Standard Ignition SC669 Vehicle Speed Sensor

Vehicle Speed Sensor for Ram 3500

Standard Ignition SC669 is a vehicle speed sensor built for direct-fit service on 2013-2024 Ram 3500 applications. It uses OE-match connectors and terminals to help ensure proper fit, accurate output signal readings, and consistent performance on the transmission.

Key Features

• OE-match connectors and terminals for correct electrical fit
• OE-match output signal for accurate vehicle speed readings
• Mounts on the transmission with a bolt-mount design
• Female rectangular plug-in connector with male blade terminals
• Built and tested for signal amplitude and polarity consistency
• Precision-manufactured components support stable engine and emissions control inputs

Detailed Description

Standard Ignition SC669 is a transmission-mounted vehicle speed sensor for Ram 3500 trucks from 2013 through 2024. The sensor is engineered with a female rectangular connector, plug-in connection style, and a bolt-mount design for OE-style serviceability. Its output signal is matched to original equipment requirements, helping the powertrain control system receive accurate vehicle speed data. This part cross-references 5S17051 and SN8371 for the same application.

For Ram 3500 owners replacing a failing speed sensor, SC669 provides a direct replacement path that supports consistent signal delivery and dependable operation. The part number SC669 is also commonly searched as a Ram 3500 vehicle speed sensor and as a transmission speed sensor replacement.

What It Helps Solve

• Erratic or inaccurate speedometer readings
• Transmission shift concerns related to vehicle speed input
• Illuminated fault codes tied to speed sensor signal issues
• Intermittent loss of speed signal from a worn sensor
• Driveability problems caused by incorrect speed data

Installation Notes and Tips

Install SC669 on the transmission using the existing bolt-mount location and verify the connector locks fully into place. Inspect the harness, terminals, and sealing surfaces before installation to help prevent repeat electrical faults. After replacement, clear diagnostic trouble codes and confirm speed signal operation during a road test.

Quality Assurance

Standard Ignition subjects this sensor to environmental, endurance, and end-of-line testing to verify signal amplitude and polarity. That testing process helps support consistent performance in Ram 3500 applications and helps ensure the sensor meets OE-style electrical and fitment expectations.