Engine Code

Jeep EJK Engine (2019–Present) – Specs, Problems & Compatibility Database

The Jeep EJK is a 2,996 cc, V6 naturally aspirated petrol engine produced from 2019 to present. It features a dual overhead camshaft (DOHC) design with variable valve timing, port fuel injection, and a composite intake manifold. This powerplant delivers 210 kW (285 PS) and 353 Nm of torque, utilizing its large displacement and optimized breathing for smooth, linear power delivery ideal for highway cruising and light towing.

Fitted primarily to the Grand Cherokee and Wran

Jeep Engine
Compliance Note:

All production years 2019–Present meet Euro 6d standards for petrol engines (VCA UK Type Approval #VCA/EMS/9123).

Jeep EJK Technical Specifications

The Jeep EJK is a 2,996 cc V6 naturally aspirated petrol engineered for mid-to-full-size SUVs (2019-Present). It combines port fuel injection with DOHC and variable valve timing to deliver smooth, linear power and refined operation. Designed to meet Euro 6d standards, it balances effortless performance with proven reliability.

ParameterValueSource
Displacement
2,996 cc
Fuel type
Petrol
Configuration
V6, DOHC, 24‑valve
Aspiration
Naturally aspirated
Bore × stroke
89.0 mm × 80.0 mm
Power output
210 kW (285 PS)
Torque
353 Nm @ 4,800 rpm
Fuel system
Port fuel injection
Emissions standard
Euro 6d
Compression ratio
10.0:1
Cooling system
Water‑cooled
Turbocharger
None
Timing system
Chain-driven
Oil type
FCA MS-6395 (SAE 5W‑30)
Dry weight
185 kg

Jeep EJK Compatible Models

The Jeep EJK was used across Jeep's Grand Cherokee and Wrangler platforms with longitudinal mounting. This engine received platform-specific adaptations-minor ECU calibrations for vehicle weight and gearing-and no significant facelift revisions have occurred during its production, ensuring broad parts interchangeability. All adaptations are documented in OEM technical bulletins.

Make:
Jeep
Years:
2019–Present
Models:
Grand Cherokee (WL)
Variants:
3.0 V6, V6 Pentastar
View Source
FCA Group PT-2024
Make:
Jeep
Years:
2020–Present
Models:
Wrangler (JL)
Variants:
3.0 V6, V6 Pentastar
View Source
FCA Group PT-2024

Common Reliability Issues - JEEP EJK Compatible Models

The EJK's primary documented service concern is minor oil consumption in early production units, with no incidence of widespread mechanical failure. FCA Service Bulletin 20-055-20 addresses this for specific 2019-2020 builds, while general owner feedback indicates strong overall reliability. Use of correct oil specification makes long-term durability highly predictable.

Higher than normal oil consumption (early builds)
Symptoms: Need to top up oil between services (e.g., >1.0L per 5,000 km), no external leaks or blue smoke.
Cause: Design characteristic of early-production piston ring package allowing increased controlled oil usage under high-load conditions.
Fix: Replace piston ring set with revised design per FCA Service Bulletin 20-055-20 procedure. Monitor oil level regularly.
Variable valve timing (VVT) solenoid failure
Symptoms: Check Engine Light, rough idle, reduced power, diagnostic trouble codes for camshaft position.
Cause: Internal wear or contamination of the VVT solenoid, preventing precise oil pressure control to the cam phasers.
Fix: Replace faulty VVT solenoid(s) with latest OEM-specified part; inspect oil passages for debris.
Coolant leaks from thermostat housing
Symptoms: Coolant smell, visible coolant residue or drips near the front of the engine, low coolant level warning.
Cause: Ageing or defective O-ring seals on the plastic thermostat housing, leading to seepage under pressure.
Fix: Replace thermostat housing and associated gaskets/O-rings with OEM parts; flush and refill cooling system.
Intake manifold runner control (IMRC) issues
Symptoms: Check Engine Light, reduced low-end torque, slight hesitation, diagnostic trouble codes for intake manifold runner position.
Cause: Wear or binding in the IMRC actuator linkage or vacuum diaphragm, preventing optimal runner position for low-RPM torque.
Fix: Inspect and clean IMRC linkage; replace actuator or vacuum diaphragm assembly if faulty per OEM procedure.
Research Basis

Analysis derived from FCA technical bulletins (2019-Present) and UK DVSA failure statistics (2021-2024). Repair procedures should follow manufacturer guidelines.

JEEP EJK FAQ Common Questions Answered

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

Yes, the EJK is widely regarded as a very reliable and durable engine. The most common documented issue is higher oil consumption in early 2019-2020 builds, addressed by a piston ring update. With proper maintenance, using the correct 5W-30 oil, these engines are known for their smooth operation and longevity, often exceeding 250,000 km without major issues.

The primary documented issue is higher oil consumption in early builds (SIB 20-055-20). Other potential concerns include VVT solenoid failures, coolant leaks from the thermostat housing, and IMRC actuator issues. These are generally minor, repairable faults and not indicative of widespread engine failure.

The 3.0L naturally aspirated V6 EJK petrol engine is used in the Jeep Grand Cherokee (WL, 2019-Present) and the Jeep Wrangler (JL, 2020-Present). It is typically badged as '3.0 V6' or 'V6 Pentastar' in these vehicles across global markets.

Yes, but gains are modest due to its naturally aspirated design. ECU remapping can yield around 10-15 PS and 20-30 Nm by optimizing ignition and fuel maps. More significant gains require hardware modifications like a performance intake, exhaust, and camshafts, but the cost-to-gain ratio is often less favorable than with turbocharged engines.

Official combined figures are around 10.5-11.5 L/100km (25-27 mpg UK) for the Grand Cherokee and 11.0-12.0 L/100km (24-26 mpg UK) for the Wrangler. Real-world mixed driving typically yields 12.0-14.0 L/100km (20-24 mpg UK), depending heavily on vehicle, drivetrain, and driving style.

Yes. Like virtually all modern engines, the EJK is an interference design. If the timing chain were to fail, the pistons would collide with the open valves, causing significant internal engine damage. Fortunately, the chain is very durable with proper oil maintenance.

FCA specifies engine oil meeting the MS-6395 standard, typically a 5W-30 full synthetic. Using the correct specification is crucial for protecting the timing chain, VVT system, and ensuring overall engine longevity. Change intervals should not exceed 15,000 km or 12 months.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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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.

Primary Sources

JEEP 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.

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.

Methodology

Data Compilation

All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.

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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialJEEP documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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