L4400-1205350A

The L4400-1205350A urea pump is a high-precision AdBlue metering and conveying device specially developed for the SCR (Selective Catalytic Reduction) after-treatment system of commercial vehicles. It is mainly adapted to Yatai series diesel engines and the corresponding heavy-duty vehicle models. It is an indispensable core component for vehicles to achieve the compliance of the sixth emission standard. Its core function is to accurately receive the instructions from the engine's electronic control unit (ECU), conduct high-pressure pressurization and precise metering of the urea water solution, and then atomize and spray it into the exhaust pipe. It will undergo an efficient reduction reaction with nitrogen oxides (NOx) in the exhaust gas within the catalytic converter, generating harmless nitrogen and water. This not only ensures the compliance of exhaust gas emissions but also takes into account the power output and fuel economy of the engine.