Progress Rail has finished initial testing of a new type of Tier 4 locomotive, the EMD24B.
The EMD24B features a pre-1973 locomotive core that has been rebuilt to meet EPA Tier 4 emission standards.
It comes with a Cat® 3512C HD engine and after-treatment technologies that have been proven to lower emissions, Progress said in a news release.
The prototype is rated at 2,000 horsepower and has rebuilt EMD-style locomotive components, and a remanufactured under frame and cab from an EMD GP40 locomotive.
Progress is currently testing the unit in California on the Pacific Harbor Line to meet that state’s 3,000-hour in-service verification testing.