South America’s long-haul freight market presents unique challenges for heavy-duty trucks: long distances across diverse climate zones, high average loads, and high ambient temperatures in many regions that put enormous pressure on engine cooling systems. As a leading provider of sustainable transport solutions, Volvo Group has launched a tailored radiator upgrade solution for its flagship FH series trucks operating in South America, addressing common cooling performance issues reported by local fleets and improving overall operational efficiency and reliability for long-distance carriers.
The development of this upgraded solution began with in-depth field research across major South American freight corridors, from Brazil’s intercoastal highways to the Andean mountain routes. Volvo’s engineering team found that the original factory radiators often struggled with three key issues in local operating conditions:
To solve these pain points, the upgrade solution focuses on improved dust resistance, higher heat dissipation capacity, and enhanced structural durability.
The core upgrade of the solution lies in the redesigned radiator core structure optimized for South American conditions. Volvo’s engineering team adjusted the fin spacing from the original 3.0mm to 3.8mm, which significantly reduces the trapping of dust and particulate matter, while maintaining overall heat transfer area through optimized thinner aluminum fin design.
The upgraded radiator adopts an advanced brazed aluminum core structure (replacing the traditional mechanical assembly design used in earlier parts), which improves corrosion resistance and structural strength, while reducing overall weight by 12% to support higher payloads. Additionally, the upgraded design adds a reinforced rubber damping layer at the mounting points and upgraded robotic welding for all core connection joints, reducing the risk of cracks and leaks caused by long-term vibration on rough roads.
To make the upgrade accessible for existing FH fleets across the region, Volvo has structured the solution to fit both new production FH trucks and retrofitting for in-service vehicles. All upgraded radiators are fully compatible with existing FH series models dating back to 2012, requiring no modifications to the truck frame or cooling system for installation, allowing fleet operators to upgrade their existing vehicles without major overhauls.
The solution also includes a complementary preventive maintenance guide tailored to South American conditions, recommending regular inspection and cleaning intervals adjusted for different operating environments, from arid dusty regions to humid coastal areas.
Early field trials of the upgraded solution with 50 leading long-haul freight fleets in Brazil and Argentina delivered impressive results over 12 months of operation:
(vs. 62% original)
Fleet operators also reported a small but measurable 1.8% improvement in fuel efficiency, as maintaining optimal engine operating temperature reduces unnecessary fuel consumption. This tailored upgrade solution further strengthens Volvo Group’s commitment to supporting South America’s growing long-haul freight industry, combining global engineering expertise with local market insight to deliver reliable, efficient solutions that meet the real needs of regional transport operators.
Post time: Jun-15-2026