Delphi SS12256 Vehicle Speed Sensor

Vehicle Speed Sensor for Ford and Mercury Applications

Delphi SS12256 is a standard replacement vehicle speed sensor built for accurate speed signal output in select Ford and Mercury vehicles. It is calibrated to OE standards and validated through Delphi’s OE-focused development process to help maintain reliable drivetrain and speedometer performance.

Compatible with 1995-2011 Ford Ranger, 2001-2005 Ford Explorer Sport Trac, 2001-2003 Ford Explorer Sport, 1995-2001 Ford Explorer, 1998-2001 Mercury Mountaineer, and 1995-1997 Ford Aerostar. This part number, SS12256, is a direct-fit option for a wide range of applications that use a 2-terminal, female connector design.

• Standard replacement vehicle speed sensor
• OE-calibrated for accurate readings
• 1 rectangular female connector
• 2 female terminals with pin-style terminal type
• Package includes the ABS wheel speed sensor and instruction sheet
• No wiring harness included

Detailed Product Information

Delphi SS12256 is engineered for vehicles that depend on a precise speed signal for proper instrument cluster and control system operation. The sensor’s OE-standard testing and calibration help support consistent output across the listed Ford Ranger, Explorer, Explorer Sport Trac, Explorer Sport, Aerostar, and Mercury Mountaineer applications. If you are replacing a worn or failed vehicle speed sensor, SS12256 provides a standard replacement solution with the correct connector layout and terminal count for the specified fitments.

This part cross-references Standard Ignition SC445 for the same application.

Common Problems This Part Can Address

• Erratic or inoperative speedometer readings
• Intermittent vehicle speed signal loss
• Transmission shift concerns related to speed input
• Diagnostic trouble codes tied to vehicle speed sensor performance
• Harsh or inconsistent drivability caused by faulty speed data

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle application before installation. SS12256 uses a rectangular female connector with two female terminals and does not include a wiring harness. Compare the original sensor and connector style on your Ford Ranger, Explorer, Explorer Sport Trac, Explorer Sport, Aerostar, or Mercury Mountaineer to confirm proper replacement.

Quality Assurance

Delphi backs this sensor with OE development and product validation methods, and each unit is tested and calibrated to OE standards for accurate signal output.