Progress Testing New Tier 4 Switcher


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.


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