TCI® Triple-Disc, Bolt-Together Torque Converter for GM 4L80E Applications

The 4L80E Triple-Disc, Bolt-Together Torque Converter is designed for durability, DIY service and stall speed changes. There’s no need to ship it back to TCI®, no welding and no cutting required. Inside is a triple-disc lock-up clutch with the latest generation carbon friction material with significantly higher torque capacity than commonly found in other aftermarket converters – more than 1,000 HP. CNC-billet construction provides increased strength over traditional stamped steel converters, while a furnace-brazed impeller and turbine and tig-brazed turbine fins add to durability. It is also finished in the TCI® HDT Coating™ to prevent corrosion and dissipate heat.

Available in either a 3,000-3,200 RPM or custom stall speed option, the TCI® Triple-Disc, Bolt-Together Torque Converter for GM 4L80E Applications is made specifically for the 4L80E, TCI® 6x Six-Speed™ and TCI® 4x Four-Speed™ electronic transmissions. It not only offers easy servicing, but its increased clutch torque capacity allows for wide-open throttle lock-up in high-horsepower engines.

Quick Facts

Product: TCI® Triple-Disc, Bolt-Together Torque Converter for GM 4L80E Applications

Part Number: 242950 (3,000-3,200 Stall); 242955 (Custom Stall)

Street Price: $1,009.98

Social Media Pitch: The TCI ® Triple-Disc, Bolt-Together Torque Converter for GM 4L80E offers DIY service & WOT lock-up in high-HP engines.

Features & Benefits:

  • Bolt-together design for easy access & service
  • Triple-disc lock-up clutch with latest carbon friction material
  • High torque capacity ideal for WOT lock-up in high-horsepower applications
  • CNC-billet construction and TCI® HDT Coating™ for increased durability

About TCI®

When TCI® opened its doors in 1968, it was a modest operation dedicated to delivering high performance transmission-related parts to a small group of drag racers. From those humble beginnings in Memphis, TN, TCI® has grown to be one of the largest and most technologically advanced manufacturers of high performance aftermarket drivetrain products. Now located in Ashland, MS, some 45 miles from parent company the COMP Performance Group™, TCI® continues to set trends and expand its line of quality transmission, torque converter and accessory parts. For more information about TCI® and its products, visit us online at, or call us at 1.888.776.9824. Also follow us on Facebook at or Twitter at, or visit our YouTube channel at

Media Contact: Trent Goodwin, [email protected], 901.795.2400