TC Remanufacturing B21JSFM Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for GM Applications

TC Remanufacturing B21JSFM is a standard replacement automatic transmission torque converter built for GM vehicles using the JSFM or 0001 converter code. It features a 10.750-inch converter diameter, 9.800 bolt circle, lock-up operation, and a 27-spline hub configuration for the listed applications.

Use part number B21JSFM when replacing an OE-style lock-up torque converter on select Buick, Chevrolet, Oldsmobile, and Pontiac models. This unit cross-references OEM replacement number 24207239 for the same application.

Key Features

• Standard replacement automatic transmission torque converter
• Lock-up converter type with lock-up function
• 10.750-inch diameter and 9.800 bolt circle
• 27-spline hub with bushing hub type
• 3-pad mounting design with 10mm x 1.50 mounting thread size
• Fits applications requiring converter codes 12491978, 24207239, 24207329, 24207734, 24208860, 24216224, 24216226, 24230001, Green Dot, or JSFM
• Fitment note: JSFM, 0001 converter code

Detailed Description

TC Remanufacturing B21JSFM is an automatic transmission torque converter for GM front-wheel-drive platforms that call for the JSFM converter code. It is listed for vehicles such as the 2006-2011 Buick Lucerne, 2006-2011 Chevrolet Impala, 2005-2009 Buick LaCrosse, 2006-2008 Chevrolet Malibu, and 1998-2007 Chevrolet Monte Carlo, along with additional Buick, Pontiac, and Oldsmobile applications. For buyers searching for a torque converter for 2006-2011 Buick Lucerne or a replacement torque converter for 2006-2011 Chevrolet Impala, B21JSFM matches the specified code and hardware dimensions.

This part number B21JSFM is also listed for 1998-2005 Buick LeSabre, 1997-2005 Buick Park Avenue, 1998-2005 Pontiac Bonneville, 1997-2003 Buick Regal, and other supported models. Confirm the transmission converter code before ordering to ensure the correct application.

What It Helps Address

• Shudder or slip during torque converter clutch lock-up
• Incorrect converter code replacement during transmission service
• Loss of drivability caused by a worn or damaged torque converter
• Transmission engagement concerns tied to converter wear
• Fitment issues when the OE converter code is JSFM or 0001

Installation Notes and Tips

Verify the transmission code and converter code on the vehicle before installation. Match the 27-spline hub, 3-pad mounting pattern, 10mm x 1.50 thread size, and 0.825-inch pilot diameter to the original unit. Because fitment is code-specific, confirm the application on the vehicle tag or service information before replacing the converter.

Quality Assurance

TC Remanufacturing supplies this torque converter as a standard replacement part for the listed GM applications. The remanufactured construction is intended to meet the dimensional and code requirements of the OE-style application.