How much pressure does a Cummins PT fuel pump supply to the injectors?

The Cummins PT fuel pump is designed to provide a fuel supply pressure that is essential for proper injector operation in diesel engines. The correct pressure output from this pump is approximately 250 psi. This level of pressure ensures that fuel is adequately atomized and delivered to the injectors, allowing for efficient combustion and engine performance.

Maintaining this specific pressure is crucial for ensuring that the fuel spray pattern and volume meet the engine's requirements under various operational conditions. Variations in this pressure can lead to inadequate fuel delivery, affecting engine efficiency and performance. Therefore, understanding that the Cummins PT fuel pump operates at around 250 psi helps technicians diagnose fuel system issues and maintain optimal engine operation.