TC Remanufacturing TO83 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for Lexus and Toyota

TC Remanufacturing TO83 is an automatic transmission torque converter built for select Lexus and Toyota applications with a lock-up design, low stall characteristics, and an 11.800-inch converter diameter. It is specified with a slotted hub, 6-pad mounting type, and 8mm x 1.25 mounting threads for applications that match the listed converter codes and dimensions.

Key Features

• Part number: TO83
• Automatic transmission torque converter
• Lock-up converter type
• Low stall specification
• 11.800-inch converter diameter
• 9.437 bolt circle
• 6-pad mounting type with 8mm x 1.25 threads
• Slotted hub design
• 20-spline count
• 1.257 pilot diameter and 1.400 pilot length
• Converter codes: 53A020, 320

Detailed Description

This TC Remanufacturing torque converter is built for automatic transmissions used in Lexus SC430, GX470, GS430, LS430, RX300, and Toyota 4Runner and Land Cruiser applications. The lock-up design helps maintain efficient driveline coupling at cruising speeds, while the low stall setup supports smooth engagement characteristics for the listed vehicles. TO83 is identified by its converter codes, mounting pattern, spline count, and pilot dimensions, making those measurements important when matching the correct replacement.

Fits 2002-2010 Lexus SC430, N/A. Fits 2003-2009 Lexus GX470, N/A. Fits 2003-2009 Toyota 4Runner, N/A. Fits 2006-2007 Lexus GS430, N/A. Fits 2003-2007 Toyota Land Cruiser, N/A. Fits 2004-2006 Lexus LS430, N/A. Fits 1999-2003 Lexus RX300, N/A.

What It Is Used For

• Replacing a worn or damaged automatic transmission torque converter
• Addressing shudder, slip, or inconsistent lock-up operation
• Restoring proper converter engagement in Lexus SC430 and Toyota 4Runner applications
• Correcting fitment issues when the original converter uses the listed pilot and mounting dimensions
• Matching the specified converter codes for transmission service work

Installation Notes and Tips

Verify the converter codes 53A020 and 320, along with the 9.437 bolt circle, 20-spline count, 1.257 pilot diameter, and 1.400 pilot length before installation. Confirm the transmission and flexplate mounting pattern matches the 6-pad, 8mm x 1.25 configuration. For Lexus GX470 and Toyota Land Cruiser applications, the listed 1.40 pilot length note should be checked carefully during parts verification. This part cross-references Aisin (e.g., 320, 53A020) for the same application.

Quality Assurance

TC Remanufacturing supplies remanufactured transmission hard parts for service replacement use. Final fitment should be confirmed against the vehicle’s transmission specifications and the converter dimensions listed above.