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A Quieter, Smoother, More Fuel-Efficient Ride - Kenworth T680 with a PACCAR MX-13 Engine


The Kenworth T680s - with their excellent aerodynamics and more fuel-efficient PACCAR MX-13 engines - have delivered a significant 8 percent increase in fuel economy.

The 12.9-liter PACCAR MX-13 engine is characterized by its combination of proven technologies and state-of-the-art innovations that improve fuel economy. Power offerings are expanded with the addition of a 500 horsepower rating with 1,850 lb-ft of torque. The new PACCAR MX-13 engine’s common rail system with injection pressures to 2,500 bar, helps achieve the lowest possible fuel consumption, emission and noise levels.

With improved combustion control and reduced emissions, PACCAR MX-13 engines deliver the best in class fuel economy at a reduced weight and are designed to meet the demands of both linehaul and vocational heavy-duty truck applications.

CIT Group, Inc. is a full-line, commercial truck dealership group representing Kenworth Truck Company, Volvo Trucks North America, Mack Trucks, and Isuzu Commercial Trucks of America.  Serving territories in Illinois, Missouri and Indiana, the dealerships offer the best in New and Used Truck Sales, an extensive Parts inventory, the finest in truck Service and maintenance, and state of the art Body repair.  In addition, CIT offers in-house Rental, Leasing and Finance solutions to their customers. More information can be found at