Cummins Inc. announced today that it has submitted its 5.9-liter ISB engine for certification to the EPA's 2002 2.5-gram NOx+NMHC standard. Production will begin upon receipt of the certification, which is expected by Cummins early this summer.
Cummins began sending prototype engines to vehicle manufacturers more than a year ago, enabling them to test their installation processes and prove the engine's capability well ahead of the EPA deadline.
"By submitting the application for certification early, we again demonstrate our commitment to delivering proven, reliable products to our customers," said executive director – marketing Thomas Kieffer. "And customers will love this engine because they can maintain their maintenance intervals, have better performance and up to 2% better fuel economy."
The ISB was introduced in Europe more than a year ago. To meet the new EPA emissions standard, a cooled exhaust gas recirulation (EGR) subsystem was added. In addition to the base engine experience in Europe, the new ISB with cooled EGR will have more than one-million field test miles completed by time of production.
The engine is designed for medium-duty trucks, step vans and buses.
"The reputation of this product is excellent," said Kieffer. "We are looking forward to a successful launch in North America."