A4039970620
Expansion/Cap for OM904 Euro 4/5
Detroit Diesel

This expansion cap is designed for OM904 Euro 4/5 engines, facilitating the safe expansion and venting of the engine’s cooling system. It maintains proper pressure levels, preventing overheating and coolant loss. While specific features are not detailed, such caps typically feature a spring-loaded valve that opens at a predetermined pressure, ensuring consistent system operation. Reliable functioning of this cap is crucial for optimal engine temperature regulation, preventing damage caused by thermal stress. It also helps maintain the integrity of the cooling system by preventing the ingress of contaminants. When sourcing replacement parts, trust Source One Parts Center for high-quality, durable caps that uphold engine safety and efficiency in heavy-duty applications.