Mack Trucks Unveils Groundbreaking Granite and Keystone Models at ConExpo 2026

Las Vegas Motor Speedway hosted the spectacular unveiling of Mack Trucks' cutting-edge Granite and Keystone models, showcasing groundbreaking features ahead of ConExpo-Con/Agg 2026. According to Mack Trucks President Stephen Roy, this launch marks a pivotal moment in the company’s enduring 125-year legacy. These models are set to redefine standards within the vocational truck sector and enhance the way drivers operate in challenging environments.

Introducing the All-New Granite

The Granite model embodies a complete redesign aimed at elevating worksite safety and driver comfort. Among its standout features are industry-first safety technologies tailored for tough job conditions, including the innovative Mack Protect™ suite, featuring front radar, camera systems, and comprehensive 270-degree coverage. This suite not only enhances safety during operation but also introduces unmatched protective features to the North American vocational market.

One noteworthy advancement is the Electronic Park Brake (ePark Brake), providing rollaway protection while simplifying the gear shifting process. Furthermore, each Granite model is equipped with E911 auto-call capability, ensuring emergency responders are contacted in the event of an accident, showcasing Mack's commitment to driver safety.

Enhanced Performance And Comfort

Mack has collaborated closely with professional drivers to develop an all-new cab that delivers increased comfort and ample space, enhancing the overall driving experience. With an impressive nine inches of additional width in the cab, drivers will appreciate the ergonomic designs, which previously drew inspiration from feedback during prototype evaluations.

The Granite utilizes the powerful new Mack MP®13 engine, delivering up to 540 horsepower, ensuring that it can tackle the most demanding tasks with increased fuel efficiency. Coupled with the updated mDRIVE™ automated manual transmission, drivers can expect quicker shifts and superior handling in challenging conditions, including steeper grades.

Introducing the Keystone

Alongside the Granite, Mack introduced the Keystone, designed explicitly for vocations requiring exceptional versatility and presence both on and off-road. Ideal for hauling agricultural goods, logging, and delivering construction materials, the Keystone is balanced for performance on any terrain.

Highlighted by a robust suspension system, along with enhanced ground clearance and strategic design elements, the Keystone ensures seamless transitions between highway travel and rugged off-road conditions. It shares many technological advancements with the Granite, including safety features and ergonomic designs tailored to enhance driver comfort.

A Legacy of Durability and Reliability

Both models retain the longstanding Mack tradition of durability, further supported by a new modular bumper system that addresses vocational application complexities without compromising on aesthetic appeal. This design improvement facilitates production efficiency while keeping the signature Mack look intact, catering to the brand's core customers who value rugged reliability.

Mack's commitment to remaining connected translates across both vehicles, utilizing Mack Connect telematics. This innovative platform grants real-time monitoring for fleets, facilitating proactive maintenance, thereby reducing downtime, enhancing efficiency, and promoting overall productivity.

The Granite and Keystone both symbolize a bold new direction for Mack Trucks, leveraging cutting-edge technology to meet the evolving demands in the vocational truck market. The forthcoming availability in late 2026 represents an exciting time for customers who rely on robust, reliable trucks capable of handling their toughest jobs.

In conclusion, as Mack Trucks continues to innovate and expand its product lineup, the launch of the Granite and Keystone reflects a deeper understanding of driver needs and the operating environments faced each day. With high expectations set for performance and safety, these new models are positioned to drive the industry forward, reinforcing Mack's legacy while adapting for future demands.