Commercial Vehicle Thermal Systems: Electrification and Integrated Cooling Reshape Fleet Efficiency

Commercial vehicle thermal systems are becoming increasingly important as trucks, buses, and other fleet vehicles undergo powertrain modernization and electrification. These systems regulate temperatures across engines, cabins, batteries, power electronics, and transmissions, helping vehicles maintain reliable performance under demanding operating conditions. Rising commercial vehicle production, expanding freight transportation, stricter emission regulations, and increasing adoption of electric vehicles are supporting the need for more advanced thermal-management technologies.

A comprehensive market assessment by Markntel Advisor reveals that the Commercial Vehicle Thermal System Market was valued at around USD 18.1 billion in 2025 and is projected to grow from USD 19.24 billion in 2026 to USD 27.76 billion by 2032, registering a CAGR of 6.3% during 2026–2032. The commercial vehicle thermal system market analysis indicates that Asia-Pacific accounted for approximately 45% of revenue in 2026, while Engine Thermal Management Systems held around 42% and Heavy Commercial Vehicles represented nearly 46%.

Electrification Is Reshaping Thermal Management

The shift toward electric and hybrid commercial vehicles is changing the architecture of vehicle thermal systems. Battery packs, electric motors, power electronics, and charging components require controlled operating temperatures to maintain performance, durability, and efficiency.

The report notes that global electric truck sales exceeded 400,000 units in 2025, representing approximately 9% of total global truck sales. This expansion is increasing demand for battery cooling, heat pumps, coolant circulation, and other technologies designed to manage temperatures across electrified powertrains.

The need for effective thermal management is particularly important in heavy-duty applications, where vehicles may operate for long periods under high loads. Integrated systems can help maintain battery performance, regulate power-electronics temperatures, and manage cabin conditions without placing excessive demands on the vehicle's energy supply.

Stricter Regulations Are Supporting Technology Adoption

Emission and efficiency regulations are encouraging commercial vehicle manufacturers to improve powertrain performance while reducing environmental impact. Thermal management contributes to these objectives by helping engines, batteries, transmissions, and other components operate within efficient temperature ranges.

The International Energy Agency's transport analysis highlights the importance of electrification and efficiency improvements in reducing emissions from road transportation. As governments and fleet operators pursue lower-emission transportation, thermal technologies are becoming an important supporting component of vehicle modernization.

Regulatory developments are also extending to electric heavy-duty vehicles. In November 2025, the United Nations Economic Commission for Europe adopted a Global Technical Regulation establishing battery durability requirements for electrified heavy-duty vehicles.

These requirements reinforce the importance of maintaining battery performance over the vehicle lifecycle and create additional opportunities for advanced battery thermal-management technologies.

Engine Thermal Management Maintains Its Leading Position

Engine Thermal Management Systems accounted for approximately 42% of the sector in 2026, making them the leading system type. Internal-combustion and hybrid commercial vehicles continue to represent a substantial portion of the global fleet, sustaining demand for advanced engine cooling technologies.

Diesel, natural-gas, and hybrid powertrains generate considerable heat across engines, turbochargers, exhaust-gas recirculation systems, and lubrication circuits, particularly during long-haul and high-load operations. Efficient cooling helps maintain operating temperatures, support fuel efficiency, reduce component stress, and extend service life.

Although battery-electric vehicles are expanding, the continued presence of conventional and hybrid commercial vehicles means engine thermal management will remain relevant. Manufacturers are also improving thermal-control systems through electronically controlled pumps, valves, sensors, and other components that enable more precise temperature regulation.

Heavy Commercial Vehicles Generate Strong Thermal Demand

Heavy Commercial Vehicles accounted for nearly 46% of revenue in 2026, making them the leading vehicle category. Long-haul trucks, mining vehicles, construction equipment, and heavy logistics fleets often operate continuously under demanding conditions, generating substantial heat across engines, transmissions, braking systems, cabins, batteries, and power electronics.

Fleet operators increasingly prioritize vehicle uptime because thermal-system failures can contribute to maintenance requirements and operational disruptions. Advanced cooling technologies can help maintain stable operating conditions while supporting component durability and lower lifecycle costs.

The expansion of freight transportation and logistics infrastructure is reinforcing this requirement. As heavy-duty electric trucks become more prevalent, thermal systems must also accommodate higher battery loads, charging requirements, and power-electronics cooling.

Integrated Thermal Architectures Are Gaining Momentum

Commercial vehicle thermal management is increasingly moving from individual cooling components toward integrated architectures. These systems can coordinate battery conditioning, drivetrain cooling, cabin climate control, and waste-heat recovery through a centralized approach.

In 2025, ZF introduced its TherMaS thermal management system, integrating battery thermal management, drivetrain cooling, cabin climate control, and waste-heat recovery. According to the report, the architecture can improve electric-vehicle range by up to 10% under winter conditions.

Valeo also showcased its smart thermal-management portfolio at IAA MOBILITY 2025, combining smart heat-pump technology, coolant modules, and predictive thermal-control software. These developments demonstrate how software and intelligent controls are increasingly being combined with conventional thermal components.

The shift toward integrated systems can improve energy utilization while reducing the complexity associated with managing separate cooling and heating circuits. This is particularly relevant to electric commercial vehicles, where thermal energy must be carefully managed to preserve driving range.

Battery Thermal Management Creates New Opportunities

Battery thermal management is becoming increasingly important as commercial fleets adopt battery-electric trucks and buses. Battery cells operate most efficiently within specific temperature ranges, while excessive heat can affect performance, durability, and charging behavior.

Thermal systems can regulate battery temperature during operation and charging, helping maintain more consistent performance across different ambient conditions. This is especially relevant for commercial vehicles that undergo frequent charging cycles or operate for extended periods.

The report highlights that global electric truck production reached approximately 440,000 units in 2025, with more than 90% manufactured in China. The increasing production of battery-electric trucks is therefore creating additional requirements for battery cooling modules, pumps, valves, sensors, and electronic controls.

Natural Refrigerants Are Opening New Technology Opportunities

Changes in refrigerant regulations are encouraging manufacturers to explore thermal systems using refrigerants with lower environmental impact. The Kigali Amendment to the Montreal Protocol and evolving regional regulations are increasing pressure to reduce dependence on high-global-warming-potential hydrofluorocarbons.

The United Nations Environment Programme's Kigali Amendment resources outline the global effort to reduce HFC consumption. This regulatory direction is encouraging manufacturers to reconsider refrigerant selection across commercial vehicle HVAC and thermal systems.

Carbon dioxide (R744) and R290 are receiving increasing attention because of their environmental characteristics and thermal performance. The transition creates opportunities for suppliers developing compressors, valves, heat exchangers, and integrated thermal architectures compatible with next-generation refrigerants.

Asia-Pacific Leads Global Development

Asia-Pacific accounted for approximately 45% of the sector in 2026, making it the leading regional contributor. The region benefits from a large commercial vehicle manufacturing base, extensive automotive supply chains, and accelerating electrification.

China remains a major contributor to regional production. According to the report, China's commercial vehicle sales reached approximately 4.30 million units in 2025, while new-energy vehicles represented 47.9% of total vehicle sales.

India is also supporting regional development through initiatives aimed at accelerating electric mobility and strengthening domestic vehicle manufacturing. The combination of large-scale vehicle production, growing freight activity, and increasing electric commercial vehicle adoption is supporting demand for advanced battery, HVAC, power-electronics, and engine thermal systems.

Engine-Off Climate Control Supports Fleet Efficiency

Thermal management is also expanding beyond powertrain cooling into energy-efficient cabin climate control. Commercial vehicles often operate for long periods, and engine idling to maintain cabin temperatures can increase fuel consumption and emissions.

In January 2025, Webasto introduced the Air Top Pro 25 air heater and Cool Split 20 Evo air-conditioning system for commercial vehicle fleets. The engine-off solutions are designed to maintain cabin comfort without requiring the vehicle engine to remain running.

Such technologies can support fleet operators seeking to reduce unnecessary fuel consumption while improving driver comfort during rest periods. They also demonstrate how auxiliary thermal technologies are becoming part of wider fleet-efficiency strategies.

Competitive Development Focuses on Integration

The commercial vehicle thermal-system sector is moderately consolidated, with DENSO Corporation, Valeo SA, MAHLE GmbH, Hanon Systems, and Modine Manufacturing Company collectively accounting for approximately 48% of global revenue.

Competition is increasingly centered on electrification-focused thermal technologies, integrated architectures, heat pumps, battery cooling, intelligent controls, and strategic OEM partnerships. Suppliers are also expanding their portfolios to serve conventional, hybrid, and battery-electric commercial vehicles.

This competitive environment is encouraging companies to develop systems that can manage multiple thermal loads through fewer and more efficient components. Software-enabled predictive controls are also becoming more important as manufacturers seek to optimize thermal performance according to vehicle operating conditions.

Outlook for Commercial Vehicle Thermal Systems

The Commercial Vehicle Thermal System Market is projected to reach USD 27.76 billion by 2032, supported by commercial vehicle production, electrification, stricter emission requirements, expanding freight transportation, and fleet efficiency initiatives.

Engine Thermal Management Systems are expected to remain an important system category because conventional and hybrid vehicles will continue operating alongside electric fleets. At the same time, battery thermal management, power-electronics cooling, heat pumps, and integrated HVAC architectures are likely to gain greater importance as electrification advances.

Future development will increasingly focus on intelligent thermal controls, integrated cooling architectures, battery durability, energy-efficient HVAC systems, and lower-impact refrigerants. As commercial vehicles become more electrified and digitally controlled, thermal management is evolving from a supporting vehicle function into a central technology for improving efficiency, reliability, comfort, and long-term fleet performance.