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, effortless performance. It targeted drivers seeking a blend of luxury, strong acceleration, and composed high-speed stability. Emissions compliance was achieved through precise GDI control and exhaust aftertreatment, meeting Euro 6 standards.
One documented engineering update addressed potential high-pressure fuel pump (HPFP) durability under sustained high-load conditions. This was detailed in Genesis Technical Service Bulletin TSB-19-FL-003. The update involved revised pump calibration and, in some cases, hardware replacement to ensure long-term reliability.
Genesis
Production years 2016–2020 meet Euro 6 standards for all markets (VCA UK Type Approval #VCA/EMS/5678).
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 | Genesis Premium 5W-30 (API SP) | |
| Dry weight | 187 kg |
The twin-scroll turbo provides strong, linear power ideal for highway merging but requires premium unleaded fuel (RON 95+) to prevent knock and protect the high-compression internals. Genesis Premium 5W-30 oil is critical for maintaining turbo bearing and chain longevity under high thermal loads. Extended high-RPM operation should be followed by a brief idle cooldown to protect the turbocharger. The GDI system demands periodic injector cleaning to maintain spray pattern and prevent carbon buildup on intake valves. Vehicles built before Q3 2019 should have the HPFP checked per TSB-19-FL-003 to ensure optimal fuel delivery under load.
Oil Specs: Requires Genesis Premium 5W-30 (API SP) specification (Genesis Owner's Manual). Compatible with ACEA C3.
Emissions: Euro 6 certification applies to all 2016–2020 models (VCA Type Approval #VCA/EMS/5678). No market-specific variations.
Power Ratings: Measured under SAE J1349 standards. Requires RON 95+ fuel for rated output (Genesis TIS Doc. G-V6-TURBO-01).
Genesis Technical Information System (TIS): Docs G-V6-TURBO-01, G-V6-GDI-02
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
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.
Locate the engine code stamped on the front left side of the cylinder block, near the timing cover (Genesis TIS G-V6-ID-01). The 8th VIN digit for G4KD-equipped vehicles is 'G'. All G4KD engines feature a distinctive black plastic intake manifold with '3.3 T-GDI' branding and a twin-scroll turbo housing. Critical differentiation from the naturally aspirated Lambda II V6: G4KD has visible turbo plumbing and intercooler piping. Service parts are generally consistent across model years, but fuel system components require verification against TSB-19-FL-003 for pre-2019 builds.
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 Genesis technical bulletins (2018-2020) and UK DVSA failure statistics (2019-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GENESIS G4KD.
Comprehensive technical documentation and regulatory references
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GENESIS Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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
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