TC Remanufacturing B24-6770 Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for GM Trucks and SUVs

TC Remanufacturing B24-6770 is a lock-up automatic transmission torque converter built for specific GM and Isuzu applications. It features a 10.600-inch converter diameter, 9.750 bolt circle, 27-spline count, slotted hub, and 3-pad mounting design for the listed vehicles.

Fits 2004-2012 Chevrolet Colorado, N/A. Fits 2004-2012 GMC Canyon, N/A. Fits 2007-2010 Hummer H3, N/A. Fits 2009-2010 Hummer H3T, N/A. Fits 2007-2008 Isuzu i-370, N/A. Fits 2006 Hummer H3, N/A, Fitment Note: 6770 Converter Code. Fits 2006 Isuzu i-350, N/A.

• Part number: B24-6770
• Lock-up torque converter for automatic transmission service
• 10.600-inch converter diameter with 9.750 bolt circle
• 27-spline count with slotted hub type
• 3-pad mounting type for the listed applications
• Pilot diameter: 0.825 inch; pilot length: 1.500 inch
• Stall speed: 1865 RPM
• No ring gear
• Converter codes: 24216770, 24238404, 24238504

Detailed Product Information

This TC Remanufacturing torque converter is specified for Chevrolet Colorado and GMC Canyon models from 2004-2012, along with Hummer H3, H3T, and Isuzu i-370/i-350 applications listed in the fitment data. The B24-6770 uses a lock-up design to support controlled coupling in the transmission, while the 1865 RPM stall specification and OE-style dimensions help match the original drivetrain setup for the covered vehicles. The listed converter codes and physical measurements are important reference points when matching the correct automatic transmission torque converter for these platforms.

This part cross-references OE-style converter codes 24216770 and 24238404 for the same application.

Common Replacement Reasons

• Transmission shudder during lock-up operation
• Slipping or delayed engagement after converter wear
• Vibration or driveline harshness related to converter failure
• Incorrect stall behavior affecting shift quality
• Noise or contamination traced to internal converter damage

Installation Notes and Tips

Verify the converter code, spline count, bolt circle, pilot dimensions, and mounting style before installation. Confirm the transmission and vehicle application against the listed fitment, especially for the 2006 Hummer H3 with converter code 6770. Flush the transmission cooler and lines, inspect the pump and front seal, and check for debris before installing the replacement torque converter.

Quality Assurance

TC Remanufacturing supplies remanufactured transmission hard parts for drivetrain service applications. Use the published dimensions, converter codes, and fitment data to confirm the correct part before installation.