Transmission Controllers

Take command of your vehicle's shift behavior with a dedicated transmission controller. Whether you're swapping a modern electronically controlled transmission into an older chassis, tuning for drag-strip consistency, or dialing in a tow rig, a standalone controller gives you direct access to shift points, line pressure, and torque converter lockup—without relying on a factory ECU.

What to look for when choosing a controller:

  • Standalone vs. piggyback: Some controllers fully replace the stock TCM, while others intercept and modify signals for incremental tuning.
  • Programmability: Look for user-defined shift tables, multiple tuning maps, and real-time adjustment via laptop or handheld tuner.
  • Compatibility: Confirm the controller supports your transmission model (e.g., 4L60E, 4L80E, 6R80, ZF 8HP, Allison, etc.) and your input signals (TPS, MAP, RPM).
  • Data logging and safeties: Onboard diagnostics, limp-mode overrides, and data logging help protect your build during tuning.
  • Hardware: Many kits include the main unit, wiring harness, sensors, and mounting hardware. Check what's included to budget for extras.

Browse our selection of transmission controllers to find the right match for your drivetrain project.

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Haltech NEXUS Ti6L Transmission Interface Kit with wiring harness and specialized connectors for HT-196002.

$450.00

In stock
Haltech NEXUS Ti4L transmission interface module with wiring harness and connectors.

$450.00

In stock
BD Diesel 2 Low UnLoc wiring harness and illuminated rocker switch for Dodge Ram 4WD models.

$200.95

In stock
BD Diesel ProTect68 valve body separator plate with bonded gasket, accumulator plate, and transmission seals.

$197.95

Low in stock
Banks Power TransCommand electronic transmission management module for Ford E4OD and 4R100 gearboxes
$309.00 $343.33
-10%
In stock
Banks Power TransCommand electronic transmission management computer for Ford E4OD and 4R100 automatic transmissions.
$309.00 $343.33
-10%
In stock
ATS Diesel APPS and TPS signal conditioner module for 1998-2002 Dodge Ram 5.9L diesel trucks.

$24.99

In stock
ATS Diesel governor pressure solenoid block conversion kit 303-100-2188 for 1996-2007 Dodge Ram transmissions.

$194.99

In stock
aFe Power ShiftLogic transmission module and plug-and-play wiring harness with OE-style connectors.

$410.00

Low in stock

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