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 engineered for North American markets seeking strong acceleration and highway stability. Emissions compliance is achieved through integrated exhaust manifolds, dual catalytic converters, and closed-loop oxygen sensor feedback, meeting EPA Tier 2 Bin 5 and SULEV30 standards. The engine's design prioritizes thermal efficiency and reduced internal friction for improved fuel economy under mixed driving conditions.
One documented concern is intake manifold runner control (IMRC) actuator failure in early 2016–2018 units, particularly in high-humidity environments. This issue, referenced in Dodge Technical Service Bulletin 21-010-18, can lead to reduced low-end torque and check engine lights. From 2019 onward, revised actuator materials and updated ECU calibration significantly improved long-term reliability across the EZH platform.
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 EZH's PFI system provides strong mid-range power ideal for towing and highway passing but requires strict adherence to 10,000-mile (16,000 km) oil change intervals to prevent timing chain wear and IMRC actuator degradation. SAE 5W-20 SN specification oil is essential due to its thermal stability and deposit control in high-temperature combustion environments. Use of Top Tier detergent gasoline is strongly recommended to minimize intake valve coking. Pre-2019 models should be inspected for IMRC actuator integrity per Dodge TSB 21-010-18. Extended idling and short-trip driving increase carbon buildup, making periodic intake cleaning advisable.
Oil Specs: Requires API SN or ILSAC GF-5 specification (Dodge Owner's Manual 2018). Not compatible with older SM or SL oils.
Emissions: SULEV30 applies to 2019–2023 models (EPA ARB#DOD-EZH-2019). Earlier models meet Tier 2 Bin 5.
Power Ratings: Measured under SAE J1349. Output consistent across North American markets with 91 RON fuel (Chrysler PT-2017).
Dodge Technical Service Bulletins (TSBs): 21-010-18, 18-010-17, 24-021-19
Chrysler Engineering Documentation: CHY-EZH-V6, EZH-CR-102
EPA ARB Certification Database (DOD-EZH-2019)
SAE International: J1349 Engine Power Test Code
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.
Locate the engine code stamped on the passenger-side cylinder head near the intake manifold (Dodge TSB 18-010-17). The 8th VIN digit indicates engine type ('V' for EZH V6). Pre-2019 models have silver valve covers with black plastic timing covers; post-2019 units use black valve covers with revised IMRC actuator. Critical differentiation from Pentastar 3.6L non-EZH: EZH uses revised intake manifold with integrated actuators, while earlier variants use simpler flap systems. Service parts require model-year verification—IMRC actuators from pre-2019 EZH engines are not compatible with 2019+ units due to material and calibration changes (Dodge TSB 21-010-18).
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.
Find answers to most commonly asked questions about DODGE EZH.
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