We may be celebrating the 10th anniversary of the Precedent S-Series reefer unit, but we are far from resting. At Thermo King, we are celebrating our history of investing in innovative and sustainable solutions that provide peace of mind and confidence for our customers. 

The S-Series was the first reefer unit in the refrigerated transportation industry to achieve Evergreen CARB and EPA Tier 4 engine compliance. Ten years later, it's still the only proven solution that meets the strictest emission regulations without modifications like a diesel particulate filter (DPF). 

Your trust in us over the last decade for CARB-compliant solutions keeps pushing us to innovate and develop new solutions for you.

Sharing a commitment to sustainability with our customers is what drives us forward. By purchasing an Evergreen CARB compliant unit, customers can rest assured that they are meeting the strictest Particulate Matter, NOx regulations, as well as maximizing their fuel usage. Since the Precedent S-Series reefer unit launched in 2013, customers have avoided more than 6 million metric tons of CO2 emissions. This saves the equivalent emissions of 600 million gallons of diesel fuel.

While transformational products like the Precedent S-Series help you make a positive impact on the environment, we also are committed to broader global climate goals. Through Trane Technologies’ Gigaton Challenge, we are committed to reducing our customer’s greenhouse gas emissions by 1 billion metric tons.

​​​Learn more about our sustainability commitments and how we are helping our customers deploy solutions that reduce emissions.