Traton Completes Navistar Merger, Looks to China, Electrification
Navistar Names Mathias Carlbaum CEO, President
Mathias Carlbaum — who has been leading the post-merger management of Navistar on behalf of the Traton Group — will succeed Persio Lisboa as CEO of Navistar International on Sept. 1.

Since April 2021, Mathias Carlbaum has been leading the post-merger management of Navistar on behalf of the Traton Group.
Photo: Navistar
Navistar’s board appointed Mathias Carlbaum as the new CEO and President of Navistar International, effective Sept. 1. He will succeed Persio Lisboa, who will retire.
Since April 2021, Carlbaum has been leading the post-merger management of Navistar on behalf of the Traton Group. German-based Traton Group completed its merger with Navistar as of July 1.
Previously, Carlbaum served as executive vice president of commercial operations at Scania.
In his 35 year-long tenure with the company and particularly in his recent roles as COO and CEO (since July 2020), Persio Lisboa was “instrumental in returning Navistar to profitability and launching and executing a solid strategy called Navistar 4.0,” Navistar officials said.
To reflect the existing corporate governance of other Traton Group companies, Navistar’s board also appointed a newexecutive board. Effective Sept. 1, the board will be made up of Carlbaun and five other members:
Walter Borst continues to be chief financial officer until he transitions his role to Do Young Kim on Jan. 1, 2022. It is intended that Borst will continue to serve as a member of Navistar’s Board of Directors thereafter. In his current function, Do Young Kim had been the project lead for Traton’s IPO and the merger with Navistar.
Michael Grahe, formerly chief technology officer of the Traton Group, will head operations, which covers the areas of product development and procurement. Current president of operations, Phil Christman, will remain at Navistar until March 2022 to oversee Mexico and Brazil, as well as transition related tasks.
Donna Dorsey will retain responsibility for people and culture.
Friedrich Baumann remains responsible for sales, marketing and aftersales.
Mark Hernandez will be also appointed to the executive board, responsible for manufacturing.
Since September 2016, Traton and Navistar’s “strategic alliance” has generated significant added value for both companies due to higher purchasing power and the integration of new technologies, Navistar officials said in a press release. At the start of 2020, Traton submitted an initial offer to acquire all of the ordinary shares in Navistar. A binding merger agreement was signed in November 2020. The merger was closed on July 1.
More Equipment

Atlas Expands Kodiak Driverless Truck Fleet in Permian Basin
Atlas Energy Solutions is expanding autonomous frac sand hauling in the Permian Basin with a second load-out location and plans for 100 driverless trucks by mid-2027.
Read More →
Putting Mack’s Command Steer to the Test
A test drive of Mack’s Command Steer active steering system evaluates how it can make truck driving easier and less tiring.
Read More →
Mack, Volvo Expand DEF Derate Software Updates
The updated software gives Mack and Volvo truck owners more time to address DEF-related issues before the engine derates or the vehicle goes into reduced-speed inducement, following new EPA guidance.
Read More →
Rush, MCT Team Up to Grow Refrigeration Service Network
The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.
Read More →
Cummins Adjusts 2027 Engine Rollout After EPA Proposal
The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.
Read More →
Aurora Rolls Out Next Generation of Driverless Trucks for Commercial Freight
Aurora's latest autonomous trucks it's rolling out with International feature lower-cost hardware designed for a million miles as the company expands commercial driverless freight operations across the U.S. Sun Belt.
Read More →
Peterbilt 589 Spotlight: A Close Look at a Custom Working Truck [Video]
There's more to this customized Peterbilt Model 589 and Great Dane refrigerated trailer than chrome and stainless (although there's plenty of that too!) A veteran driver explains the design choices and practical features behind this working truck.
Read More →
Continental Expands Retread Lineup With New ContiTread HDL 5 EP
New long-haul drive retread is designed to improve fuel efficiency, extend tread life, and lower fleets' cost per mile.
Read More →
EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty
The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.
Read More →
Cummins, Paccar Ease DEF Derates After EPA Guidance
Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.
Read More →
