Genuine Bosch Urea Injection Valve F00BH40420

A Urea Injection Valve is a crucial component in modern diesel vehicles equipped with Selective Catalytic Reduction (SCR) systems. It plays a significant role in reducing harmful nitrogen oxide (NOx) emissions, which are a major contributor to air pollution. The Urea Injection Valve works in tandem with a separate urea tank and a dosing unit.

When the car's engine exhaust gases enter the SCR system, the Urea Injection Valve sprays a precisely measured amount of aqueous urea solution, commonly known as diesel exhaust fluid (DEF), into the exhaust stream. This fluid serves as a reductant, reacting with the harmful NOx gases and converting them into harmless nitrogen, water, and small amounts of carbon dioxide. The Urea Injection Valve ensures that the DEF is accurately distributed and atomized, allowing for optimal reactions with the exhaust gases and maximizing the effectiveness of the SCR system in reducing emissions.