Cummins will debut four new engines for EPA Tier 4 Interim and EU Stage IIIB emissions regulations at Bauma 2010 in Munich, Germany from April 19-25. The ‘4 More For Tier 4′ engine reveal will take place from 10.15 am on stand 319/410 in Hall A4 on the first day of the show and will mark the debut of Cummins’ next generation of four-cylinder QSB3.3 and QSB4.5 engines for compact equipment, together with a first showing of the all-new QSX11.9 and QSX15 heavy-duty engines. The Tier 4 Interim engines will be displayed at Bauma as complete air-intake to exhaust aftertreatment systems, with all key technologies integrated by Cummins.

The compact 3.3-litre and 4.5-litre QSB engines extend across the 56 kW to 119 kW power range, enabling OEMs to standardise four-cylinder installations with common Tier 4 Interim engine architecture. The all-new 11.9-litre and 15-litre QSX engines cover a broad 224 kW to 447 kW power band. The heavy-duty duo share the same performance-enhancing technology for Tier 4 Interim, such as Cummins’ new XPI common-rail fuel system.

“Bauma is one of the world’s biggest equipment shows and offers an ideal opportunity for Cummins to present our four latest Tier 4 Interim engines to the industry,” said Hugh Foden, Executive Director, Cummins Off-Highway Business. The company says the four-cylinder QSB engines and the heavy-duty QSX engines bring a new power capability to the equipment industry for Tier 4 that goes beyond achieving very low emissions. They will realise up to 5% higher fuel efficiency and improve productivity with faster engine response. “Additionally, our single-system approach, from air-intake to exhaust aftertreatment, enables easier machine integration for OEMs,” added Foden.

The four new engines will join the previously shown QSB6.7 and QSL9 MidRange family at the Cummins booth to complete a wide 56 kW to 447 kW power lineup for Tier 4 Interim.