1. Technology For 2007 And Beyond Dr. Steve Charlton Executive Director – Advanced Engineering Cummins Inc.

2. Meeting The Challenge Engine Technology for 2007 Engine Technology for 2007 Aftertreatment Technologies Aftertreatment Technologies Vehicle System Integration Vehicle System Integration Industry Time Line Industry Time Line

3. Cooled-EGR Is The Foundation For 2007 And Beyond By October 2003, Cummins Will Have: By October 2003, Cummins Will Have: –1 Billion Miles Real-world Use –25,000 Heavy-duty Engines In Service No Changes For 2004 No Changes For 2004 Right Technology For 2007 And Beyond Right Technology For 2007 And Beyond

4. Selective Catalytic Reduction (SCR) Lean NOx Catalyst NOx Adsorber Catalyst Candidate Aftertreatment Technologies Diesel Oxidation Catalyst Catalyzed Soot Filter Active Particulate Filter PM NOx

5. Active Particulate Filter 85-90% Efficient 85-90% Efficient Active Control Required For 2007 Active Control Required For 2007 Service Intervals Service Intervals –Ash Content –Catalyst Size –Oil Consumption Engine Management Critical Engine Management Critical Catalyzed PM Filter Oxidation Catalyst Wall Flow Filter Filter Assembly

6. Urea Selective Catalytic Reduction (SCR) Well Established Technology Well Established Technology Solution For Europe Solution For Europe Limited Sulfur Sensitivity Limited Sulfur Sensitivity Requires Reductant (Urea) Requires Reductant (Urea) –Protect From Freezing –Infrastructure US Economics Not Appealing For 2007 US Economics Not Appealing For 2007 Urea Tank With Heated Lines. Fleetguard SCR Catalyst

7. NOx Adsorber Durability Development Critical Durability Development Critical Requires Ultra-low Sulfur Fuel And Oil Requires Ultra-low Sulfur Fuel And Oil High Conversion Efficiencies High Conversion Efficiencies Lighter Duty Applications First Lighter Duty Applications First NOx Adsorber Catalyst Periodic Fuel Injection Lean Operation NOx Is Stored On The Surface Rich Operation NOx Is Converted To Nitrogen NOx N2

8. Future Solutions Demand System Integration Clean, Safe, and Efficient Business Solutions for End-Users Manufacturing Technologies Fuel Systems Exhaust Aftertreatment Air Handling Vehicle Integration Controls Fuel and Lubricant

9. MERLin: Mobile Emissions Research Laboratory

10. Achieving Results Today Demonstrating 2007 Emissions Levels Demonstrating 2007 Emissions Levels Focused On System Integration In Real World Use Focused On System Integration In Real World Use

11. Controls Integration The Vehicle, Engine And Aftertreatment Are Part Of A Single System Designed To Optimize Performance, Reliability, Cost And Emissions Critical for Success Vehicle Integration Critical Ultra Low Sulfur Fuel

12. Vehicle System Integration Aftertreatment Integration Aftertreatment Integration –Controls –Packaging Cooled EGR Integration Cooled EGR Integration –Established For 2002 Products Vehicle Integration With OEM Partners Vehicle Integration With OEM Partners

13. 200320042005200620072008200920102011 Year Industry Targets - 2007 Engine Technology Finalized Chassis Integration Fleet Field Testing Ultra Low Sulfur Fuel Available Emission Deadlines

14. Cummins Strategy For 2007 Deliver The Best Value For The Customer And The Environment. Deliver The Best Value For The Customer And The Environment. Vehicle Integration With Partner OEMs To Optimize Solution For End-user Vehicle Integration With Partner OEMs To Optimize Solution For End-user Active Particulate Filter For PM Active Particulate Filter For PM Target: No NOx Aftertreatment For Heavy-duty Engines In 2007 Target: No NOx Aftertreatment For Heavy-duty Engines In 2007