TAMPA, Fla. — Cummins will be adding Exhaust Gas Recirculation (EGR) to its medium-duty engine lineup to meet the 2007 emissions standards.

Cummins’ ISL, ISC and ISB will use EGR, a diesel particulate filter and a crankcase ventilation system to meet the new EPA emissions standards, the company announced at a Technology and Maintenance Council event in Tampa.

The company says that by using common emissions solutions across its on-highway engine lineup, Cummins will deliver excellent reliability and performance.

“Cummins MidRange engines have demonstrated every advantage for our customers proven reliability, fuel economy, minimum maintenance and lowest cost of ownership,” said Dave Crompton, vice-president and general manager of the Cummins MidRange Engine Business. “The number of customers running Cummins MidRange engines continues to grow, demonstrating their confidence that Cummins has the best solution for medium-duty and vocational trucks.”

Jeff Weikert, Cummins’ 2007 MidRange program leader, added: “Our 2007 MidRange and Heavy-Duty field test units have already completed over 2.5 million miles in field testing that encompasses all altitudes, temperatures and conditions, and over 20,000 abusive test cell hours. We have shared our experience across platforms to create a very solid lineup. We believe customers will really like the increased performance of these engines.”

Cummins confirmed its entire MidRange engine lineup will continue to use High Pressure Common Rail fuel systems, enhanced for 2007 with higher injection pressures to optimize fuel economy and increase performance.

The 2007 engines will also feature variable geometry turbochargers that use a new electric actuator with faster response and improved precision in adjusting airflow to the engine.

The ’07 ISB will boast a displacement increase from 5.9 L to 6.7 L, resulting in increased horsepower and torque. Cummins reps also insist the ISB will be atop its class in terms of fuel economy. And an 18-quart oil pan option allows for standard drain intervals to be increased to 20,000 miles or 32,000 km.