HomeStandard Ignition TCS403 Shift Interlock Actuator
Part #: TCS403

Standard Ignition TCS403 Shift Interlock Actuator

⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Lincoln, Crown Victoria and Town Car
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Reliable Shift Interlock Actuator for Ford and Lincoln Vehicles

The Standard Ignition TCS403 Shift Interlock Actuator is designed to provide precise control over your vehicle's transmission shift lock system. Engineered for compatibility with Ford Crown Victoria and Lincoln Town Car models, this actuator ensures proper gear shifting safety and functionality.

  • Connector Gender: Female
  • Single Connector with Square Shape
  • Two Male Blade Terminals
  • Hardware not included

Technical Details and Compatibility

This shift interlock actuator features a female connector with a square shape, designed to interface seamlessly with the vehicle's wiring harness. It includes two male blade terminals, which provide secure electrical connections for reliable operation. The part number TCS403 is specifically manufactured by Standard Ignition to meet the requirements of Ford Crown Victoria and Lincoln Town Car models, ensuring proper fit and function within the transmission system.

Common Applications and Problem Resolution

  • Prevents unintended gear shifting by locking the transmission in park
  • Resolves issues with shift lever not releasing from park
  • Addresses electrical connection failures in the shift interlock system
  • Eliminates intermittent or complete loss of shift interlock actuator function
  • Helps restore proper transmission safety interlock operation

Installation Notes and Tips

When installing the Standard Ignition TCS403 shift interlock actuator, ensure the female square connector aligns correctly with the vehicle harness. Verify the two male blade terminals are fully seated to maintain a secure electrical connection. Since hardware is not included, retain original mounting components or source compatible fasteners. Proper installation is critical to maintain transmission safety and prevent shifting issues.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for durability and performance. The TCS403 shift interlock actuator undergoes rigorous quality control to ensure reliable operation in Ford Crown Victoria and Lincoln Town Car vehicles. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor.

BrandStandard Ignition
Part NumberTCS403
Connector GenderFemale
Connector Quantity1
Connector ShapeSquare
Hardware IncludedNo
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011FordCrown VictoriaN/A
2011LincolnTown CarN/A
2010FordCrown VictoriaN/A
2010LincolnTown CarN/A
2009FordCrown VictoriaN/A
2009LincolnTown CarN/A
2008FordCrown VictoriaN/A
2008LincolnTown CarN/A
2007FordCrown VictoriaN/A
2007LincolnTown Car4.6LV8N/A
2006FordCrown VictoriaN/A
2006LincolnTown Car4.6LV8N/A
2005FordCrown VictoriaN/A
2005LincolnTown Car4.6LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

5W1Z3Z719ATCS326TCS946

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.