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EPA Final Tier 4/Stage IV

Final Tier 4/Stage IV Technology

Delivering our customer's expectations
We understand your concerns about Final Tier 4/Stage IV emissions regulations. That's why we're focused on adding the right engine technologies at the right time to maintain and maximize performance. This smart approach to meeting emissions regulations doesn't compromise on power, reliability, or ease of operation.

Meeting emissions while maximizing performance

You don't have to sacrifice one for the other. John Deere PowerTech™ Final Tier 4/Stage IV engines, 56 kW (75 hp) and above, are built on a proven platform of emissions control technologies including cooled exhaust gas recirculation (EGR), exhaust filters, and selective catalytic reduction (SCR).

Countless hours of testing in labs, field prototype machines, and in the toughest proving ground of all — rugged off-highway applications — have shown that John Deere engines have what it takes to get the job done.

Performance, reliability, and durability

These three words capture the core of the John Deere engine experience. You can count on John Deere engines to deliver reliable power day in and day out, year after year, and in the toughest off-highway working conditions. John Deere Final Tier 4/Stage IV engines maintain power density, torque, and transient response. It all adds up to more productivity, uptime, and value for your machines.

John Deere Advantage

The John Deere advantage


Our Integrated Emissions Control system for Final Tier 4/Stage IV is an optimized platform utilizing a variety of emissions control components, such as cooled EGR, smart exhaust filters, and SCR technology.  The entire system is optimized to meet emissions regulations while delivering maximum performance, reliability, and durability.


Fluid efficient

Our cooled EGR approach leverages the proven fuel efficiency of our PowerTech engine platform. We continue to develop solutions that consider not only fuel economy, but also total fluid economy.  John Deere Final Tier 4/Stage IV engines will meet or improve upon the current total fluid economy of our Interim Tier 4/Stage III B engine models.


Field proven

We’ve used cooled EGR since 2005 and have established a proven record of reliability. We have accumulated significant operating hours with our smart exhaust filter technology, and have a dedicated in-house aftertreatment team optimizing our own SCR solution. All components used in our Integrated Emissions Control system are designed to handle the rigors of off-highway applications.



John Deere designs, manufactures, and services the engine, drivetrain, exhaust filter, ECU, cooling, and other vehicle systems as part of a complete equipment package. This integrated process maximizes performance, operator convenience, total fluid economy, and overall value to the customer.


Fully supported

Get service when and where you need it at any of our 4,000+ service locations worldwide.  John Deere service personnel are highly trained technicians who stay on top of changing engine technologies and service techniques.

Final Tier 4 Literature

Final Tier 4 Video

Explore the Final Tier 4 Industrial Engines

See the PowerTech PSL engine

PowerTech PSL

93-129 kW (125-173 hp)

    EPA Final Tier 4 PowerTech PSL
    Industrial Engines



    We built on our success to deliver reliable equipment that makes your work easier and faster, with an emissions solution for small engines that's hassle free and worry free. For large engines, the John Deere Integrated Emissions Control system will allow our machines to set new benchmarks on power, performance, and efficiency.

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