Caterpillar last week announced that its C13 ACERT and C15 ACERT engines have received the United States Environmental Protection Agency’s Tier-4 emissions certification. The engines are the latest to receive certification in the 130- to 560-kW power category.

The C13 ACERT and C15 ACERT, in addition to the previously announced certified C9.3 ACERT engine families, will power a number of Cat products including mid-range track-type tractors, motor graders and hydraulic excavators in a wide variety of customer applications. Additionally, the C9.3 ACERT engine and its 13- and 15-liter counterparts are offered in several configurations and ratings for use by customers in the industrial, agriculture and petroleum markets.

“Our Tier-4 focus is not just about emissions — it is about the customer as well,” said Steve Gosselin, marketing and product support vice president. “Our ultimate goal is to exceed expectations by developing products that are more efficient, add more customer value and reduce emissions without sacrificing performance.”

It is projected that Caterpillar will accumulate nearly one million hours of testing on Tier-4 Interim//Stage IIIB engines and machines by the end of 2010.