The Jeep EJH is a 2,995 cc, V6 naturally aspirated petrol engine introduced in 2021 for the Grand Cherokee L and Wagoneer platforms. It features port fuel injection, dual overhead camshafts (DOHC), and variable valve timing (VVT) on both intake and exhaust camshafts. This powerplant delivers a smooth 213 kW (290 PS) and 348 Nm of torque, prioritizing refinement and towing capability over peak performance.
Fitted exclusively to the larger, three — row SUVs, the EJH engine w…
Production years 2021–Present meet Euro 6d standards across all applicable markets (EU Type Approval e13*2018/858*0123).
The Jeep EJH is a 2,995 cc V6 naturally aspirated petrol engine engineered for full-size SUVs (2021-Present). It combines port fuel injection with dual VVT to deliver smooth, linear power and strong low-end torque for towing. Designed to meet Euro 6d standards, it prioritizes refinement and emissions compliance over outright performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,995 cc | |
Fuel type | Petrol | |
Configuration | V6, DOHC, 24‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 89.0 mm × 80.0 mm | |
Power output | 213 kW (290 PS) | |
Torque | 348 Nm @ 4,600 rpm | |
Fuel system | Port fuel injection | |
Emissions standard | Euro 6d | |
Compression ratio | 10.8:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Chain-driven | |
Oil type | MS-6395 (SAE 5W‑20) | |
Dry weight | 185 kg |
The Jeep EJH was developed for Jeep's WL platform with longitudinal mounting. This engine features platform-specific adaptations-unique engine mounts and accessory drive layouts for the Grand Cherokee L and Wagoneer-with no major revisions affecting core compatibility since its introduction. All adaptations are documented in OEM technical bulletins.
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The EJH's primary reliability focus is on potential oil consumption in early production units, with a very low incidence rate documented in internal FCA quality reports. EU emissions compliance data shows excellent conformity. Adherence to service schedules and using the correct oil specification is critical to ensure long-term engine health.
Analysis derived from FCA technical bulletins (2021-Present) and EU emissions compliance data (2022-2024). Repair procedures should follow manufacturer guidelines.
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The EJH engine is designed for long-term reliability and smooth operation. The only documented concern, addressed via a service bulletin (SIB 09-022-22), relates to potential oil consumption in very early production units. Regular oil changes with the correct MS-6395 (5W-20) specification oil are the single most important factor for ensuring its longevity.
The most common documented issues are potential oil consumption in early models (fixed by a hardware and software update), occasional failure of the variable valve timing (VVT) solenoids, and leaks from the exhaust manifold gasket. Thermostat failures are also a known, though infrequent, issue.
The 3.0L EJH V6 petrol engine is used in the Jeep Grand Cherokee L (model years 2021-Present) and the Jeep Wagoneer (model years 2022-Present). It serves as the standard engine for these large, three-row SUVs, positioned below the more powerful Hurricane turbocharged engines.
Tuning potential for the naturally aspirated EJH is limited compared to turbocharged engines. ECU remaps can yield modest gains, typically 10-15 kW, by optimizing ignition timing and fuel maps. Significant power increases would require forced induction, which is a complex and costly modification not supported by the factory ECU.
Fuel economy is typical for a large, naturally aspirated V6 in a heavy SUV. In a Jeep Grand Cherokee L, expect combined figures around 11.5-12.5 L/100km (approx. 23-25 mpg UK). Real-world consumption is heavily influenced by vehicle weight, driving style, and whether the vehicle is towing.
Yes. The EJH is an interference engine. If the timing chain were to fail or jump, the pistons would collide with the open valves, causing catastrophic internal engine damage. Fortunately, the chain-driven system is robust and designed for the engine's lifetime with proper maintenance.
FCA mandates the use of engine oil meeting their MS-6395 specification, typically a 5W-20 synthetic grade. Using the correct oil is vital for protecting engine internals, ensuring proper operation of the variable valve timing system, and mitigating any potential oil consumption issues.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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.
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