Mei

MEI Corporation: The Heavy-Duty HVAC Authority Since 1953

MEI Corporation stands as the largest independent after-marketer of heavy-duty air conditioning and heating components in the United States. With a legacy rooted in 1953 — when the company was founded as Matthews Equipment Inc. — MEI has spent more than seven decades refining its expertise in thermal management for the most demanding vehicles on the road and in the field.

The company's focus is squarely on Class 6, 7, and 8 trucks, as well as equipment operating in forestry, mining, and agricultural environments. These aren't conditions that forgive mediocre parts: extreme heat cycles, vibration, and continuous operation push every component to its limits. MEI's engineering philosophy centers on meeting or exceeding OEM specifications so that aftermarket repairs deliver the same reliability as original equipment.

Two Flagship Brands, One Mission

MEI operates through two well-respected product groups — AirSource and Truck Air Parts — together offering what the industry recognizes as the only "True All Makes" air conditioning and heating parts program for heavy-duty vehicles. This means a single supplier relationship can cover the full breadth of a mixed fleet, regardless of make or model. With more than 6,500 SKUs, the catalog is among the most comprehensive available to heavy-duty fleet managers and independent repair shops alike.

The depth of MEI's lineup becomes clear when you look at the range of parts it covers. From the HVAC blower motors that move conditioned air through a truck cab to the A/C receiver driers that filter moisture and contaminants out of refrigerant circuits, MEI supplies the critical components that keep drivers comfortable through long hauls in any climate. Even the smaller pieces of the system — like A/C control switches and multi-purpose relays — are part of MEI's catalog, ensuring technicians can source a complete repair from a single trusted brand rather than mixing suppliers of unknown quality.

Built for the Professionals Who Keep Fleets Moving

MEI's distribution infrastructure backs up its product breadth. Operating from a 100,000-square-foot distribution center near Atlanta, Georgia, MEI maintains a 97% fill rate on weekly stock orders — a critical metric for fleet operators who cannot afford extended downtime. The company also invests in technical training through its TechAir Connect platform, a resource dedicated to current trends and best practices in heavy-duty truck air conditioning service.

Whether you're managing a long-haul trucking fleet, servicing construction equipment, or maintaining agricultural machinery, MEI's combination of OEM-quality components and industry-leading coverage makes it a go-to source. Don't overlook the cabin air filters in MEI's lineup either — a small but essential part of ensuring clean airflow for drivers spending hours behind the wheel.