John Deere Power Systems has announced the naming convention and power ratings for its complete lineup of Final Tier 4/Stage IV mobile off-highway diesel engines, according to a company release.

The release noted the company is building on previous tier nomenclature, and the John Deere Final Tier 4/Stage IV engine names will begin with the PowerTech brand and add a three-letter-long suffix that identifies the specific technology package that is used.

In terms of power ratings for the highly-used John Deere equipment, the company noted that specific letters will indicate the technology that is used, ranging from variable geometry turbochargers to wastegate turbochargers.

“Our Final Tier 4/Stage IV naming convention provides customers with simple, familiar identification of our engine models,” said Doug Laudick, manager of product planning at John Deere Power Systems.

Models and power ratings for the complete lineup of John Deere Final Tier 4/Stage IV engine lineup range from the PowerTech EWX 2.9 liter model with between 50 and 74 horsepower to the PowerTech PSS 13.5 liter version with a staggering 400 to 600 horsepower engine.

The company also announced that they will be exhibiting the next engines at Intermat 2012, an international event that showcases the latest equipment and techniques for construction and materials industries. A number of innovative additions to John Deere engines have allowed the business to meet the ever-changing regulations of the industry.