Sensors and electrical components in Cummins engines monitor and control critical functions. Pressure, temperature, and position sensors provide real-time data. The ECU processes inputs to optimize fuel delivery and timing. Wiring harnesses transmit signals with minimal resistance. Actuators respond precisely to control commands. Connectors are sealed to prevent moisture intrusion. Voltage regulators and alternators maintain electrical stability. Cummins calibrates components for durability and system integration.