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Kenworth T800 mixer truck.
Newsby News/Media ReleaseDecember 4, 2025

Kenworth Expands Mixer Truck Automated Transmission Options

The Pacaar TX-12 Pro and TX-18 Pro automated transmissions are designed and engineered to work with Paccar MX-11 and MX-13 engines.

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Kenworth SuperTruck2
Newsby News/Media ReleaseAugust 27, 2025

Kenworth and WyoTech Launch Kenworth NextTech Program

A new program developed jointly by Kenworth and WyoTech is intended to directly address the ongoing diesel technician shortage.

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Newsby News/Media ReleaseMay 28, 2025

Kenworth Expands Paccar TX-12 Pro Transmission Availability for MX-13 Engines

The Paccar TX-12 Pro automated transmission is now available with the Paccar MX-13 engine for Kenworth’s T680, T880, and W990 models, designed to optimize performance for on- and off-highway applications.

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Cut-away of a Peterbilt Model 579 tractor with a Paccar MX-13 CARB compliant engine.
Newsby News/Media ReleaseJune 6, 2024

Peterbilt Unveils CARB-Compliant MX-13 Engine

Peterbilt has announced a new, low NOx, CARB compliant diesel engine for select truck models.

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Newsby Jack RobertsNovember 9, 2023

Sneak Peek: Peterbilt’s New Model 589 Low-Roof Sleeper

Peterbilt offered a sneak-peek at an all-new, 72-inch, low-roof sleeper version of the new Model 589 at a customer event at the Texas Motor Speedway. HDT has this exclusive first look.

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Newsby StaffJune 14, 2023

Peterbilt Upgrades TX-18 Pro Automated Transmission

Peterbilt has added new features to its TX-18 automated transmission, including now-standard rock-free mode.

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Newsby StaffMay 6, 2021

Paccar Unveils 2021 MX Engines

The 2021 Paccar MX-11 and Paccar MX-13 engines for Kenworth’s Class 8 truck lineup feature re-designed internal components to enhance fuel economy.

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Newsby Deborah LockridgeMarch 12, 2021

Kenworth Updates MX Engines, Teases New Medium-Duty Truck

Kenworth told Work Truck Week attendees that it has enhanced its MX engines for 2021, improving fuel economy and durability – and teased a new medium-duty truck to be introduced soon.

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Newsby Jack RobertsFebruary 3, 2021

Peterbilt Unveils New Model 579 Highway Tractor

The New Model 579 truck is the first major upgrade by Peterbilt since the Model 579 first debuted in 2012.

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Articlesby Jack RobertsFebruary 3, 2021

Test Drive: Peterbilt’s New Model 579 UltraLoft

Peterbilt’s latest iteration of its Model 579 highway tractor isn’t just an upgrade. It may be one of the most important trucks Peterbilt has ever built. Jack Roberts got to drive one before it was officially unveiled.

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