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APUs
Fontaine Modification is one of the highest volume Auxiliary Power Unit installers in the U.S. These units provide climate control and power for computers and appliances to a sleeper cab when the truck is parked and the engine is shut off. This reduces tractor engine idling, ultimately lowering fuel and maintenance costs, with reduced emissions. APUs significantly reduce a fleet’s cost of operation, while complying with government regulations. APUs are available in several fuel types.
Auto Start/Stop
Idle Smart is an automatic engine start-stop solution that reduces extended idle time, saves fuel, and prevents downtime by keeping batteries charged and engines warm. By automatically running the engine only when necessary, Idle Smart eliminates the need for jump starts and keeps your drivers comfortable every month of the year.

Solar Panels
The renewable power source maintains a high-capacity lithium-ion battery that can power an all-electric APU unit from 10-12 hours at temperatures from -20°F to 60°F.
Batteries & Capacitors
Capacitors replace the starter battery and work in tandem with the other batteries to deliver reliable power at ignition to ensure your truck will start.
