Cummins' new lightweight X12 is an all-new 12L diesel engine designed for vocational and regional haul markets. Equipment Editor Jim Park gets up close with the X12 to see how the new engine performs on the road.
Cummins: New X15 Engine Offers High Performance, Economy, Reliability
Cummins officials say their next-generation X15 heavy-duty diesel series will offer new value through economy, performance, reliability and support when it replaces existing ISX15 models in January 2017. A year later, a new X12 will supersede the current ISX12.