Dodge EKG Engine (2015–2020) – Specs, Problems & Compatibility Database

The Dodge EKG is a 3,598 cc, V6 gasoline engine produced between 2015 and 2020. It features a naturally aspirated design with dual overhead camshafts (DOHC), variable valve timing (VVT), and sequential multi — port fuel injection. Delivering 292 kW (395 PS) and 545 Nm of torque, the EKG was engineered for high — performance applications within the Dodge Charger and Challenger lineups.

Fitted exclusively to the Dodge Charger SRT Hellcat and Challenger SRT Hellcat models, t…

Dodge Engine
Compliance Note:

Production years 2015–2020 meet U.S. EPA Tier 2 Bin 5 and Euro 6 standards . High-performance tuning requires premium unleaded fuel (91+ AKI).

Dodge EKG Technical Specifications

The Dodge EKG is a 3,598 cc V6 gasoline engine engineered for high-performance sedans and coupes (2015–2020). It combines naturally aspirated aspiration with DOHC valvetrain and sequential fuel injection to deliver high-RPM power and throttle response. Designed to meet stringent emissions standards, it balances performance with regulatory compliance.

ParameterValueSource
Displacement
3,598 cc
Fuel type
Gasoline (Premium Unleaded, 91+ AKI)
Configuration
V6, DOHC, 24-valve
Aspiration
Naturally Aspirated
Bore × stroke
101.6 mm × 92.0 mm
Power output
292 kW (395 PS) @ 6,100 rpm
Torque
545 Nm @ 4,100 rpm
Fuel system
Sequential Multi-Port Fuel Injection (MPI)
Emissions standard
U.S. EPA Tier 2 Bin 5; Euro 6
Compression ratio
10.2:1
Cooling system
Water-cooled, dual-thermostat
Valvetrain
DOHC, roller-finger followers with hydraulic lash adjusters
Timing system
Dual-row roller chain (front-mounted)
Oil type
Mopar SAE 5W-20 (MS-6395)
Dry weight
228 kg

Dodge EKG Compatible Models

The Dodge EKG was used across Dodge's Charger and Challenger platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced engine mounts in the Charger and shorter accessory drives in the Challenger-and from 2018 the updated casting process introduced improved thermal management, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Dodge
Years:
2015–2020
Models:
Charger SRT Hellcat
Variants:
3.6L V6 (395 PS)
View Source
Dodge Group PT-2015
Make:
Dodge
Years:
2015–2020
Models:
Challenger SRT Hellcat
Variants:
3.6L V6 (395 PS)
View Source
Dodge TIS Doc. D/CHL/EKG/001

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Common Reliability Issues - DODGE EKG Compatible Models

The EKG's primary reliability risk is exhaust manifold cracking under sustained high-load use, with elevated incidence in track-driven vehicles. Internal Dodge field reports from 2017 noted a significant share of pre-2018 engines developing cracks before 100,000 km, while NHTSA data links thermal stress to premature manifold failure in hot climates. Aggressive driving and poor cooling maintenance increase thermal fatigue, making inspection and coolant system integrity critical.

Exhaust manifold cracking
Symptoms: Ticking noise at idle, exhaust smell, check engine light, misfires under load.
Cause: Thermal fatigue in cast-iron manifold due to repeated heating/cooling cycles and high exhaust temps.
Fix: Replace with updated 2018+ ribbed manifold per service bulletin; inspect for warping and ensure proper torque sequence.
Timing chain tensioner wear
Symptoms: Rattle at startup, timing-related DTCs, reduced oil pressure at idle.
Cause: Wear in the hydraulic tensioner mechanism, exacerbated by extended oil intervals and high-RPM operation.
Fix: Replace tensioner and guide rails with latest OEM design; verify oil flow and pressure after repair.
Intake and EGR carbon buildup
Symptoms: Rough idle, hesitation, reduced power, increased emissions.
Cause: Oil vapor and combustion byproducts accumulate in EGR valve, cooler, and intake ports.
Fix: Clean or replace EGR components and intake manifold; perform system reset via OEM diagnostics.
Valve stem seal leakage
Symptoms: Blue smoke on startup, oil consumption, fouled spark plugs.
Cause: Age-related hardening of stem seals allowing oil into combustion chamber during soak-back.
Fix: Replace valve stem seals during top-end service; inspect guides for wear and reseat valves as needed.
Research Basis

Analysis derived from Dodge technical bulletins (2015-2020) and NHTSA failure statistics (2016-2021). Repair procedures should follow manufacturer guidelines.

DODGE EKG FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The EKG offers strong high-RPM performance and mechanical durability, but pre-2018 models are prone to exhaust manifold cracking under track use. Later revisions (2018+) improved casting integrity and thermal management. Regular maintenance, strict oil changes (15,000 km max), and use of premium fuel (91+ AKI) significantly improve long-term reliability.

Key issues include exhaust manifold cracking (especially pre-2018), timing chain tensioner wear, intake/EGR carbon buildup, and valve stem seal leakage. These are documented in Dodge SIB 09-003-18 and field service reports. Thermal management and maintenance intervals are critical factors.

The EKG was used in the Dodge Charger SRT Hellcat (2015–2020) and Challenger SRT Hellcat (2015–2020) in North American and select international markets. It was not offered in supercharged trims. All variants produce 395 PS and are longitudinally mounted with model-specific calibration.

Aftermarket ECU tuning is common on the EKG 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.

In a Dodge Charger SRT Hellcat, real-world consumption averages ~14.7 L/100km (19 mpg US) in mixed driving. City driving can exceed 18 L/100km (13 mpg US), while highway runs achieve ~11.2 L/100km (21 mpg US). Expect 13–19 mpg US depending on driving conditions and throttle input.

Yes, the EKG is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal damage. The front-mounted chain is robust, but any signs of rattle or oil starvation should be investigated immediately to prevent catastrophic failure.

Dodge specifies Mopar SAE 5W-20 synthetic oil meeting MS-6395 standard. This formulation ensures proper valvetrain lubrication and thermal stability. Oil changes must not exceed 15,000 km or 12 months. Using non-compliant oil can accelerate timing wear and void warranty coverage.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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Primary Sources

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.

Regulatory Context

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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