Cardone 73-42102 Transfer Case Control Module

Transfer Case Control Module for NP8 Applications

Cardone 73-42102 is a remanufactured transfer case control module built for direct replacement on select GM trucks and SUVs with the NP8 transfer case. It is pre-programmed at the factory for the listed applications and is engineered for reliable electrical performance, quick installation, and consistent transfer case operation.

Key Features

• Remanufactured transfer case control module for OE-style replacement
• Pre-programmed at the factory for listed vehicle applications
• 100% computerized testing verifies function before release
• Critical components are resoldered to improve electrical connection quality
• Common wear components are fully replaced during remanufacturing
• Guaranteed fit and function for confirmed applications
• Meets or exceeds OEM performance requirements
• Pin/male connector configuration with 32 and 8 terminal counts

Product Details

The Cardone Transfer Case Control Module line focuses on remanufactured electronic control units that are validated for form, fit, durability, and performance. This module is built to restore transfer case control on vehicles that use the NP8 system, including Chevrolet Blazer, GMC Jimmy, Chevrolet S10, GMC Sonoma, and Oldsmobile Bravada applications. Cardone 73-42102 is tested with automated computerized equipment and validated on-vehicle to help ensure dependable operation after installation.

This part cross-references Chevrolet 12577412 and GMC 12577412 for the same application.

What It Helps Fix

• Transfer case shifting problems on NP8-equipped vehicles
• Intermittent electrical communication at the control module
• Faults caused by worn internal solder joints or aged components
• Loss of reliable transfer case engagement or mode selection
• Replacement needs for a failed OE module on GM 4WD systems

Installation Notes

• Compatible With 1999-2005 Chevrolet Blazer, N/A, with NP8 Transfer Case and OE # 12577412
• Compatible With 1999-2005 GMC Jimmy, N/A, with NP8 Transfer Case and OE # 12577412
• Compatible With 1999-2004 Chevrolet S10, N/A, with NP8 Transfer Case and OE # 12577412
• Compatible With 1999-2004 GMC Sonoma, N/A, with NP8 Transfer Case and OE # 12577412
• Compatible With 1999 Oldsmobile Bravada, N/A, with NP8 Transfer Case and OE # 12577412
• This unit is pre-programmed at the factory for the listed applications.
• Verify connector style, terminal count, and OE number before installation.

Quality Assurance

Each module is 100% tested with computerized equipment, then checked through on-car validation routines to confirm form, fit, durability, and performance. Remanufacturing includes resoldering critical components and replacing common wear items to support stable electrical connections and consistent operation.