Multi-Temperature Trailer Units

Precedent® multi-temp takes the premier trailer platform in the industry and optimizes it for food distribution.


The Precedent S-610M multi-temp reefer offers CARB Evergreen certification so no DPF will ever be...

Precedent® C-600M

Enjoy the benefits of Precedent in a cost-effective multi-temp package with the C-600M reefer. The...


The Precedent S-610DE is a multi-temp reefer that allows for two separate temperature zones in one...

Multiple Zone Configurations

Choose from numerous configurations within the trailer to best suit your needs.


Photo of trucks at a loading dock with Precedent units.

The Precedent S-Series: The Only Evergreen Choice

Developed to achieve Evergreen CARB and EPA emissions compliance while adding performance, the Precedent S-Series is notable for what it does not have: a Diesel Particulate Filter (DPF). When considering the negative impact on engine life and fuel efficiency that a DPF brings, it was clear that a DPF was not a viable solution for units that run in California. Choose the S-Series and you’ll avoid the unknowns and risks of DPFs and can rest easy knowing that you’re running the only unit available that will be compliant nationwide for as long as you own it.

Photo of a Precedent unit will all service doors open.

An extensive portfolio for cold chain transportation

Our trailer portfolio is the culmination of decades of product innovations designed to help enhance fleet efficiencies. Whether you haul dairy products, fresh produce, frozen meat, or pharmaceuticals, we have the solution for any application.

graph showing tighter temperature control.

Precision Temperature Control

“Close enough” isn’t what your customers are looking for with their temperature-sensitive cargo. Your unit should perform as you program it to, which is just what Precedent units do. No magic, no averaging, just precise temperature control that helps ensure your loads arrive exactly as they should.

Photo of a Precedent unit will all service doors open.

Diesel Direct Electric Architecture

The Precedent platform utilizes our unique DDE (Diesel Direct Electric) architecture to drive optimum efficiencies and double-digit fuel savings across real-world applications. It’s a smarter approach, with the expressed goal of making a lasting difference on your budget. Precedent utilizes DDE architecture to drive optimum efficiencies and double-digit fuel savings and ensures minimal energy loss and maximized fuel efficiency and reliability when compared to other solutions.

Photo of a line of Precedent units mounted on trailers.


Thermo King’s entire line of Precedent refrigeration units offer proprietary eco-pulldown technology that can dramatically reduce fuel consumption. Eco-pulldown technology takes advantage of the efficient design of the Precedent refrigeration system.

Stylized photo of a skyline with graphic digital imagery overlaid across the photo.


Every Precedent trailer refrigeration unit comes Connected from the factory powered by TracKing®, making it easier for fleets to monitor and analyze their refrigerated fleet operations. Fleets can save time and money on installation and choose to enable TracKing remotely, gain access to data, and focus on their business without having to take their assets off the road.

In the News