The ISB6.7 G engine will be based on the Cummins ISB6.7 diesel engine and will use Cummins Westport’s spark-ignited, stoichiometric cooled exhaust gas recirculation technology.
There are three versions of heavy-duty natural gas engine technologies available or in development in North America.
Peterbilt Motors Company announced it will offer the Cummins Westport ISX12 G engine starting next year. The engine will be rated up to 400 horsepower and 1,450 pounds of torque. It features spark ignition technology ...
The new engines will deliver up to a 2 percent fuel economy improvement over comparable engines being produced today.
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