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T4F Q&A

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  • Helping Us All Breathe Easier

    The EPA's Tier 4 Final (T4F) emissions standards are making cleaner-running diesel engines and cleaner air for all of us.

  • Take A Look Inside

    Many innovative strategies were used to make diesel engines Tier 4 Final (T4F)-compliant. Fewer exhaust emissions are only one benefit; T4F systems also save fuel and can produce more power.

  • Get The Job Done Right

    Selecting the right size of welder/generator helps maximize your resource efficiency and reduce your emissions footprint.

  • Have Questions?

    Look here for answers to many common questions about the new Tier 4 Final (T4F) emissions regulations.

Cleaner Equipment, Cleaner Air

Tier 4 Final (T4F) is the latest set of EPA emissions standards for diesel engines. T4F has resulted in cleaner, more-powerful, diesel engines.

Understanding the Impact of T4F

  • A commitment to a cleaner world
  • A commitment to a cleaner world

    Miller has redesigned its diesel engine-driven welder/generators to reduce emissions and maximize power output. The result is a full product lineup of exceptionally clean and powerful diesel engine-driven welder/generators.

  • New engines, new equipment
  • New engines, new equipment

    To comply with the new T4F regulations, manufacturers have extensively modified their engines. These new engines power a select group of Miller® welder/generators in our Big Blue® product line.

  • Get the right equipment for the job
  • Get the right equipment for the job

    Miller offers solutions for both large and small jobs, including higher-horsepower machines that are subject to T4F regulations, as well as machines with less than 25 horsepower, which comply with different EPA regulations.