TC Remanufacturing B29DCNF Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for GM Applications

TC Remanufacturing B29DCNF is a lock-up automatic transmission torque converter built for select Chevrolet, GMC, Oldsmobile, and Isuzu applications. It features a 12.000-inch converter diameter, 10.750-inch bolt circle, 30-spline count, and a 2075 RPM stall for the DBNF converter code.

Use this torque converter when servicing a Chevrolet Blazer, Chevrolet S10, GMC Sonoma, or GMC Jimmy with the matching transmission setup. The B29DCNF part number is also listed for Oldsmobile Bravada, Chevrolet Astro, Isuzu Hombre, and related GM platforms that require this configuration.

• Lock-up automatic transmission torque converter
• 12.000-inch converter diameter
• 10.750-inch bolt circle
• 30-spline hub interface
• Slotted hub type with 3-pad mounting
• 1.703-inch pilot diameter
• 2075 RPM stall speed
• DBNF converter code
• No ring gear

Detailed Product Overview

TC Remanufacturing B29DCNF is specified as a lock-up torque converter with a slotted hub, 3-pad mounting, and a 1.703-inch pilot diameter. The 12-inch converter body and 30-spline design are important match points when replacing a worn unit in GM light truck and SUV applications. For buyers searching Chevrolet S10 torque converter, GMC Sonoma torque converter, or Chevrolet Blazer automatic transmission torque converter, this part number provides a direct reference point for the correct DBNF configuration.

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

Common Problems This Part Can Address

• Shudder or slip during lock-up operation
• Delayed engagement after transmission service
• Vibration caused by a worn converter hub or pilot fit
• Incorrect stall characteristics from a mismatched replacement
• Transmission performance issues tied to the wrong converter code

Installation Notes and Tips

Verify the converter code, spline count, bolt circle, pilot diameter, and mounting style before installation. Confirm transmission compatibility against the vehicle application and compare the original unit’s dimensions to B29DCNF before assembly. Proper flushing of the transmission system and inspection of related seals, cooler lines, and fluid condition are recommended during replacement.

Quality Assurance

TC Remanufacturing supplies remanufactured drivetrain components for service replacement use. B29DCNF is cataloged with defined dimensional and application data to support accurate part matching for compatible Chevrolet Blazer, Chevrolet S10, GMC Sonoma, GMC Jimmy, Oldsmobile Bravada, Chevrolet Astro, and Isuzu Hombre applications.