The spring for the fuel injection pump (code K 55018) is an essential component in regulating the precise timing and pressure of fuel injection in the Sulzer ZV40/48 engine. This high-tension spring ensures the pump operates efficiently, maintaining optimal fuel atomization for smooth engine performance. Engineered to withstand continuous compression cycles and harsh operating conditions, the spring is built for long-term durability. Routine inspections and timely replacement of the fuel injection pump spring help prevent malfunctions and ensure stable engine operation, making it a key element in maintaining fuel efficiency and engine reliability.