While the risk cannot be eliminated entirely, several preventive measures can significantly reduce the likelihood of valve seat failure in engines where Cummins QSB6.7 is prone to dropped valve seats.

First, maintaining optimal cooling system performance is critical. Regular inspection of heat exchangers, coolant quality, and water pumps ensures stable operating temperatures and minimizes thermal stress on valve seats.

Second, monitoring engine load and exhaust temperatures helps prevent overheating. Avoiding prolonged operation at maximum rated load can significantly extend valve seat life.

Periodic valve lash inspection is another useful practice. Changes in valve clearance may indicate early valve seat movement, allowing intervention before catastrophic failure.

In some cases, engine rebuilds may include upgraded valve seat materials or improved installation methods to increase retention strength. These upgrades can be particularly beneficial for engines used in high-duty marine or industrial environments.