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New ratings for MX-13 engines


Peterbilt will offer two new ratings of Paccar’s MX-13 engines in the 2019 model year.

A multi-torque 455-hp with a torque rating of 1,650 – 1,850 lb.-ft. is joined by a 405-hp model with 1,650 lb.-ft. of torque.

When packaged with the Paccar transmission and 40k rear axle, the new 405-hp MX-13 provides one of most fuel-efficient integrated powertrains for long-haul customers, the company says.

A Peterbilt 579 already sheds more than 500 lb. when spec’d with the full Paccar powertrain.

The new engine ratings will be available in January 2019.


John G Smith

John G Smith

John G. Smith is the editorial director of Newcom Media's trucking and supply chain publications -- including Today's Trucking, trucknews.com, TruckTech, Transport Routier, Canadian Shipper, Inside Logistics, Solid Waste & Recycling, and Road Today. The award-winning journalist has covered the trucking industry since 1995, when he was named the editor of Truck News and led the development of trucknews.com. Since then he has been a contributing editor to industry publications across North America, served as a frequent speaker on industry topics, and been honored for his coverage of business and technical matters alike.
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