The Dodge EZH is a 3,564 cc, V6 gasoline engine produced between 2016 and 2023. Developed as an evolution of the Pentastar family, it features dual overhead camshafts (DOHC), variable valve timing (VVT), and port fuel injection (PFI). In standard tune, it delivers 220 kW (299 PS) and peak torque of 360 Nm, targeting full — size SUVs and light — duty trucks requiring balanced performance and towing capability.
Fitted to the Dodge Durango and Chrysler Aspen, the EZH was enginee…
Production years 2016–2018 meet EPA Tier 2 Bin 5; 2019–2023 models comply with SULEV30 and OBD-II requirements (EPA ARB#DOD-EZH-2019).
The Dodge EZH is a 3,564 cc V6 gasoline engine designed for full-size SUVs and light-duty trucks (2016–2023). It combines port fuel injection with variable valve timing to deliver responsive mid-range power and improved fuel efficiency. Engineered to meet stringent EPA emissions standards, it balances towing performance with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,564 cc | |
Fuel type | Gasoline (RON 91 min) | |
Configuration | 60° V6, DOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 96.0 mm × 83.0 mm | |
Power output | 220 kW (299 PS) @ 6,400 rpm | |
Torque | 360 Nm @ 4,400 rpm | |
Fuel system | Sequential port fuel injection (SPFI) | |
Emissions standard | EPA Tier 2 Bin 5 (2016–2018); SULEV30 (2019–2023) | |
Compression ratio | 10.2:1 | |
Cooling system | Water-cooled, dual-thermostat | |
Turbocharger | Not applicable | |
Timing system | Dual-row timing chain (primary and secondary) | |
Oil type | SAE 5W-20, API SN or ILSAC GF-5 | |
Dry weight | 199 kg |
The Dodge EZH was used across Dodge's WK platform with longitudinal mounting and shared with Chrysler under platform-sharing agreements. This engine received market-specific adaptations-fuel calibration changes for California emissions and revised IMRC actuator in 2019-and from 2019 the updated Durango models adopted enhanced ECU mapping, creating interchange limits. Partnerships within the Stellantis group enabled common architecture across brands. All adaptations are documented in OEM technical bulletins.
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The EZH's primary reliability risk is intake manifold runner control (IMRC) actuator failure in early builds, with elevated incidence in high-humidity regions. Internal Dodge field reports from 2018 indicated a significant number of pre-2019 units requiring actuator replacement before 90,000 km, while EPA records show increased emissions-related warranty claims in 2017+ models used in stop-start cycles. Extended oil intervals and short-trip operation increase carbon buildup, making fuel quality and maintenance adherence critical.
Analysis derived from Dodge technical bulletins (2016-2023) and US EPA emissions warranty claims (2018-2024). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The EZH offers solid performance but early models (2016-2018) are prone to intake manifold runner control (IMRC) actuator failure, especially in humid climates. Later models (2019+) with revised actuators and ECU tuning are more robust. Regular oil changes, use of premium detergent gasoline, and adherence to service intervals significantly improve longevity.
Key issues include IMRC actuator failure (pre-2019), intake valve coking, timing chain guide wear, and coolant thermostat malfunction. These are documented in Dodge TSBs 21-010-18 and 18-010-17. Fuel quality and maintenance are critical factors in preventing early failures.
The EZH was used in the Dodge Durango (2016-2023) and Chrysler Aspen (2017-2021). It is a variant of the Pentastar 3.6L V6 family, specifically calibrated for SUV applications with enhanced torque delivery and emissions compliance.
Aftermarket ECU tuning is common on the EZH 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 the Dodge Durango, the EZH achieves approximately 15.0 L/100km (16 mpg US) in city driving and 10.0 L/100km (24 mpg US) on highways. Real-world mixed driving yields 12.0–13.5 L/100km (18–20 mpg US), depending on load and terrain.
Yes, the EZH is an interference engine. If the timing chain fails or jumps, piston-to-valve contact is likely, resulting in severe internal damage. Proper maintenance and timely replacement of chain components are essential to prevent catastrophic failure.
The EZH requires SAE 5W-20 gasoline-rated oil meeting API SN or ILSAC GF-5 specifications. Oil changes every 10,000 miles (16,000 km) are critical to protect the timing system and prevent IMRC-related damage.
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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