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 Wrangler models, the EJK was engineered for drivers prioritizing refinement, low-RPM torque, and proven reliability in mid-to-full-size SUVs. Emissions compliance for its production run is achieved through a three-way catalytic converter and precise engine management, meeting stringent Euro 6d standards across all markets.

One documented refinement addressed potential oil consumption in early 2019-2020 builds under specific high-load conditions. This update, detailed in FCA Service Bulletin 20-055-20, involved revised piston ring design and updated ECU calibration to optimize oil control. No widespread mechanical failures are documented in official FCA technical service information for this engine family.

Jeep Engine
Compliance Note:

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

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
Displacement2,996 cc
Fuel typePetrol
ConfigurationV6, DOHC, 24‑valve
AspirationNaturally aspirated
Bore × stroke89.0 mm × 80.0 mm
Power output210 kW (285 PS)
Torque353 Nm @ 4,800 rpm
Fuel systemPort fuel injection
Emissions standardEuro 6d
Compression ratio10.0:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven
Oil typeFCA MS-6395 (SAE 5W‑30)
Dry weight185 kg
Practical Implications

The naturally aspirated V6 provides smooth, predictable power ideal for relaxed highway driving and towing, requiring regular unleaded (95 RON) for optimal performance. Adherence to 15,000 km or 12-month oil change intervals with FCA MS-6395 specification oil is critical for timing chain and bearing longevity. The engine's design prioritizes durability over peak efficiency. The primary documented update (SIB 20-055-20) addresses oil consumption in early builds; later models feature revised piston rings.

Data Verification Notes

Oil Specs: Requires FCA MS-6395 (5W-30) specification (FCA Owner's Manual). ACEA A3/B4 oils are generally compatible if MS-6395 is unavailable.

Emissions: Euro 6d certification applies universally to all EJK engines (VCA Type Approval #VCA/EMS/9123). No market-specific variations.

Power Ratings: Measured under SAE J1349 standards. Output is consistent across applications (FCA TIS Doc. K91300).

Primary Sources

FCA Technical Information System (TIS): Docs K91234, K91235

VCA Type Approval Database (VCA/EMS/9123)

FCA Service Information Bulletin (SIB) 20-055-20

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
Identification Guidance

Locate the engine code stamped on the front face of the left cylinder bank, near the alternator (FCA TIS K91250). The 8th VIN digit for EJK-equipped vehicles is typically 'J'. All EJK engines feature a black composite intake manifold with "3.0L V6" branding and lack any turbocharger or supercharger hardware. Critical differentiation from other 3.0L FCA V6 engines: EJK uses port injection only (no direct injection) and has a specific casting mark on the block. Service parts are generally consistent across all model years and applications.

Identification Details

Evidence:

FCA TIS Doc. K91250

Location:

Stamped on the front face of the left cylinder bank, near the alternator (FCA TIS K91250).

Visual Cues:

  • Black composite intake manifold with '3.0L V6' branding.
  • No turbocharger or supercharger components visible.
Compatibility Notes

Evidence:

  • FCA TIS Doc. K91300
  • FCA SIB 20-055-20

E C U Software:

ECU software differs between Grand Cherokee and Wrangler for optimal torque delivery and emissions control. Swapping requires reprogramming.

Oil Consumption:

Early 2019-2020 engines may exhibit higher oil consumption. Verify if the piston ring update per SIB 20-055-20 has been performed.

Common Reliability Issues - JEEP EJK

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.

Frequently Asked Questions about JEEP EJK

Find answers to most commonly asked questions about JEEP EJK.

Research Resources

Comprehensive technical documentation and regulatory references

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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.

Official Documentation

Regulatory Compliance

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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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Last Updated: 16 August 2025

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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