The equipment has various types of hoses, such as fuel line, urea pipes, coolant pipes, and fuel return pipes. It is now common to connect two pipes using quick couplers to connect the pipes relatively quickly during assembly and maintenance. Here are the main points of the article: 1. The function of urea line/urea pipe 2. The application of SCR quick connector 3. The structure of SCR quick connector 4. How to replace a new SCR quick connector