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Standard Ignition TCS403 Shift Interlock Actuator
| Brand | Standard Ignition TCS403 |
|---|---|
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Square |
| Hardware Included | No |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Fits | Ford and Lincoln · 14 vehicles |
Direct replacement. Shift interlock actuator with a square connector for straightforward service.
Single-connector design. Uses one female connector with two male blade terminals.
Cross-references 5W1Z3Z719A, TCS326 and TCS946 for the same application. See all 3.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Shift Interlock Actuator for Ford and Lincoln
Standard Ignition TCS403 is a shift interlock actuator for vehicles equipped with an automatic transmission shift-lock system. It is built with a female square connector, male blade terminals, and a single connector layout for direct electrical interface in the vehicle harness.
- Shift interlock actuator for transmission shift-lock operation
- Female connector with square shape for a secure harness connection
- 1 connector, 2 male blade terminals
- No hardware included
- Direct replacement part for Ford Crown Victoria and Lincoln Town Car applications
Fitment Details
- Fits 2005-2011 Ford Crown Victoria, N/A
- Fits 2005-2011 Lincoln Town Car, N/A
Product Overview
Standard Ignition TCS403 is a transmission shift interlock actuator used in the shift-lock system that prevents the gear selector from moving out of Park until the proper release conditions are met. This part cross-references 5W1Z3Z719A and TCS326 for the same application. It is a practical replacement for Ford Crown Victoria and Lincoln Town Car models from 2005 through 2011, and the TCS403 part number is commonly searched by buyers looking for a direct-fit shift interlock actuator.
Common Problems This Part Can Address
- Shifter will not release from Park
- Intermittent or failed shift-lock operation
- Electrical connection issues at the actuator
- Broken or worn actuator components in the transmission interlock system
- Vehicle starts normally but the selector remains locked
Installation Notes and Tips
Verify connector style, terminal layout, and vehicle application before installation. Inspect the shift interlock circuit, related switches, and wiring for damage before replacing the actuator. Because hardware is not included, reuse or source any required mounting components separately if needed. Confirm proper shifter operation after installation and clear any related fault codes if the vehicle is equipped with diagnostic monitoring.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and transmission control components, and TCS403 is built to match the specified connector and terminal configuration for the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Ford | Crown Victoria | — | — | N/A | — |
| 2011 | Lincoln | Town Car | — | — | N/A | — |
| 2010 | Ford | Crown Victoria | — | — | N/A | — |
| 2010 | Lincoln | Town Car | — | — | N/A | — |
| 2009 | Ford | Crown Victoria | — | — | N/A | — |
| 2009 | Lincoln | Town Car | — | — | N/A | — |
| 2008 | Ford | Crown Victoria | — | — | N/A | — |
| 2008 | Lincoln | Town Car | — | — | N/A | — |
| 2007 | Ford | Crown Victoria | — | — | N/A | — |
| 2007 | Lincoln | Town Car | 4.6L | V8 | N/A | — |
| 2006 | Ford | Crown Victoria | — | — | N/A | — |
| 2006 | Lincoln | Town Car | 4.6L | V8 | N/A | — |
| 2005 | Ford | Crown Victoria | — | — | N/A | — |
| 2005 | Lincoln | Town Car | 4.6L | V8 | N/A | — |
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