HomeElectrical, Lighting and Body > Control ModulesDorman 609-021 Transmission Control Module
Part #: 609-021

Dorman 609-021 Transmission Control Module

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⚙️ 31 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Mercury, and Lincoln, Explorer, Explorer Sport Trac, Mustang, Mountaineer, LS, Thunderbird, and Aviator
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Reliable Transmission Control Module for Ford, Lincoln, and Mercury Vehicles

The Dorman 609-021 Transmission Control Module is a remanufactured replacement designed to restore proper transmission function in select Ford, Lincoln, and Mercury models. Engineered with a 12-pin connector configuration, this module ensures seamless integration with your vehicle's electrical system.

  • Standard replacement grade for dependable performance
  • 12-pin connector/terminal configuration for precise fit
  • Compact dimensions: 6 inches wide, 4 inches long, and 2 inches high
  • Remanufactured unit included in the package
  • Compatible with multiple Ford, Lincoln, and Mercury models

Product Details and Specifications

This transmission control module (TCM) from Dorman is designed to meet OEM specifications for a range of vehicles including the Ford Explorer, Explorer Sport Trac, Mustang, Lincoln Aviator, LS, Mercury Mountaineer, and Thunderbird. The module measures 6 inches in width, 4 inches in length, and 2 inches in height, making it a compact and efficient component. Its 12-pin connector ensures proper electrical connections, facilitating accurate transmission control and communication with the vehicle’s onboard systems.

Compatible Vehicles and Applications

The Dorman 609-021 TCM is compatible with the following makes and models:

  • Ford Explorer and Explorer Sport Trac
  • Ford Mustang
  • Lincoln Aviator and LS
  • Mercury Mountaineer and Thunderbird

This module is ideal for owners seeking a reliable replacement part to address transmission control issues in these specific vehicles.

Common Issues Addressed by This Transmission Control Module

  • Erratic or delayed shifting
  • Transmission slipping or failure to engage gears
  • Check engine light related to transmission faults
  • Loss of communication between transmission and vehicle computer
  • Intermittent transmission performance problems

Installation Notes and Tips

Installation of the Dorman 609-021 Transmission Control Module requires basic automotive electrical knowledge. Ensure the vehicle’s battery is disconnected before beginning installation to prevent electrical shorts. Verify the 12-pin connector aligns correctly with the vehicle’s wiring harness. After installation, it is recommended to clear any diagnostic trouble codes and perform a transmission relearn procedure if applicable to restore optimal function.

Quality Assurance and Warranty Information

Dorman remanufactured control modules undergo rigorous testing to meet quality and performance standards. The 609-021 Transmission Control Module is backed by a limited warranty, providing assurance of its reliability and durability when installed in compatible Ford, Lincoln, and Mercury vehicles.

BrandDorman
Part Number609-021
Connector/Terminal Configuration12 Pin
Item GradeStandard Replacement
Module Height (in)2 in
Module Length (In)4 in
Module Width (in)6 in
Package Contents1 Remanufactured Transmission Control Module

This part fits 31 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2010FordExplorerN/A
2010FordExplorer Sport TracN/A
2010FordMustangAutomaticN/A
2010MercuryMountaineerN/A
2009FordExplorerN/A
2009FordExplorer Sport TracN/A
2009FordMustangAutomaticN/A
2009MercuryMountaineerN/A
2008FordExplorerN/A
2008FordExplorer Sport TracN/A
2008FordMustangAutomaticN/A
2008MercuryMountaineerN/A
2007FordExplorerN/A
2007FordExplorer Sport TracN/A
2007FordMustangAutomaticN/A
2007MercuryMountaineerN/A
2006FordExplorerN/A
2006FordMustangAutomaticN/A
2006LincolnLSN/A
2006MercuryMountaineerN/A
2005FordExplorerN/A
2005FordMustangAutomaticN/A
2005FordThunderbirdN/A
2005LincolnAviatorN/A
2005LincolnLSN/A
2005MercuryMountaineerN/A
2004FordExplorerN/A
2004FordThunderbirdN/A
2004LincolnAviatorN/A
2004LincolnLSN/A
2004MercuryMountaineerN/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:

4L2Z7G391AATCS113

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