Standard Ignition SIA1 Shift Interlock Actuator

Shift Interlock Actuator for Ford and Lincoln

Restore proper transmission shift release with the Standard Ignition SIA1 shift interlock actuator. This direct-fit replacement is built for vehicles that need a reliable repair for a no-shift or stuck-in-park condition, including many Ford Ranger, Taurus, F-150, and E-Series applications.

Standard Ignition SIA1 is engineered to match OE fit and function, with a rectangular female connector and 3-pin male terminals for straightforward electrical connection. It is a practical replacement for vehicles that use a column-mounted shift interlock system.

Key Features

• Direct-fit shift interlock actuator for OE-style replacement
• Rectangular female connector with 3-pin male terminal layout
• Built to restore transmission shifting function after actuator failure
• Tested to OE specifications for fit, performance, and durability
• Compatible with many Ford, Lincoln, and Mercury vehicles from 1992-2010

Detailed Description

The Standard Ignition SIA1 shift interlock actuator is a replacement component for vehicles that rely on an electronic shift lock system to release the transmission from Park. It is commonly used on Ford Ranger, Ford Taurus, Ford F-150, Ford E-150, Ford E-250, Ford E-350, and related Lincoln and Mercury models. This part number, SIA1, is also cross-referenced with F2DZ3Z719A and ILA1 for the same application.

With OE-style construction and application-specific fitment, this actuator is intended to restore normal shift release operation after the original unit wears out or fails electrically. It supports vehicles such as 1992-2007 Ford Taurus, 1992-2003 Ford F-150, 1994-2002 Ford E-150 Econoline, and 1998-2002 Lincoln Navigator, among many others.

Common Problems This Part Can Address

• Transmission shifter will not release from Park
• Intermittent or failed shift interlock operation
• Electrical actuator failure in the steering column shift lock system
• Sticking or inconsistent shift release on column-mounted applications
• Need for an OE-style replacement during transmission control repair

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle application before installation. This part uses one rectangular female connector with three male pin terminals. Fitment includes column-mounted applications on select Ford Taurus and Mercury Sable models with the headlight dimmer switch located on the steering column, and left-hand-drive Explorer Sport Trac applications.

For best results, confirm the exact year, make, and model against the vehicle’s shift interlock configuration before replacing the original actuator. Standard Ignition SIA1 is a direct-fit replacement for many Ford and Lincoln platforms, including Ford Ranger and Ford F-150 Heritage applications.

Quality Assurance

Standard Ignition states that this actuator is tested to OE specifications and built to restore shifting function with long service life. The TechSmart line is positioned to meet or exceed OE performance standards for technicians and repair professionals.