro 6 standards, it balances high output with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,342 cc | |
Fuel type | Petrol | |
Configuration | V6, DOHC, 24-valve | |
Aspiration | Twin-scroll turbocharged | |
Bore × stroke | 92.0 mm × 83.8 mm | |
Power output | 272 kW (365 PS) @ 6,000 rpm | |
Torque | 510 Nm @ 1,300–4,500 rpm | |
Fuel system | Gasoline Direct Injection (GDI), up to 200 bar | |
Emissions standard | Euro 6 | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single twin-scroll turbo (Honeywell) | |
Timing system | Chain-driven | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 187 kg |
The Genesis G4KD was used across Genesis's full-size luxury platforms with longitudinal mounting and was not licensed to other manufacturers. This engine received platform-specific adaptations-reinforced mounts in the G90 for enhanced NVH control-and no mid-cycle facelifts affected core engine compatibility. All adaptations are documented in OEM technical bulletins.
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The G4KD's primary documented concern is potential high-pressure fuel pump (HPFP) wear under extreme conditions, with elevated incidence in vehicles used for frequent high-speed driving or towing. Genesis TSB-19-FL-003 outlines the corrective procedure, while routine maintenance data suggests carbon buildup on intake valves is a common service item. Use of correct fuel grade and oil specification 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 G4KD is a robust, high-performance engine. Its main documented issue, the HPFP, was addressed by Genesis via TSB-19-FL-003. With proper maintenance, use of premium fuel, and adherence to oil change intervals, it can be very reliable for the long term. Carbon buildup is a common GDI trait, not a unique failure.
The most common documented issues are potential HPFP wear (addressed by TSB), carbon buildup on intake valves (a GDI characteristic), turbo wastegate rattle on high-mileage cars, and slightly higher-than-average oil consumption. Regular maintenance mitigates most concerns.
The G4KD 3.3L twin-turbo V6 was used exclusively in the first-generation Genesis G80 (2016-2020) and G90 (2016-2020) sedans, specifically in their '3.3T' trim levels. It was not used in any other Genesis or Hyundai/Kia models.
Aftermarket ECU tuning is common on the G4KD platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
Official combined figures are around 10.5 L/100km. Real-world consumption varies greatly: expect 13-16 L/100km in city driving and 8-10 L/100km on the highway. Aggressive driving will significantly increase consumption due to the engine's power and weight of the vehicles.
Yes. Like virtually all modern DOHC engines, the G4KD is an interference design. If the timing chain were to fail (a very rare occurrence on this engine), it would likely result in severe internal damage as pistons collide with open valves.
Genesis specifies a premium 5W-30 synthetic oil meeting their 'Genesis Premium' or API SP specification. Using the correct oil is crucial for protecting the turbocharger bearings and maintaining chain tensioner function under high operating temperatures.
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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