The Engines of Choice

Caterpillar^® engines are particularly well suited in size, power and performance for locomotive traction engines. 3500 Family engines power hundreds of mainline and switcher locomotives worldwide. C15, C18, C27 and 3400 Family engine-powered generator sets provide Head End Power in passenger locomotives. A full range of Cat^® engines can also be found in maintenance-of-way equipment. Cat's new C175 ACERT Engine is building quite a reputation also.

Electronics: A performance edge

Railroads are moving toward intelligent locomotives, and the 3500C and C175 ACERT engine family fits right in. The electronic control module provides accurate, readily accessible diagnostic information and data. This self-diagnosing electronic system features a programmable protection system. 3500C and C175 ACERT engine electronics can be configured to integrate with the locomotive electronic control and monitoring systems. This gives you engine protection and intelligence, all combined with a higher power to weight ratio and world class fuel economy.

Built for life, built for service

The Caterpillar 3500C and C175 ACERT engine blocks incorporate extra iron in high-stress areas to deliver longer life. Service is simplified by design features like individual cylinder heads, access covers and easy-access oil, water and fuel pumps.

Auxiliary power

Gear-driven auxiliary drives on 3500 and C175 ACERT engines provide multiple options with plenty of reserve power for hydraulic pumps, auxiliary generators and other driven equipment. Cat C15, C18 and C27 ACERT engines are the engines of choice for Head End electric power generation on passenger commuter locomotives, both in new equipment and in units converted to passenger service.

Leading the way in emissions control

Today's Caterpillar^® engines offer some of the most advanced engineering features available in any diesel application to meet emission standards around the world. These include electronic controls, hydraulic electronic unit injectors, and other exclusive technologies to maintain gaseous emission levels within the regulations specified by UIC and the U.S.