2025 Thermo King Precedent S-750i

The S-750i has a hybrid-electric architecture with integrated shore power to deliver powerful performance on and off the road. It introduces cost savings, greater uptime, lower emissions, and is evergreen CARB compliant for 50-state operation. 

Proven Emissions Compliant
Utilizing the proven S-Series engine, the S-750i meets current and proposed CARB ULETRU emissions without the use of a DPF. Integrated shore power, embedded telematics with 24 months of service, and R452A refrigerant position this unit well for future regulatory changes.

Proven Innovation
An innovative, connected, and energy-efficient solution
The S-750i leverages many of the proven aspects of the Precedent platform and introduces new features with this new model:

• First use of diesel-electric architecture with integrated shore power.
• First use of 3-speed engine.
• First use of next-generation control system.

Choose with Confidence
The enhanced operational efficiencies and sustainability performance benefits fleets transporting long haul or inner city. The S-750i represents the future of trailer refrigeration by running more efficiently on shore power, making it an ideal investment for ensuring long-term business success.

Benefits of the Precedent S-750i

• Reduced shore power operating costs with integrated electrically driven Thermo King scroll compressor.
• Reduced engine run hours and engine maintenance due to quicker pull down and recovery from null and intelligent use of 3 available engine speeds.
• Confidence to pick up any load at any dock with the industry's deepest frozen unit capacity.
• Integrated and enabled telematics with 24 months of TracKing service* at no charge
• A new controller and HMI designed for ease of use and convenience that features a full-color, high-resolution display and: 
• Our fastest ever boot time. 
• Highly durable casing—fully submersible, dustproof, and resistant to shocks. Comes with a comprehensive IP69K rating .
• Fuel insight—including consumption level and remaining fuel (if optional sensor fitted). 
• Proactive alarms—which display alarm codes and recommended "next best action." 
• Data logging—with over 1-year capacity. 
• Memory storage—including 14 different language options.

Use telematics to increase your profitability
Telematics data is all about helping your fleet be more responsive. Knowing immediately when an issue occurs makes you more effective in how you respond—keeping your deliveries on time and avoiding load loss.

It also helps monitor temperature, offers rapid alarm detection and security alerts when the doors are opened, and detects fuel loss.

With ConnectedSuite™ telematics, you have the information you need at your fingertips. Every S-750i unit comes equipped to deliver the data you need, and does so for the first 24 months of ownership with no service charge.*

Keeping sustainability at the forefront
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.