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Dorman 599-104 Transfer Case Control ModuleOE Quality 60-Day Returns
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Part #: 599-104

Dorman 599-104 Transfer Case Control Module

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⚙️ 24 vehicles fit this part
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Select your vehicle to confirm fitment
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chevrolet, and GMC, Escalade, Tahoe, Yukon, K1500, K1500 Suburban, K2500, and K2500 Suburban
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Overview of Dorman Transfer Case Control Module 599-104

The Dorman Transfer Case Control Module 599-104 is designed to provide reliable control for transfer case operations in select GM vehicles. This module features an orange connector and pin-type terminals, ensuring secure and precise electrical connections for your transfer case system.

  • Connector Color: Orange for easy identification
  • Terminal Type: Pin terminals for stable electrical contact
  • Package Contents: Includes one transfer case control module
  • Compatible with multiple GM models including Cadillac Escalade and Chevrolet Tahoe
  • Part Number: 599-104 for accurate replacement

Detailed Product Description

The Dorman 599-104 transfer case control module is engineered to meet the specific requirements of transfer case systems in Cadillac, Chevrolet, and GMC trucks and SUVs. The orange connector color aids in quick visual verification during installation or diagnostics. Pin-type terminals provide a reliable connection that resists corrosion and vibration, which is critical for maintaining consistent transfer case engagement and disengagement. This module is compatible with models such as the Cadillac Escalade, Chevrolet K1500 and K2500 Suburban, Tahoe, and GMC Yukon, ensuring proper fitment and function.

Common Applications and Issues Addressed

  • Restores proper transfer case shifting and engagement
  • Resolves intermittent or failed transfer case control signals
  • Eliminates issues related to faulty electrical connections in the transfer case system
  • Addresses warning lights or error codes related to transfer case control
  • Improves drivetrain performance in compatible GM trucks and SUVs

Installation Notes and Tips

  • Ensure vehicle compatibility by verifying make, model, and year before installation
  • Disconnect the battery prior to module replacement to prevent electrical damage
  • Handle the orange connector carefully to avoid pin damage
  • Follow manufacturer torque specifications for mounting hardware
  • After installation, perform a system reset or relearn procedure if required by the vehicle

Quality Assurance and Warranty

Dorman transfer case control modules undergo rigorous testing to meet OEM standards for durability and performance. The 599-104 part is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship. This ensures dependable operation and peace of mind when replacing your transfer case control module in Cadillac Escalade, Chevrolet K1500, K2500, Tahoe, and GMC Yukon vehicles.

BrandDorman
Part Number599-104
Connector ColorOrange
Package ContentsTransfer Case Control Module
Terminal TypePin

This part fits 24 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2000CadillacEscalade4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2000ChevroletTahoe4WD5.7LV8N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2000GMCYukon4WD5.7LV8N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999CadillacEscalade4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999ChevroletK1500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999ChevroletK1500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999ChevroletK2500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999ChevroletK2500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999ChevroletTahoe4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999GMCK1500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999GMCK1500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999GMCK2500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999GMCK2500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1999GMCYukon4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998ChevroletK1500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998ChevroletK1500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998ChevroletK2500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998ChevroletK2500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998ChevroletTahoe4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998GMCK1500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998GMCK1500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998GMCK2500N/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998GMCK2500 SuburbanN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
1998GMCYukon4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1257742173-42103

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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