Caterpillar 379-9413 Actuator Assembly

The Caterpillar 379-9413 actuator assembly is a 24V DC electro-hydraulic component designed for installation on Caterpillar 966M wheel loaders powered by the C9.3 engine. It functions as a critical interface within the hydraulic control system, converting electrical signals from the machine ECM into precise mechanical displacement to modulate hydraulic valve spools. Constructed with a robust sealed housing to withstand harsh under-hood environments including vibration, temperature extremes, and contamination exposure. The unit features integrated mounting flanges for direct bolt-on replacement and a weatherproof electrical connector compliant with Caterpillar interface standards. Internal components include a high-torque motor, gear reduction set, and position feedback sensor for closed-loop control accuracy. This part supersedes earlier reference 508-8884 and is interchangeable with aftermarket designation CA3799413. Verified application is limited to the 966M wheel loader platform with C9.3 engine configuration; fitment must be confirmed against machine serial number prefix prior to installation.