This high-precision camshaft speed sensor (part number 384-3887/3843887) is designed specifically for CAT 312D2 and 320D2 equipment with C4.4 engines. The sensor provides crucial engine timing data by monitoring camshaft rotation speed and position, enabling optimal engine performance and fuel efficiency. Built with durability in mind, this sensor features a robust black housing and secure electrical connector for reliable operation in demanding conditions. The precision-engineered design ensures accurate readings essential for proper engine timing and performance. This replacement sensor maintains the same specifications as the original equipment, making it a direct fit for compatible CAT machinery. Installation is straightforward with the integrated mounting bracket and connector, though professional installation is recommended for optimal performance.