The Cummins PT fuel pump is a core component of Cummins’ PT (Pressure-Time) fuel system, widely used in older and heavy-duty Cummins diesel engines. “PT” refers to the system’s operating principle: fuel delivery is controlled by fuel pressure and the duration of injection time, rather than by high-pressure injection inside the injector itself.
The PT pump supplies metered, pressurized fuel to the injectors, ensuring accurate fuel delivery under varying engine speeds and loads. This design is known for its mechanical simplicity, durability, and reliability, making it especially suitable for industrial, marine, and power generation applications.
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