TC Remanufacturing BM39 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for BMW and Range Rover

TC Remanufacturing BM39 is an automatic transmission torque converter built for specific BMW and Land Rover applications. It uses a 11.000-inch converter diameter, captive clutch design, and medium stall calibration to match the transmission requirements of listed vehicles.

Key Features

• Part number: BM39
• Automatic transmission torque converter
• 11.000-inch converter diameter
• Captive clutch converter type
• Medium stall
• Slotted hub type
• 4-pad mounting design
• 10mm x 1.5 mounting thread size
• 10.500 bolt circle
• 1.257 pilot diameter
• 27-spline count
• No ring gear
• Converter codes: 157-100, D21, F38, F39, L31

Detailed Description

TC Remanufacturing BM39 is an automatic transmission torque converter for BMW 540i, BMW X5, BMW 740i, BMW 740iL, BMW 840Ci, and Land Rover Range Rover applications listed below. The captive clutch construction, slotted hub, and 27-spline configuration support proper transmission engagement, while the medium stall setup helps match drivability and shift characteristics to the original application. This part number BM39 is specified for 1996-2009 vehicles across the covered BMW and Range Rover platforms.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Part Helps Address

• Transmission shudder during acceleration
• Delayed or inconsistent torque transfer
• Converter lockup concerns tied to worn internal clutch components
• Fitment issues from an incorrect diameter, spline count, or pilot size
• Drivability problems after transmission service or rebuild

Installation Notes and Tips

• Verify converter codes 157-100, D21, F38, F39, or L31 against the original unit before installation.
• Confirm the 10.500 bolt circle, 10mm x 1.5 mounting thread size, and 1.257 pilot diameter match the transmission and flexplate setup.
• Check that the 27-spline hub engagement is correct for the transmission being serviced.
• Inspect the transmission, cooler, and fluid condition before installing a replacement torque converter.
• Use the exact vehicle application listed below to confirm compatibility before assembly.

Compatible With

• Fits 2003-2009 Land Rover Range Rover, N/A
• Fits 1997-2003 BMW 540i, N/A
• Fits 2000-2003 BMW X5, N/A
• Fits 1997-2001 BMW 740i, N/A
• Fits 1997-2001 BMW 740iL, N/A
• Fits 1996-1997 BMW 840Ci, N/A

Quality Assurance

TC Remanufacturing BM39 is identified by specific converter codes and dimensional specifications to support accurate application matching for BMW and Land Rover transmission service.