The Spectra Premium Industries, Inc. EM1108URH~SQ Diesel Exhaust Fluid (DEF) Heater is engineered to prevent DEF from freezing during vehicle operation, ensuring optimal performance in cold conditions. This heater features a precisely calibrated heating element and temperature sensor, maintaining DEF fluidity and preventing crystallization that can lead to system blockages and reduced engine efficiency. Designed for easy installation, it includes an OE-style connector for plug-and-play compatibility, minimizing downtime during maintenance. The heater is constructed with high-quality materials to withstand the corrosive nature of DEF, ensuring extended durability and reliable operation. Rigorous testing by Spectra Premium's in-house engineering team confirms that the EM1108URH~SQ meets or exceeds original equipment specifications for fit, form, and function. By integrating this DEF heater into your fleet, you can enhance vehicle reliability, reduce maintenance costs associated with DEF-related issues, and maintain consistent engine performance across various operating temperatures.