Standard Ignition SC439 Automatic Transmission Output Shaft Speed Sensor

Overview of Standard Ignition SC439 Output Shaft Speed Sensor

The Standard Ignition SC439 is a reliable automatic transmission output shaft speed sensor designed for select Ford vehicles. Engineered to provide accurate speed data, this sensor supports smooth transmission operation in Ford E-150, E-250, E-350 Club Wagon, E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty models.

• Connector Gender: Female
• Single rectangular plug-in connector
• Bolt mount installation on transmission
• Three male blade terminals for secure electrical connection
• Compatible with multiple Ford truck and van models

Detailed Product Description

The SC439 output shaft speed sensor from Standard Ignition is designed to monitor the rotational speed of the transmission output shaft. It features a female connector with a rectangular shape and a single plug-in type connection, ensuring a straightforward and secure electrical interface. The sensor mounts directly on the transmission using a bolt mount method, providing stable positioning for accurate speed readings. Equipped with three male blade terminals, this sensor maintains reliable electrical contact under various operating conditions.

This sensor is specifically compatible with Ford E-150, E-250, E-350 Club Wagon, E-350 Super Duty, F-250 Super Duty, and F-350 Super Duty vehicles, making it a suitable replacement part for maintaining proper transmission function in these models. The part number SC439 ensures correct identification and fitment for these applications.

Common Applications and Issues Addressed

• Helps resolve erratic or inaccurate speedometer readings
• Prevents transmission shifting problems related to faulty speed data
• Addresses transmission warning lights triggered by sensor failure
• Improves overall transmission performance and responsiveness
• Supports diagnostic accuracy for transmission control modules

Installation Notes and Tips

• Ensure the vehicle is safely supported before accessing the transmission
• Disconnect the battery to prevent electrical shorts during installation
• Locate the sensor mounting point on the transmission and remove the old sensor carefully
• Install the SC439 sensor using the bolt mount method and connect the female rectangular plug securely
• Verify the three male blade terminals are properly seated to avoid connection issues
• After installation, clear any transmission-related error codes and test drive to confirm proper operation

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring dependable performance and durability. The SC439 output shaft speed sensor undergoes rigorous quality control to maintain consistent functionality. Please refer to Standard Ignition's warranty policy for specific coverage details related to this part.