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Paccar Taps Peter Ahrens to Head Kenworth
Leadership Change Comes as Paccar Pursues Larger Class 8 Market Share
Key Takeaways:
- Peter Ahrens will become Kenworth’s general manager July 1, replacing Jim Walenczak, who will lead Paccar’s DAF division in Europe.
- Kenworth has revamped its vocational lineup as emissions rules drive the phaseout of legacy 1.9-meter cabs and new electric models launch.
- After Ahrens’ promotion, Joe Adams was named assistant general manager of operations, moving from chief engineer after 26 years at Paccar.
Peter Ahrens will become general manager at truck maker Kenworth Truck Co., effective July 1, the Paccar division said May 27.
Ahrens will replace Jim Walenczak, who has held the position since January 2024, as Kenworth’s top executive.
Walenczak will become the senior executive at Paccar’s European truck division, DAF. He succeeds Harald Seidel as president of DAF. Seidel is set to retire July 17.
Ahrens most recently was Kenworth’s assistant general manager of operations. He has worked for Paccar for 15 years, including as managing director at Paccar subsidiary Leyland Trucks in the U.K. and before that as Paccar Parts’ director of product marketing and product director.
Ahrens takes the helm at Kenworth as the truck maker and sister company Peterbilt make a concerted push to increase their share of the North American heavy-duty truck market. Peterbilt is led by Jake Montero, who has been in the position since January 2025.
Paccar is aiming for a 35% share of the North American heavy-duty truck market, a senior executive told analysts Feb. 10.
The medium-term aim of the parent company of Kenworth and Peterbilt is set to be aided by tariffs and production plant flexibility, Senior Vice President Laura Bloch said at the truck maker’s analyst day in Denton, Texas.
Paccar brands won a combined 30.3% share of the Class 8 truck retail market in 2025, according to Omdia Automotive data. Peterbilt contributed 15.2% of that and Kenworth 15.1%. The two brands secured an overall share of 30.9% in 2024.
To bolster Kenworth’s slice of the heavy-duty truck market pie, the Kirkland, Wash.-based truck maker overhauled its vocational portfolio.
In March, Kenworth unveiled the C580 heavy-haul tractor and truck as a replacement for the C500 model. Production of the C580 is set to begin in January 2027.
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The C580 is set to combine the existing severe-duty C500 chassis with the comforts of Kenworth’s latest cab platform. (Kenworth)
Kenworth said in March 2025 that the C500 would be phased out due to emissions regulations. The company said at the time that it would be sunsetting the W900 and T800 models too, as part of a decision to end production of legacy 1.9-meter cabs. The C500 was introduced in 1972.
Alongside phasing out 1.9-meter cabs, Kenworth revamped its battery-electric vocational truck portfolio.
The truck manufacturer unveiled a battery-electric T880E, its first Class 8 battery-electric vocational truck, at the 2025 Advanced Clean Transportation Expo in Anaheim, Calif. At the same time, Kenworth launched a revamped version of the battery-electric configuration of its flagship T680 tractor.
Kenworth then launched two battery-electric models in December. The Class 8 T480E is available as a truck or tractor and offers up to 200 miles of range. The Class 7 or 8 T380E is also available as a truck or tractor and offers up to 280 miles of range.
After Ahrens’ promotion, Joe Adams was named Kenworth assistant general manager of operations. Adams was previously chief engineer at the company. The executive has been employed for 26 years at Paccar, including stints as director of purchasing and assistant chief engineer for North America embedded engineering.
