Cummins receives Tier 3 certification for off-highway engine

Cummins announced Monday the first of its off-highway engines slated for the January 2005 Tier 3 emission standards deadline has been certified by the Environmental Protection Agency.

“Cummins’ significant investment in the right technologies has enabled our success in meeting regulations ahead of schedule,” said Bharat Vedak, vice president of industrial customer engineering.

The Cummins QSM11 Tier 3 will go into production in July with an in-cylinder combustion design and a footprint identical to its Tier 2 predecessor, which should minimize any installation difficulties for OEMs. The 11-liter, six-cylinder engine is rated from 290 to 400 horsepower.

Cummins originally announced its in-cylinder design for meeting the Tier 3 emission requirements in June 2002.

“Our Tier 3 engines will have an in-cylinder solution that reduces NOx by 40 percent without the use of expensive hardware,” said Vedak.

According to Jim Kelly, Cummins vice president and general manager, midrange and heavy-duty engine business, the Cummins Tier 3 design will extend into 2015 and Tier 4 with the addition of aftertreatment.

“This gives our customers the maximum possible platform stability in the face of coming requirements,” Kelly said.