The URO Parts FD0312931 Diesel Emissions Fluid Heater is engineered to ensure optimal performance of diesel aftertreatment systems by effectively heating Diesel Exhaust Fluid (DEF). This component is crucial for maintaining the efficiency of selective catalytic reduction (SCR) systems, which are integral to reducing nitrogen oxide (NOx) emissions in diesel engines. By providing consistent DEF heating, the FD0312931 helps in achieving compliance with stringent environmental regulations and enhances engine performance. Manufactured with precision, this heater features a black PA66 housing with an inside diameter of 110.5mm, ensuring durability and a secure fit within the system. The inclusion of mounting hardware facilitates straightforward installation, minimizing downtime during maintenance or replacement. Designed to match the function and performance of the original factory DEF heater, the FD0312931 supports the proper operation of the aftertreatment system, contributing to the overall reliability and longevity of diesel-powered vehicles. Utilizing high-quality materials and factory-tested processes, this heater offers a dependable solution for fleet operators seeking to maintain optimal emission control and engine performance.