Key Highlights
- Stellantis debuts the all-new 2.0-liter Hurricane 4 Turbo four-cylinder engine.
- The engine produces 324 horsepower and 332 lb.-ft. of torque, outperforming many comparably sized engines.
- Innovative turbulent jet ignition (TJI) technology enhances combustion efficiency.
- Variable geometry turbocharger maximizes power output across a wide rpm range.
New Engine Boosts Performance and Efficiency for Stellantis
Auburn Hills, Mich. – On October 28, 2025, automotive giant Stellantis unveiled the all-new 2.0-liter Hurricane 4 Turbo four-cylinder engine. This advanced engine promises to significantly enhance performance and efficiency in various vehicle models, starting with the 2026 Jeep® Grand Cherokee.
Innovative Technology for Enhanced Performance
The Hurricane 4 Turbo incorporates several cutting-edge technologies that set it apart from traditional engines. One of the key innovations is its use of turbulent jet ignition (TJI) combustion technology, which originates in global, top-tier racing engines. This system uses a spark plug to ignite a small amount of fuel in a pre-chamber on each cylinder, then jets this burning fuel into the main combustion chamber for a faster and more complete burn.
Additionally, the engine utilizes a variable geometry turbocharger that delivers up to 35 psi (2.4 bar) of boost pressure at low engine speeds. This allows the engine to produce 90% of its peak torque from 2,600–5,600 rpm and reach full torque by 3,000-4,500 rpm.
Efficiency and Economy with Hurricane 4 Turbo
The new engine is designed to be both powerful and fuel-efficient. According to Micky Bly, Stellantis senior vice president and head of Global Propulsion Systems, the Hurricane 4 Turbo uses 10% less fuel to deliver 20% more power than the current 2.0-liter DOHC I-4 engine. This makes it an attractive option for car manufacturers looking to meet stricter emission standards while maintaining performance.
The combination of port and direct fuel injection, along with the Miller Cycle operating strategy, ensures optimal efficiency during different driving conditions. Whether starting cold, idling, or reaching peak power, the system can adapt to provide the best possible performance and economy.
Construction and Assembly Details
Built on a robust die-cast deep skirt aluminum block, the Hurricane 4 Turbo features enhanced structural stiffness for better NVH management. The engine’s unique PTWA coating in the cylinder bores offers superior wear resistance compared to conventional liners. This technology, adapted from aerospace applications, ensures longer service life and improved heat transfer.
The Hurricane 4 Turbo is assembled at Stellantis facilities in Dundee, Michigan, with future production plans for Kokomo, Indiana. This strategic location allows the company to leverage local expertise and resources while ensuring consistent quality standards across all engines produced.
Stellantis’ Commitment to Innovation
The launch of the Hurricane 4 Turbo marks Stellantis’ ongoing commitment to innovation in automotive technology. With its focus on performance, efficiency, and environmental responsibility, this engine is expected to play a crucial role in shaping future vehicle designs across multiple brands within the Stellantis portfolio.
As Stellantis continues to invest in advanced engineering solutions, it aims to stay at the forefront of the global automotive industry. The success of the Hurricane 4 Turbo will not only benefit Jeep® Grand Cherokee owners but also pave the way for further advancements in engine technology from Stellantis.
