Heavy-Duty Truck Engines, Class 7 and Class 8
Heavy-Duty Truck Engines, Class 7 and Class 8. You can have it all with the 2021 X12 and 2021 X15 powertrain lineup from Cummins. With a focus of uptime, total cost of ownership and ease of operations, the Cummins heavy-duty platforms bring you the best 15-liter and 12-liter engines yet. Starting with the most reliable 15-liter ever produced ...
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