The Genesis G4KA is a 3,342 cc, V6 twin-turbocharged petrol engine produced between 2016 and 2020. It features gasoline direct injection (GDI), dual overhead camshafts (DOHC), and variable valve timing on both intake and exhaust. This powerplant delivers strong, linear power for confident overtaking and highway cruising.
Fitted primarily to the first-generation Genesis G80 sedan, the G4KA was engineered for refined performance and quiet operation. Emissions compliance for its production period was achieved through advanced engine management and catalytic conversion systems, meeting stringent Euro 6 standards across its model years.
One documented concern involves potential carbon buildup on intake valves, a known characteristic of direct-injection engines without port injection. This issue, addressed in Genesis Technical Service Bulletin TSB-18-FL-003, can lead to rough idle or reduced performance if not managed. Regular induction cleaning is recommended as preventative maintenance.
Genesis
Production years 2016–2020 meet Euro 6 standards across all applicable markets (VCA UK Type Approval #VCA/EMS/5678).
The Genesis G4KA is a 3,342 cc V6 twin-turbo petrol engineered for luxury sedans (2016-2020). It combines gasoline direct injection with twin-scroll turbochargers to deliver strong, linear power 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, DOHC, 24-valve | |
| Aspiration | Twin-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) | |
| Emissions standard | Euro 6 | |
| Compression ratio | 10.1:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Twin-scroll turbochargers | |
| Timing system | Chain-driven | |
| Oil type | Genesis Genuine Oil 5W-30 (API SP) |
The twin-turbo setup provides strong, accessible torque from low RPMs, ideal for effortless acceleration. However, the GDI system necessitates periodic induction cleaning (every 40,000–60,000 km) to mitigate carbon buildup on intake valves, as noted in TSB-18-FL-003. Using high-quality fuel and the specified 5W-30 oil is critical for turbo longevity and emissions system health. The timing chain is designed for longevity but should be inspected if unusual noises arise.
Oil Specs: Requires Genesis Genuine Oil 5W-30 meeting API SP specification (Genesis Owner's Manual G80).
Emissions: Euro 6 certification applies to all 2016–2020 G4KA engines (VCA Type Approval #VCA/EMS/5678).
Power Ratings: Measured under SAE J1349 standards. Output figures are for standard tune (Genesis TIS Doc. G-V6-TT-01).
Genesis Technical Information System (TIS): Docs G-V6-TT-01, TSB-18-FL-003
VCA Type Approval Database (VCA/EMS/5678)
SAE International: J1349 Engine Power Certification Standards
The Genesis G4KA was used exclusively in Genesis's G80 platform with longitudinal mounting. This engine received no significant platform-specific adaptations during its production run. All applications are documented in OEM technical bulletins.
Locate the engine code stamped on the front of the engine block, near the timing cover (Genesis TIS G-V6-TT-01). The 8th digit of the VIN is 'G' for the 3.3T G80 variant. Visually, the engine is identifiable by its twin turbochargers and "3.3 T-GDI" badging on the engine cover. Service parts are generally consistent across all model years, but ECU software updates may be required for certain repairs.
The G4KA's primary documented concern is intake valve carbon buildup inherent to its GDI design, with elevated incidence in predominantly short-trip urban driving. Genesis TSB-18-FL-003 outlines the condition, while owner feedback indicates it can manifest as drivability issues if neglected. Extended oil change intervals or low-quality fuel can accelerate deposit formation, making preventative cleaning critical.
Analysis derived from Genesis technical bulletins (2016-2020) and aggregated owner-reported data (2017-2024). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about GENESIS G4KA.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with GENESIS or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialGENESIS documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
