Product Description: High-Performance Front Axle Vacuum Actuator for Enhanced 4WD Efficiency Enhance your vehicle's four-wheel-drive system with our reliable Front Axle Vacuum Actuator, designed for superior performance and efficiency. OE Number: This front axle vacuum actuator references OE number 600‑300. It is precisely molded and designed based on original data to ensure perfect compatibility and function. Fitment: Specifically designed as a replacement for the Expedition (1997‑2002) and the Navigator (1998‑2002). Please verify your vehicle's model and year of manufacture before ordering to ensure a proper fit. Efficiency Improvement: This actuator is crucial for your vehicle's 4WD system, enhancing fuel efficiency by seamlessly engaging and disengaging front wheel drive as required. Its operation contributes to better fuel economy and optimal drive performance. High Performance: Engineered for efficient power management, the shift actuator ensures smooth engagement or disengagement of the front axle. This guarantees optimal vehicle performance under various driving conditions. Ideal Replacement: Designed for direct replacement installation, this actuator meets or exceeds OEM standards, making it an excellent choice for replacing old or damaged components in your original vehicle. Upgrade your vehicle with our Front Axle Vacuum Actuator to ensure efficient 4WD operation and enhanced vehicle performance. Its precise construction and reliable fit make it an essential component for maintaining your vehicle's functionality and efficiency.