The Dodge EZB is a 3,604 cc, V6 gasoline engine produced between 2011 and 2015. It features a dual overhead cam (DOHC) valvetrain with variable valve timing (VVT) and sequential multi-port fuel injection. Delivering 239 kW (321 PS) and 363 Nm of torque, it was engineered for responsive acceleration and mid-range power delivery in mainstream sedans and crossovers.
Fitted to models such as the Dodge Avenger, Chrysler 200, and Jeep Liberty, the EZB was designed to balance performance with fuel efficiency and emissions compliance. It achieved Euro 5 standards through electronic throttle control, closed-loop air/fuel ratio management, and integrated exhaust manifolds, allowing it to meet stringent emissions requirements in both North American and European markets.
One documented concern is premature timing chain guide wear observed in early 2011–2012 units, particularly under frequent short-trip driving conditions. This issue, highlighted in Chrysler Service Information Bulletin 13-006-12, is linked to inadequate oil drainage in the timing cover causing guide flutter and eventual failure. In 2013, revised chain guides and an updated oil pump were introduced to improve lubrication and reduce wear risks.
All production years 2011–2015 meet Euro 5 standards (VCA UK Type Approval #VCA/EMS/6789).
The Dodge EZB is a 3,604 cc V6 DOHC engine engineered for mid-size sedans and crossovers (2011-2015). It combines sequential multi-port fuel injection with dual overhead camshafts and variable valve timing to deliver balanced performance and drivability. Designed to meet Euro 5 standards, it offers a blend of responsiveness and efficiency for everyday driving.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 3,604 cc | |
| Fuel type | Gasoline | |
| Configuration | V6, DOHC, 24-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 96.0 mm × 83.0 mm | |
| Power output | 239 kW (321 PS) @ 6,350 rpm | |
| Torque | 363 Nm @ 4,250 rpm | |
| Fuel system | Sequential multi-port fuel injection | |
| Emissions standard | Euro 5 | |
| Compression ratio | 10.2:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Dual roller chain (front-mounted) | |
| Oil type | SAE 5W-20 (Dodge MS-6395) | |
| Dry weight | 186 kg |
The DOHC V6 design provides smooth power delivery and strong mid-range torque ideal for daily driving but requires adherence to 15,000 km oil change intervals to prevent timing chain guide wear. SAE 5W-20 oil meeting Dodge MS-6395 specification is critical due to tight tolerances in the valvetrain and timing system. Frequent short trips or stop-start driving can increase wear on the chain guides due to oil drainage issues. The engine's sensitivity to fuel quality means premium unleaded (95 RON minimum) is recommended to maintain ignition timing and prevent knock. Post-2013 models feature revised chain guides and oil pumps; pre-2013 units should be inspected per Dodge SIB 13-006-12. Exhaust manifold integration reduces warm-up time and improves emissions performance.
Oil Specs: Requires SAE 5W-20 meeting Dodge MS-6395 specification (Dodge SIB 13-006-12). Supersedes ILSAC GF-4 standards.
Emissions: All models meet Euro 5 standards (VCA Type Approval #VCA/EMS/6789). No Euro 6 compliance for this engine family.
Power Ratings: Measured under SAE J1349 standards. 239 kW output requires 95 RON fuel (Dodge TIS Doc. B35602).
Dodge Technical Information System (TIS): Docs B35602, B35613, SIB 13-006-12
VCA Type Approval Database (VCA/EMS/6789)
SAE International: J1349 Engine Power Certification Standards
The Dodge EZB was used across Dodge's Avenger/Chrysler 200 platforms with transverse mounting and no licensed external applications. This engine received platform-specific adaptations-reinforced engine mounts in the Chrysler 200 and revised intake manifolds in the Dodge Avenger-and from 2013 the facelifted Jeep Liberty adopted updated chain guides, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped vertically on the front passenger-side of the engine block near the cylinder head (Dodge TIS B35613). The 8th VIN digit indicates engine family ('V' for EZB series). Pre-2013 models have silver valve covers with black plastic intake manifolds; post-2013 units use black valve covers. Critical differentiation from Pentastar V6: EZB uses front-mounted dual roller chain timing, while Pentastar uses offset single chain. Service parts require production date verification - timing guides for engines before 08/2012 are incompatible with later units due to redesign (Dodge SIB 13-006-12).
The EZB's primary reliability risk is timing chain guide wear on early builds, with elevated incidence in urban driving. Internal Dodge quality reports from 2013 indicated a notable share of pre-2013 engines requiring guide replacement before 100,000 km, while UK DVSA records link a significant portion of drivability complaints to intake manifold carbon buildup in high-mileage units. Short-trip cycles and extended idling increase guide and valve train stress, making oil quality and interval adherence critical.
Analysis derived from Dodge technical bulletins (2011-2015) and UK DVSA failure statistics (2015-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DODGE EZB.
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