Standard Ignition TH420 Throttle Position Sensor

Overview of Standard Ignition TH420 Throttle Position Sensor

The Standard Ignition TH420 throttle position sensor is designed for precise throttle monitoring in Dodge Ram trucks. Compatible with Dodge Ram 1500, Ram 2500, and Ram 3500 models, this sensor ensures accurate throttle input data for optimal engine performance.

• Connector Gender: Female
• Connector Quantity: 1
• Connector Type: Plug in
• Terminal Gender: Male
• Terminal Quantity: 6
• Terminal Type: Pin

Detailed Product Description

This throttle position sensor (TPS) from Standard Ignition, part number TH420, features a single female plug-in connector with six male pin terminals. The plug-in connector design allows for straightforward installation and reliable electrical connection. The six-pin terminal configuration supports accurate signal transmission to the vehicle’s engine control unit (ECU), enabling precise throttle position readings. This sensor is engineered specifically for Dodge Ram 1500, Ram 2500, and Ram 3500 trucks, ensuring compatibility and consistent performance within these models.

Common Applications and Problem Resolution

The Standard Ignition TH420 throttle position sensor is used to monitor the position of the throttle valve and relay this information to the engine control system. It helps address issues such as:

• Erratic or unstable engine idle
• Poor throttle response or hesitation during acceleration
• Check engine light triggered by throttle position sensor faults
• Reduced fuel efficiency due to inaccurate throttle data
• Engine stalling or surging at low speeds

Installation Notes and Tips

Installation of the TH420 throttle position sensor requires disconnecting the vehicle battery before removal to prevent electrical shorts. The sensor’s female plug-in connector and six-pin male terminal design allow for a direct replacement without modification. Ensure the connector is fully seated and locked to avoid intermittent connection issues. Calibration or relearning procedures may be necessary after installation, depending on the vehicle’s ECU requirements.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The TH420 throttle position sensor undergoes rigorous testing to ensure durability and reliable performance in Dodge Ram 1500, Ram 2500, and Ram 3500 trucks. Warranty coverage details should be confirmed with the product documentation or authorized distributor.