Caterpillar 375-6988 Fuel Rail Pressure Sensor

The Caterpillar 375-6988 fuel rail pressure sensor monitors high-pressure fuel delivery in common rail injection systems. It provides real-time pressure feedback to the engine control module (ECM) for precise fuel metering and emission control. Designed for Caterpillar C7.1 and C4.4 industrial diesel engines, this sensor integrates a 3-pin electrical connector supporting both digital communication protocols and 0.5-4.5V analog voltage signal output. The plug-and-play design ensures direct installation without specialized tooling. It serves as a critical component for maintaining engine performance across excavator, wheel loader, track-type tractor, and skidder platforms.