Caterpillar is developing EU Stage V-compliant engines across its industrial product line, from the two-cylinder C0.5 to the 12-cylinder, 32-liter C32. Goals for Cat Stage V engines include developing more efficient after-treatment systems, simplifying installation in OEM-customer machines, and providing added value for end users of OEM machines through increased productivity, increased fuel efficiency, and exceptional reliability.
The Cat C9.3B engine, for example, has been awarded EU Stage V emissions certification and is now in production – more than 10 months ahead of the industry’s newest and most stringent regulatory requirements.
Building on the core engine that has been in production since 2011, the six-cylinder, 9.3-liter C9.3B has logged more than 200 million hours in real-world, off-highway operation. With a proven, reliable core engine, coupled with extensive diesel-particulate-filter (DPF) experience, Caterpillar has focused EU Stage V engine development on simplifying design, improving performance, and reducing installation complexity.
C9.3B combines a new high-pressure/common-rail fuel system with simplified air, electrical, and after-treatment systems to produce up to 456 horsepower and 1,540 foot/pounds of torque, resulting in 18 percent more power, 21 percent more torque, and 12 percent less weight, compared with its predecessor.