TC Remanufacturing TO61 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for Toyota and Lexus

The TC Remanufacturing TO61 is an automatic transmission torque converter built for select Toyota and Lexus applications with a lock-up design and low stall characteristics. It is a direct-fit transmission hard part for vehicles such as the Toyota Tundra, Toyota 4Runner, Toyota Sequoia, Lexus LS430, and Lexus LX470.

Key Features

• Part number: TO61
• Automatic transmission torque converter
• Lock-up converter type
• Low stall calibration
• 11.850-inch converter diameter
• 9.437-inch bolt circle
• 6-pad mounting design
• 8mm x 1.25 mounting thread size
• 20-spline hub interface
• Slotted hub type
• 1.257-inch pilot diameter and 1.450-inch pilot length
• No ring gear
• Converter codes: 50A040, 50A070, 010, 5007, 5A1, 8F04U, 5A070, 5A100

Detailed Description

TC Remanufacturing TO61 is engineered as a lock-up automatic transmission torque converter for Toyota and Lexus trucks and SUVs that use the listed converter codes and dimensions. The low stall setup supports smooth engagement characteristics for applications including 2000-2004 Toyota Tundra, 2003-2004 Toyota 4Runner, 2001-2004 Toyota Sequoia, 2001-2003 Lexus LS430, 2001-2005 Lexus GS430, 1998-2002 Lexus LX470, 1995-2002 Toyota Land Cruiser, and 1996-1997 Lexus LX450. This part number, TO61, is a fitment-focused replacement for vehicles that require the specified 11.850-inch diameter, 20-spline hub, and 6-pad mounting pattern.

What This Part Helps Address

• Shudder or slip related to a worn lock-up torque converter
• Harsh or inconsistent engagement during acceleration
• Transmission performance issues tied to incorrect converter stall characteristics
• Fitment problems caused by mismatched bolt circle, spline count, or pilot dimensions
• Noise or drivability concerns from a damaged or fatigued converter assembly

Installation Notes and Tips

Verify the converter codes, bolt circle, spline count, pilot diameter, pilot length, and mounting thread size before installation. Confirm transmission application by year, make, and model, especially on Toyota Tundra, Toyota 4Runner, and Lexus LS430 vehicles. Inspect the transmission, flexplate, and related sealing surfaces before installing TO61 to help ensure proper alignment and operation.

Quality Assurance

TC Remanufacturing supplies remanufactured transmission hard parts for service replacement applications. This TO61 torque converter is built around published fitment and dimensional specifications for the listed Toyota and Lexus vehicles.