Wahler is a brand specializing in high-quality components for thermal management and emission control in the automotive sector. The brand is especially known for its thermostats, EGR valves, and engine temperature regulation systems. Founded in 1902, Wahler began as a manufacturer of metal products. From the 1930s onwards, the company became a pioneer in vehicle thermal regulation, laying the foundation for its position as a market leader.

After World War II, Wahler expanded its international presence and supplied components to nearly all major automotive manufacturers. The brand became an expert in thermal management and emission reduction, topics that remain central to product development today. In 2014, Wahler became a subsidiary of BorgWarner Inc., a global leader in propulsion systems and emission technologies. This acquisition provided access to advanced technologies and a worldwide distribution network, while preserving Wahler’s brand identity and technical specialization.

Looking to the future, Wahler focuses on stricter emission standards and the development of efficient EGR systems to reduce nitrogen oxides and CO₂. The brand also works on thermal management systems for hybrid and electric vehicles, offering innovative solutions for batteries and electronic components. Digitalization plays an important role, with smart thermostats and regulation valves using CAN-Bus technology to optimize engine performance. Sustainability is also a major focus, with initiatives aimed at reducing CO₂ emissions in production, using recyclable materials, and remanufacturing.