Airtex 1S12657 4WD Transfer Case Actuator

The Airtex 1S12657 4WD Actuator is an electronically operated transfer case motor assembly designed to control the engagement and disengagement of four-wheel drive modes in electronically shifted 4WD systems. This precision-engineered component translates electrical signals from the vehicle's control system into mechanical movement, allowing drivers to shift seamlessly between 2WD, 4WD High, and 4WD Low modes at the push of a button.

Key Features:

• Direct-fit OE replacement design for reliable transfer case operation
• Electronically operated motor mechanism with position sensing capability
• Restores proper four-wheel drive engagement and disengagement functionality
• Premium copper alloy conductors ensure superior electrical conductivity
• Manufactured to meet or exceed OEM specifications for durability and performance
• Includes integrated encoder sensor to monitor transfer case position

This actuator mounts directly to the transfer case housing and controls the shift fork or collar mechanism that engages the front driveshaft. When a faulty actuator fails, symptoms may include inability to shift into or out of 4WD, flashing dashboard warning lights, or incomplete mode changes. The Airtex 1S12657 provides a quality replacement solution to restore full four-wheel drive system functionality.

OEM Cross-Reference Numbers: 52114387AA, 52114387AB, 52114387AC, 52114387AD, 52114387AE, 52114387AF, 68146585AA, 68399418AA