TC Remanufacturing 581 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter

TC Remanufacturing part 581 is an automatic transmission torque converter built for Chrysler, Dodge, and Plymouth front-wheel-drive applications from the early 1980s through the early 1990s. It is a non-lock-up unit with a 10.250-inch converter diameter, low stall characteristics, and a thick mounting style for the listed vehicle applications.

Key Features

• Part number: 581
• Automatic transmission torque converter
• Non lock up converter type
• 10.250-inch converter diameter
• Low stall setup
• 8.750-inch bolt circle
• 1.335-inch pilot diameter
• 23-spline count
• Flat hub type
• Thick mounting type
• No ring gear
• Converter codes: 143, 161, 340, 370, 761, 963, 974

Detailed Description

This TC Remanufacturing torque converter is specified for a range of Chrysler, Dodge, and Plymouth vehicles, including Dodge Caravan, Plymouth Voyager, Dodge Shadow, Chrysler LeBaron, and Dodge Daytona applications. The part number 581 configuration uses a non-lock-up design with a low stall rating, which is important when matching the converter to the transmission calibration and drivability requirements of the original vehicle setup.

With its 10.250-inch diameter, 23-spline count, flat hub, and thick mounting style, this converter is built around the dimensions and interface points needed for the listed applications. The converter codes 143, 161, 340, 370, 761, 963, and 974 provide additional identification for transmission matching on supported Chrysler, Dodge, and Plymouth models.

Vehicle Fitment

• Fits 1992-1994 Chrysler LeBaron, N/A
• Fits 1983-1990 Chrysler LeBaron, N/A
• Fits 1984-1991 Dodge Caravan, N/A
• Fits 1984-1991 Plymouth Voyager, N/A
• Fits 1989-1990 Dodge Shadow, N/A
• Fits 1987 Dodge Shadow, N/A
• Fits 1985-1989 Dodge Lancer, N/A
• Fits 1985-1989 Plymouth Reliant, N/A
• Fits 1981 Plymouth Reliant, N/A
• Fits 1986-1987 Chrysler New Yorker, N/A
• Fits 1986-1987 Chrysler Town & Country, N/A
• Fits 1986-1987 Dodge 600, N/A
• Fits 1987 Dodge Aries, N/A
• Fits 1984-1987 Dodge Daytona, N/A
• Fits 1986 Chrysler Laser, N/A
• Fits 1983-1986 Dodge Charger, N/A
• Fits 1982-1984 Dodge Rampage, N/A

Common Issues This Part Addresses

• Transmission shudder or poor coupling from a worn torque converter
• Incorrect stall behavior affecting launch feel and drivability
• Fitment problems caused by mismatched spline count, pilot diameter, or mounting style
• Converter noise or vibration related to internal wear
• Transmission service replacement needs on Chrysler, Dodge, and Plymouth front-wheel-drive vehicles

Installation Notes and Tips

Verify the transmission code and converter code before installation, especially on Chrysler LeBaron, Dodge Caravan, and Plymouth Voyager applications. Confirm the 23-spline interface, 1.335-inch pilot diameter, 8.750-inch bolt circle, and thick mounting style against the original unit to ensure proper alignment and engagement. Always inspect the transmission pump, front seal, and related hard parts during replacement to help prevent repeat failure.

Quality Assurance

TC Remanufacturing supplies remanufactured transmission hard parts for drivetrain service work, and part 581 is identified by specific converter codes and dimensional specifications for accurate application matching. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.