TC Remanufacturing B85JMDZ Automatic Transmission Torque Converter

Automatic Transmission Torque Converter for GM Applications

TC Remanufacturing B85JMDZ is an automatic transmission torque converter built with a 12.500-inch diameter, low stall characteristics, and a captive clutch design. It is identified by converter codes 24246386, JMDZ, and ZF Sachs, and it uses a 36-spline hub with a 6-pad extended mounting pattern.

Compatible with Chevrolet Silverado 2500 HD and Silverado 3500 HD models from 2007-2016, as well as Cadillac CTS models from 2009-2015, this torque converter is specified for direct-fit transmission service where the original unit matches the listed dimensions and codes. Part number B85JMDZ is a practical match for buyers searching for a Chevrolet Silverado 2500 HD torque converter, Chevrolet Silverado 3500 HD torque converter, or Cadillac CTS automatic transmission torque converter.

Key Features

• Part number: B85JMDZ
• 12.500-inch converter diameter
• Low stall torque converter specification
• Captive clutch converter type
• 11.500-inch bolt circle
• 6 pads extended mounting type
• 10mm x 1.5 mounting thread size
• Slots/Step/Flange hub type
• 1.703-inch pilot diameter and 1.150-inch pilot length
• 36-spline hub configuration
• No ring gear
• Converter codes: 24246386, JMDZ, ZF Sachs

Detailed Description

TC Remanufacturing B85JMDZ is an automatic transmission torque converter for GM vehicles that require the listed captive clutch configuration and dimensional specifications. The 12.500-inch diameter, 11.500-inch bolt circle, 36-spline hub, and 6-pad extended mounting layout are important identifiers when matching the replacement to the original transmission setup. For Chevrolet Silverado 2500 HD and Silverado 3500 HD trucks, as well as Cadillac CTS applications, the converter codes and hub dimensions help confirm the correct replacement before installation.

This part cross-references common OE-style identifiers for the same application, including 24246386 and JMDZ. When searching for B85JMDZ, use the vehicle year, transmission code, and converter code together to verify fitment.

What It Helps Address

• Shudder or slip related to a worn torque converter clutch
• Harsh or inconsistent engagement during acceleration
• Transmission performance issues tied to incorrect converter stall characteristics
• Fitment problems caused by mismatched bolt circle, spline count, or pilot dimensions
• Replacement needs after torque converter wear or internal clutch degradation

Installation Notes and Tips

Confirm the original converter code, bolt circle, spline count, pilot diameter, pilot length, and mounting style before installation. Match the transmission and engine application exactly for Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, or Cadillac CTS vehicles listed in the fitment data. Inspect the flexplate, transmission seal area, and related hard parts during service to help ensure proper converter seating and alignment.

Quality Assurance

TC Remanufacturing supplies remanufactured transmission hard parts with application-specific specifications. This torque converter is identified by exact dimensional and code-based details to support accurate replacement selection for the listed GM vehicles.