US truck makers look for cover as Trump’s tariffs raise costs

U.S. heavy-duty truck manufacturers face significant cost disadvantages due to Trump-era tariffs on imported materials and non-USMCA compliant parts, leading to a roughly 3% cost premium compared to rivals building in Mexico under USMCA. This disparity is prompting U.S. firms like Volvo and Paccar to increase investment in Mexican production or boost sourcing of USMCA-certified components to mitigate tariff exposure. The industry's cost dynamics and production strategies could be further reshaped by a new U.S. Commerce Department Section 232 probe into truck imports, which may result in new tariffs or exemptions.

Analysis

U.S. heavy-duty truck manufacturers are facing a significant structural cost disadvantage due to Section 232 tariffs on imported steel, aluminum, and copper. This trade policy places domestically produced trucks at an estimated 3% cost premium compared to USMCA-compliant models assembled in Mexico, according to Bernstein. The tangible impact is evident in company-level performance, where Daimler Truck, with its extensive Mexican operations, reported a first-quarter gross margin of 21.96%, substantially higher than the 18.69% margin for U.S.-focused Paccar. In response, affected firms are adjusting their strategies; Paccar anticipates $75 million in Q3 tariff costs and is working to source more USMCA-certified parts, while Volvo is increasing its Mexico plant investment by $300 million. This dynamic is occurring as the industry anticipates an 11% year-on-year production decline in 2026. The entire competitive landscape is subject to further disruption from a new U.S. Commerce Department Section 232 probe into truck imports, which could introduce new tariffs or exemptions, creating significant regulatory uncertainty for the sector.

Key Decisions for Investors

• Investors in U.S.-centric manufacturers like Paccar (PCAR) should closely monitor gross margins and progress on sourcing USMCA-compliant components, as its current domestic footprint creates a clear cost disadvantage relative to peers.
• Companies with established Mexican production, such as Daimler Truck and Volkswagen's Traton, currently hold a structural cost advantage, but this position is exposed to regulatory risk from the pending U.S. Commerce Department Section 232 probe.
• Given the combination of a forecasted 11% production decline in 2026 and major regulatory uncertainty, it is prudent to watch for the outcome of the Section 232 investigation as a key catalyst before adjusting positions in the heavy-duty truck sector.