Details

• Brand:

  

• SKU:

  30919AE871

• Other Names:

  Control Module, Unit AT Control

• Description:

  Auto trans, 2.0L. Forester. With turbo.

  
  

  Trans Controller – Subaru (30919AE871)

  The Trans Controller – Subaru (30919AE871) is a Genuine OEM electronic transmission control unit designed for seamless integration with Subaru CVT and automatic transmissions. Acting as the central processing unit for the transmission, it interprets key sensor data—such as vehicle speed, throttle input, engine RPM, and fluid temperature—to deliver factory-accurate control of shift timing, line pressure, and torque-converter lock-up strategies.

  Housed in a sealed, vibration-resistant enclosure, this OEM controller is built to thrive under extreme engine-bay conditions, including heat, moisture, and mechanical vibration. Rigorously tested to Subaru’s OEM standards, it preserves precise calibration essential for smooth, responsive shifting. Using this authentic unit ensures reliable performance and avoids shift irregularities or drivability issues often encountered with aftermarket alternatives.

  Engineers and mechanics appreciate the plug-and-play, bolt-on design—the controller bolts directly into the OEM bracket and mates with the factory wiring harness. No modifications, coding, or adaptation procedures are required; once connected, the transmission resumes factory-calibrated behavior immediately.

  • Genuine Subaru OEM part – Part Number: 30919AE871

  • Manages shift operations: line pressure, timing, torque-converter control

  • Robust, sealed casing resists heat, moisture, and vibration

  • Direct-fit, plug-and-play installation—no rewiring or programming needed

  • Maintains Subaru’s factory transmission calibration and longevity

  Replacing a faulty unit with the Subaru Trans Controller (30919AE871) restores smooth shift quality, eliminates erratic behavior, and maintains drivetrain reliability. With authentic OEM design and fit, this controller ensures your Subaru continues to perform with the refined and dependable transmission operation that owners expect—mile after mile.

  
  

• Condition: New
• Replaces:

  30919ae870

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