Truck Auxiliary Braking Device Market Size, Share Demand Report By Product Type (Engine Brakes, Hydraulic Retarders, Electromagnetic Retarders, Exhaust Brakes), By Vehicle Type (Heavy-Duty Trucks, Medium-Duty Trucks, Light Commercial Trucks), By Sales Channel (OEM, Aftermarket) By Region & Segment Forecasts, 2025–2034

Market Trends

Increasing Integration of Electronic Braking Assistance Technologies

One of the major trends shaping the truck auxiliary braking device market is the growing integration of electronic braking assistance technologies into heavy commercial vehicles. Truck manufacturers are increasingly combining auxiliary braking systems with electronic stability control, adaptive cruise control, and advanced driver assistance systems to improve overall vehicle safety and braking performance. Modern braking systems are designed to communicate with onboard vehicle control units, enabling real-time braking optimization under varying road and load conditions.

Electronic integration improves braking responsiveness and helps fleet operators reduce accident risks associated with downhill driving and overloaded transportation. Manufacturers are also developing intelligent retarders and engine braking systems capable of automatically adjusting braking force based on vehicle speed and terrain conditions. These technologies improve vehicle stability and reduce driver fatigue during long-distance transportation operations.

The trend is particularly strong in North America and Europe, where commercial fleet operators are adopting digitally connected vehicle platforms to improve operational efficiency and regulatory compliance. Intelligent braking systems are helping transportation companies reduce maintenance costs by minimizing wear on service brakes and reducing overheating incidents. In addition, advancements in vehicle telematics are allowing fleet managers to monitor braking performance remotely and schedule preventive maintenance more effectively.

Commercial vehicle OEMs are investing heavily in research and development activities focused on electronically controlled braking technologies. Demand for safer and more efficient transportation systems is expected to encourage continuous innovation in integrated auxiliary braking solutions during the forecast period.

Growing Demand for Heavy-Duty Transportation Safety Solutions

Another significant trend influencing the truck auxiliary braking device market is the increasing focus on heavy-duty transportation safety solutions. Logistics companies, mining operators, and industrial transportation providers are prioritizing advanced braking systems capable of improving vehicle control and reducing accident risks in demanding operational environments. Heavy-duty trucks frequently operate under high-load conditions and long-distance routes, increasing the need for reliable auxiliary braking support.

Fleet operators are increasingly adopting retarders and engine braking technologies to improve downhill driving safety and reduce stress on conventional brake systems. Auxiliary braking devices help maintain stable vehicle speed while minimizing brake overheating during extended braking operations. These systems are becoming essential in regions with mountainous transportation routes and large freight movement networks.

Government agencies are also implementing stricter commercial vehicle safety regulations related to braking efficiency and road accident reduction. Regulatory compliance requirements are encouraging fleet modernization and increasing demand for advanced braking assistance technologies. Insurance providers are additionally promoting adoption of auxiliary braking systems by offering operational safety incentives for commercial fleets equipped with advanced braking solutions.

Commercial transportation companies are focusing on reducing operational downtime and maintenance costs through preventive vehicle safety investments. Auxiliary braking devices contribute to improved brake lifespan and lower repair frequency, making them attractive for fleet operators seeking long-term cost optimization. These factors are expected to support continued demand growth across the global commercial transportation industry.

Market Drivers

Expansion of Commercial Transportation and Freight Logistics

The rapid expansion of commercial transportation and freight logistics activities is one of the primary drivers supporting growth in the truck auxiliary braking device market. Increasing industrialization, urbanization, and e-commerce activities are driving higher freight movement volumes across regional and international transportation networks. Heavy-duty trucks are playing a critical role in supply chain operations, creating strong demand for reliable braking systems capable of supporting continuous vehicle utilization.

Long-haul transportation vehicles frequently operate under high-speed and heavy-load conditions that place significant stress on primary braking systems. Auxiliary braking devices help reduce wear on service brakes while improving braking stability and driver safety. Fleet operators are increasingly investing in advanced braking technologies to improve vehicle performance and minimize maintenance-related downtime.

Governments are also investing heavily in transportation infrastructure projects including highways, industrial corridors, and logistics hubs. These developments are increasing commercial vehicle deployment in construction, mining, and freight transportation industries. Demand for auxiliary braking devices is therefore rising among fleet operators seeking enhanced braking efficiency and improved vehicle durability.

The growth of cross-border trade and industrial distribution networks is further strengthening demand for advanced truck safety systems. Commercial transportation companies are prioritizing operational efficiency and regulatory compliance, encouraging adoption of braking technologies capable of improving fleet safety performance and reducing accident-related operational disruptions.

Increasing Road Safety Regulations for Heavy Commercial Vehicles

The implementation of stricter road safety regulations for heavy commercial vehicles is another major factor driving the truck auxiliary braking device market. Governments and transportation authorities worldwide are emphasizing reduction of commercial vehicle accidents caused by brake failure, excessive speed, and overloaded transportation operations. Auxiliary braking systems are increasingly being recognized as important technologies for improving truck safety and controlling heavy vehicles during difficult driving conditions.

Regulatory agencies in North America and Europe are introducing safety standards requiring enhanced braking efficiency in commercial fleets. Fleet operators are therefore upgrading existing vehicles and purchasing new trucks equipped with advanced engine braking systems and retarders. These systems help reduce stopping distances, improve downhill control, and enhance driver confidence during high-load transportation operations.

Commercial vehicle manufacturers are integrating intelligent braking assistance technologies into modern trucks to comply with evolving safety regulations. Advanced braking systems are being designed to operate in coordination with electronic stability control and collision mitigation technologies, creating additional opportunities for auxiliary braking device manufacturers.

Insurance companies and fleet management organizations are also encouraging adoption of braking safety technologies to reduce accident risks and operational liabilities. Improved vehicle safety performance contributes to lower insurance costs and stronger fleet reliability, making auxiliary braking devices an increasingly important investment for transportation companies operating heavy-duty commercial vehicles.

Market Restraints

High Installation Costs and Complex Integration Requirements

One of the major restraints affecting the truck auxiliary braking device market is the high installation cost and technical complexity associated with advanced braking systems. Auxiliary braking devices such as hydraulic retarders and electronically controlled braking technologies often require significant investment in vehicle integration, electronic control systems, and specialized maintenance infrastructure. Small and medium-sized fleet operators may face financial challenges when adopting premium braking technologies across large commercial vehicle fleets.

The installation process for advanced braking systems can also be technically demanding because these devices must integrate effectively with existing engine systems, transmission components, and electronic control units. Improper integration may affect braking performance and increase maintenance requirements. Fleet operators frequently require trained technicians and specialized diagnostic equipment to maintain sophisticated braking systems, adding to overall operational costs.

In developing regions, several transportation companies continue to prioritize low-cost vehicle solutions over advanced braking technologies due to budget limitations. Older truck fleets operating in emerging economies may lack compatibility with electronically controlled auxiliary braking systems, limiting retrofit opportunities. As a result, adoption rates for premium braking technologies may remain slower in price-sensitive markets.

Another challenge is the increasing shift toward electric commercial vehicles. Some conventional auxiliary braking technologies designed for diesel-powered trucks may require redesign or replacement in electric truck platforms. Manufacturers specializing in traditional braking systems are therefore facing pressure to invest in next-generation braking solutions compatible with evolving commercial vehicle architectures.

Market Opportunities

Rising Adoption of Electric and Hybrid Commercial Trucks

The increasing adoption of electric and hybrid commercial trucks presents a significant opportunity for the truck auxiliary braking device market. Commercial transportation companies are gradually transitioning toward cleaner mobility solutions to comply with emission regulations and reduce fuel costs. Electric and hybrid trucks require advanced braking technologies capable of supporting regenerative braking systems while maintaining safety and operational efficiency under heavy-load conditions.

Manufacturers are developing next-generation auxiliary braking devices designed specifically for electric and hybrid commercial vehicle platforms. These systems help improve energy recovery efficiency and reduce wear on conventional braking components. Regenerative braking technologies integrated with auxiliary braking systems are becoming increasingly important for optimizing vehicle performance and extending driving range in electric trucks.

Governments across North America, Europe, and Asia Pacific are supporting adoption of low-emission commercial vehicles through subsidies, infrastructure investments, and sustainability regulations. Fleet operators are therefore increasing investments in hybrid and electric transportation fleets equipped with advanced braking assistance systems. This transition is expected to create strong demand for technologically advanced braking solutions capable of supporting evolving commercial vehicle architectures.

Commercial truck manufacturers are also emphasizing intelligent energy management and enhanced driver safety in electric vehicle platforms. Auxiliary braking systems contribute to improved vehicle control, especially during downhill driving and heavy cargo transportation. Companies capable of developing braking technologies compatible with electric mobility trends are expected to benefit from substantial long-term growth opportunities.

Expansion of Mining and Construction Transportation Activities

The growth of mining, construction, and industrial transportation activities is creating additional opportunities for the truck auxiliary braking device market. Heavy-duty trucks operating in mining and infrastructure development projects require advanced braking systems capable of functioning under extreme load and environmental conditions. Auxiliary braking devices help improve vehicle control and reduce brake wear in rugged operating environments where heavy loads and steep terrain are common.

Construction and mining vehicles frequently transport materials across long downhill routes that place significant stress on conventional braking systems. Engine brakes and retarders are therefore becoming essential technologies for maintaining operational safety and preventing brake overheating. Fleet operators in industrial sectors are increasingly investing in durable braking systems to improve equipment reliability and reduce maintenance frequency.

Governments worldwide are increasing investments in infrastructure modernization, industrial expansion, and energy projects, creating strong demand for construction transportation fleets. Emerging economies in Asia Pacific, Latin America, and the Middle East are witnessing rapid growth in mining and industrial activities, further supporting adoption of advanced heavy-vehicle braking technologies.

Manufacturers are introducing reinforced braking systems with enhanced thermal resistance and intelligent control capabilities to address the demanding requirements of industrial transportation applications. As industrial transportation activities continue to expand globally, auxiliary braking device suppliers are expected to benefit from sustained demand growth across heavy-duty vehicle segments.

By Product Type

Engine brakes dominated the truck auxiliary braking device market in 2024 and accounted for approximately 42.14% of the global market share. These braking systems are commonly installed in heavy-duty commercial vehicles because they provide additional braking force without creating excessive pressure on service brakes. Engine brakes are highly effective in long-haul transportation operations where trucks travel across mountainous terrain and steep downhill routes. Fleet operators prefer engine braking systems because they improve vehicle control, reduce brake overheating, and extend the operational lifespan of brake components. The logistics and freight transportation industries are increasingly investing in trucks equipped with advanced engine braking systems to improve safety performance and reduce maintenance costs. Manufacturers are integrating electronically controlled engine braking technologies into modern truck platforms to improve braking precision and driving stability. Demand for engine brakes is also increasing in construction and mining transportation applications where trucks frequently carry heavy cargo loads under difficult operating conditions. In addition, stricter commercial vehicle safety regulations are encouraging wider adoption of advanced braking assistance systems in heavy commercial fleets worldwide.

Hydraulic retarders are projected to be the fastest-growing subsegment in the truck auxiliary braking device market and are expected to expand at a CAGR of 6.8% during the forecast period. Hydraulic retarders provide smooth and continuous braking assistance, making them suitable for high-load transportation and demanding industrial operations. These systems help reduce wear on conventional braking systems and improve vehicle stability during long-distance transportation. Commercial fleet operators are increasingly adopting hydraulic retarders because they improve operational safety and minimize maintenance-related downtime. Manufacturers are developing electronically controlled retarder systems capable of automatically adjusting braking force according to vehicle speed and load conditions. The expansion of mining, industrial logistics, and infrastructure development projects is creating strong demand for advanced braking technologies capable of operating under extreme environmental and thermal conditions. Hydraulic retarders are also gaining popularity among long-haul freight transportation companies because they improve braking reliability during downhill operations. In addition, increasing investments in intelligent truck safety technologies and connected vehicle systems are expected to support long-term growth for the hydraulic retarder segment across global transportation markets.

By Vehicle Type

Heavy-duty trucks held the dominant share of the truck auxiliary braking device market in 2024 and represented approximately 54.63% of total market revenue. These vehicles are widely used in freight transportation, mining, industrial logistics, and construction activities where efficient braking support systems are essential for operational safety. Heavy-duty trucks often transport large cargo loads over long distances and operate under demanding terrain conditions, increasing dependence on advanced auxiliary braking technologies. Fleet operators are increasingly investing in engine brakes, retarders, and exhaust braking systems to improve vehicle control and reduce brake component wear. The rapid growth of global trade and expansion of logistics infrastructure are significantly increasing heavy truck deployment across highways and industrial corridors. Truck manufacturers are integrating intelligent braking technologies into modern heavy-duty vehicles to improve braking efficiency and support compliance with transportation safety regulations. Auxiliary braking devices help reduce accident risks associated with brake overheating and heavy-load downhill driving operations. In addition, growing demand for fuel-efficient and low-maintenance transportation solutions is encouraging adoption of advanced braking technologies in heavy-duty truck fleets worldwide.

Medium-duty trucks are expected to be the fastest-growing subsegment in the truck auxiliary braking device market and are projected to register a CAGR of 6.6% during the forecast period. Increasing urban freight transportation, regional logistics operations, and e-commerce delivery services are driving growth in medium-duty commercial vehicle deployment. These vehicles frequently operate in congested urban environments and regional transportation networks where efficient braking performance is important for safe vehicle operation. Fleet operators are increasingly equipping medium-duty trucks with advanced auxiliary braking devices to improve braking response and minimize stress on service brakes during stop-and-go driving conditions. Government regulations related to commercial vehicle safety and accident prevention are also supporting adoption of braking assistance technologies in medium commercial vehicles. Manufacturers are introducing compact and electronically controlled braking systems optimized for medium-duty truck platforms. The growth of retail distribution networks, refrigerated transportation services, and industrial delivery operations is further contributing to segment expansion. In addition, rising awareness regarding preventive maintenance and operational safety is encouraging transportation companies to invest in advanced braking technologies for medium-duty truck fleets across developed and emerging economies.

By Sales Channel

The OEM segment dominated the truck auxiliary braking device market in 2024 and accounted for approximately 62.48% of the total market share. Commercial vehicle manufacturers prefer sourcing auxiliary braking systems directly from certified suppliers to ensure product compatibility, operational reliability, and compliance with commercial vehicle safety standards. OEM-installed braking systems are specifically engineered for truck platforms, allowing efficient integration with electronic control systems, powertrain technologies, and advanced driver assistance systems. The increasing production of heavy-duty and medium-duty commercial vehicles globally is supporting strong demand for OEM braking technologies. Truck manufacturers are focusing on integrating advanced braking systems into new vehicle models to improve safety performance and reduce maintenance requirements for fleet operators. Intelligent braking technologies capable of coordinating with vehicle stability systems and adaptive cruise control are becoming increasingly common in modern commercial trucks. Fleet operators also prefer factory-installed braking systems because they provide standardized performance, warranty support, and easier maintenance management. In addition, growing investments in connected commercial vehicle technologies are encouraging OEMs to develop advanced electronically controlled auxiliary braking systems for next-generation transportation platforms.

The aftermarket segment is projected to witness the fastest growth in the truck auxiliary braking device market and is expected to expand at a CAGR of 6.4% during the forecast period. Rising maintenance requirements and increasing demand for braking system upgrades in aging truck fleets are major factors supporting aftermarket growth. Commercial transportation companies frequently replace or upgrade auxiliary braking systems to improve operational safety, reduce maintenance costs, and maintain regulatory compliance. Independent repair facilities and commercial vehicle service centers are increasingly offering advanced braking technology upgrades for heavy and medium-duty trucks. The expansion of digital automotive parts distribution platforms is also improving accessibility to aftermarket braking components for fleet operators and vehicle owners. Manufacturers are introducing modular braking technologies designed for easier installation and compatibility with older truck platforms. Demand for aftermarket auxiliary braking devices is particularly strong in developing economies where aging commercial vehicle fleets remain widely operational. In addition, transportation companies are focusing on preventive maintenance strategies to minimize vehicle downtime and improve long-term operational efficiency. These factors are expected to create strong growth opportunities for aftermarket braking system manufacturers and distributors worldwide.

Regional Analysis

North America

North America accounted for approximately 36.28% of the global truck auxiliary braking device market share in 2025, making it the leading regional market. The region is projected to expand at a CAGR of 5.8% during the forecast period due to strong commercial transportation activity, a mature logistics sector, and increasing adoption of advanced truck safety technologies. The United States and Canada continue to witness high deployment of heavy-duty trucks across freight transportation, construction, and industrial sectors. Fleet operators are prioritizing auxiliary braking systems to improve vehicle safety and reduce maintenance costs associated with service brake wear.

The region’s large highway transportation network and growing long-haul freight operations are significantly supporting market demand. Auxiliary braking devices are widely used in heavy commercial vehicles operating across mountainous routes and long-distance transportation corridors. Regulatory authorities in North America are also emphasizing commercial vehicle safety standards and encouraging adoption of braking technologies capable of reducing accident risks. Fleet modernization initiatives and rising demand for fuel-efficient transportation systems are further contributing to regional market growth.

The United States dominates the North American truck auxiliary braking device market due to its extensive freight transportation industry and large commercial truck fleet. One unique growth factor supporting the U.S. market is the rapid expansion of e-commerce distribution and logistics infrastructure. Rising demand for fast and efficient goods transportation has increased deployment of long-haul trucks requiring reliable braking support systems.

Commercial fleet operators in the United States are increasingly adopting electronically controlled braking technologies integrated with telematics and driver assistance systems. Manufacturers are investing in advanced engine brakes and hydraulic retarders designed to improve braking performance under heavy-load conditions. In addition, strong regulatory focus on transportation safety and accident prevention is encouraging continued adoption of advanced auxiliary braking technologies across the country.

Europe

Europe represented approximately 27.14% of the global truck auxiliary braking device market in 2025 and is expected to grow at a CAGR of 5.9% during the forecast period. The region benefits from a strong commercial vehicle manufacturing industry, extensive freight transportation networks, and strict vehicle safety regulations. European transportation companies are increasingly focusing on advanced braking technologies to improve operational efficiency and comply with evolving road safety standards.

Heavy commercial vehicles operating across Europe frequently transport goods through mountainous and high-traffic transportation corridors, increasing the need for reliable auxiliary braking systems. Engine brakes and retarders are widely adopted to improve downhill vehicle control and reduce brake wear. The region is also witnessing increasing adoption of digitally connected commercial vehicles equipped with intelligent braking assistance technologies integrated with fleet management systems.

Germany dominates the European truck auxiliary braking device market because of its advanced commercial vehicle manufacturing capabilities and strong logistics sector. One unique growth factor supporting the German market is the country’s emphasis on industrial transportation efficiency and engineering innovation. German truck manufacturers are integrating advanced braking technologies into heavy-duty vehicles to improve safety performance and vehicle reliability.

Commercial vehicle suppliers in Germany are investing in precision-engineered braking systems capable of supporting electronically controlled safety functions. The increasing adoption of hybrid and electric trucks is also encouraging development of advanced regenerative braking technologies. Furthermore, Europe’s strong focus on reducing transportation-related accidents and improving environmental efficiency is expected to support long-term demand for intelligent auxiliary braking systems.

Asia Pacific

Asia Pacific held approximately 24.82% of the global truck auxiliary braking device market share in 2025 and is anticipated to record the fastest CAGR of 7.1% during the forecast period. Rapid industrialization, infrastructure development, and growth in freight transportation activities are major factors driving market expansion across the region. China, India, Japan, and South Korea continue to increase commercial vehicle production and deployment to support industrial and logistics operations.

The growth of e-commerce, manufacturing, and construction industries is significantly increasing heavy truck utilization across Asia Pacific. Fleet operators are investing in advanced braking technologies to improve operational safety and reduce maintenance costs associated with continuous heavy-load transportation. Governments are also introducing stricter vehicle safety standards, encouraging adoption of auxiliary braking systems in both new and existing truck fleets.

China dominates the Asia Pacific truck auxiliary braking device market due to its large commercial vehicle production capacity and expanding logistics infrastructure. One unique growth factor supporting the Chinese market is the rapid growth of mining and industrial transportation activities. Heavy-duty trucks operating in industrial regions require reliable braking technologies capable of handling difficult terrain and high cargo loads.

Chinese commercial vehicle manufacturers are increasingly integrating intelligent braking systems into heavy trucks to improve road safety and operational performance. Investments in highway expansion and industrial transportation networks are further supporting demand for advanced braking technologies. Additionally, rising adoption of electric and hybrid commercial trucks is encouraging development of next-generation auxiliary braking devices optimized for sustainable transportation platforms.

Middle East & Africa

The Middle East & Africa region accounted for approximately 6.21% of the global truck auxiliary braking device market in 2025 and is projected to expand at a CAGR of 5.1% during the forecast period. The market is benefiting from increasing infrastructure investments, growth in industrial transportation activities, and rising deployment of heavy commercial vehicles in mining and construction sectors. Countries across the Gulf Cooperation Council are investing heavily in logistics networks and industrial development projects, increasing demand for reliable truck safety technologies.

Harsh environmental conditions and long transportation routes across several countries in the region create strong demand for durable braking systems capable of operating under high thermal stress conditions. Fleet operators are prioritizing auxiliary braking technologies that improve vehicle control and reduce service brake wear in demanding operating environments. The aftermarket segment also contributes significantly to regional demand because several transportation companies maintain large fleets of aging heavy-duty vehicles.

Saudi Arabia dominates the Middle East & Africa truck auxiliary braking device market due to its large industrial transportation sector and ongoing infrastructure development initiatives. One unique growth factor supporting the Saudi Arabian market is the rapid expansion of construction and mining transportation activities associated with industrial diversification projects.

Commercial transportation companies in Saudi Arabia are increasing investments in advanced truck safety systems to improve operational reliability and reduce accident risks. Demand for heavy-duty retarders and engine braking technologies is rising among fleet operators managing industrial cargo transportation across long-distance routes. Additionally, government investments in logistics modernization and industrial expansion are expected to create sustained opportunities for braking technology manufacturers in the region.

Latin America

Latin America captured approximately 5.55% of the global truck auxiliary braking device market share in 2025 and is expected to grow at a CAGR of 5.3% during the forecast period. The regional market is supported by expanding freight transportation activities, increasing infrastructure projects, and rising demand for heavy commercial vehicles. Brazil, Mexico, and Argentina remain important transportation and logistics hubs supporting industrial and agricultural trade activities across the region.

The aftermarket segment plays an important role in regional market development because several commercial transportation fleets operate aging heavy-duty trucks requiring braking system upgrades and maintenance. Auxiliary braking devices are increasingly adopted to improve vehicle safety and reduce maintenance frequency during long-distance freight transportation. Poor road conditions and mountainous transportation routes in several parts of Latin America also contribute to demand for enhanced braking technologies.

Brazil dominates the Latin American truck auxiliary braking device market due to its large agricultural transportation industry and extensive heavy truck fleet. One unique growth factor supporting the Brazilian market is the rapid growth of agricultural export logistics. Transportation of agricultural commodities across long distances requires reliable braking systems capable of improving vehicle control and reducing brake overheating risks.

Brazilian fleet operators are increasingly investing in advanced braking technologies to improve transportation safety and reduce operational downtime. Manufacturers are focusing on localized production and aftermarket distribution strategies to strengthen regional market presence. Furthermore, increasing investments in transportation infrastructure and industrial logistics are expected to support continued demand growth for truck auxiliary braking devices across Latin America.

North America	Europe	APAC	Middle East and Africa	LATAM
U.S. Canada	U.K. Germany France Spain Italy Russia Nordic Benelux Rest of Europe	China South Korea Japan India Australia Singapore Taiwan South East Asia Rest of Asia-Pacific	UAE Turky Saudi Arabia South Africa Egypt Nigeria Rest of MEA	Brazil Mexico Argentina Chile Colombia Rest of LATAM

Competitive Landscape

The truck auxiliary braking device market is characterized by the presence of established commercial vehicle component manufacturers and specialized braking technology providers competing on the basis of product durability, braking efficiency, technological innovation, and integration capabilities. Market participants are increasingly focusing on the development of electronically controlled braking systems, intelligent retarders, and advanced engine braking technologies to improve vehicle safety and operational efficiency. The growing adoption of connected commercial vehicles and advanced driver assistance systems is encouraging manufacturers to introduce braking solutions capable of integrating with onboard vehicle electronics and fleet management platforms. Companies are also investing in research and development activities to improve braking performance under heavy-load conditions while reducing maintenance requirements and operational costs for fleet operators. 

Key Players List

1. ZF Friedrichshafen AG
2. Cummins Inc.
3. Jacobs Vehicle Systems
4. Knorr-Bremse AG
5. WABCO Holdings Inc.
6. Voith GmbH & Co. KGaA
7. Telma S.A.
8. Eaton Corporation
9. BorgWarner Inc.
10. Scania AB
11. Daimler Truck AG
12. MAN Truck & Bus SE
13. Volvo Group
14. Mitsubishi Fuso Truck and Bus Corporation
15. Haldex AB