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Dorman 600-120 Transfer Case Encoder RingOE Quality 60-Day Returns
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Part #: 600-120

Dorman 600-120 Transfer Case Encoder Ring

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⚙️ 93 vehicles fit this part
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🚗Fitment: Chevrolet, GMC, and Cadillac, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Sierra 1500 Classic, Sierra 1500 HD Classic, Sierra 2500 HD Classic, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Avalanche 2500, Silverado 1500, Silverado 1500 HD, Silverado 2500 HD, Suburban 1500, Suburban 2500, Tahoe, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Yukon, Yukon XL 1500, Yukon XL 2500, Silverado 2500, and Sierra 2500
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Reliable Transfer Case Encoder Ring for GM Trucks and SUVs

The Dorman 600-120 Transfer Case Encoder Ring is designed to provide accurate transfer case sensor readings for select Cadillac, Chevrolet, and GMC models. Engineered with a durable plastic housing and a 3-blade terminal type, this encoder ring ensures consistent performance in demanding driving conditions.

  • Durable plastic housing for lightweight strength
  • Includes transfer case encoder ring in package
  • 3-blade terminal type for secure electrical connection
  • Compatible with multiple GM trucks and SUVs
  • Part number 600-120 for precise identification

Product Details and Specifications

This transfer case encoder ring from Dorman is built to meet the exacting standards required for proper transfer case sensor operation. The plastic housing material offers resistance to corrosion and wear, while the 3-blade terminal type ensures a reliable electrical interface with the vehicle’s transfer case control system. The part number 600-120 corresponds to a component compatible with a wide range of GM vehicles, including Cadillac Escalade models, Chevrolet Avalanche 1500 and 2500, Silverado 1500 and 2500 series, GMC Sierra 1500 and 2500 series, Yukon, Yukon XL, Tahoe, and Suburban 1500 and 2500.

Compatible Vehicles and Applications

This transfer case encoder ring is compatible with the following makes and models:

  • Cadillac Escalade, Escalade ESV, Escalade EXT
  • Chevrolet Avalanche 1500, Avalanche 2500
  • Chevrolet Silverado 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic
  • GMC Sierra 1500, 1500 Classic, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 2500 HD Classic
  • Chevrolet Suburban 1500, Suburban 2500
  • Chevrolet Tahoe
  • GMC Yukon, Yukon XL 1500, Yukon XL 2500

Common Issues Addressed by the Transfer Case Encoder Ring

  • Erratic or incorrect transfer case sensor readings
  • Intermittent 4WD or AWD system engagement problems
  • Transfer case warning lights or error codes
  • Difficulty shifting between drive modes
  • Unusual noises or vibrations from the transfer case area

Installation Notes and Tips

When installing the Dorman 600-120 transfer case encoder ring, ensure the transfer case is clean and free of debris to prevent sensor interference. Handle the plastic housing carefully to avoid damage. Verify the 3-blade terminal connection is secure and free of corrosion. It is recommended to consult the vehicle’s service manual for specific transfer case encoder ring installation procedures and torque specifications.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 600-120 transfer case encoder ring undergoes rigorous quality control testing to ensure durability and reliable operation. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandDorman
Part Number600-120
Housing MaterialPlastic
Package ContentsTransfer Case Encoder Ring
Terminal Type3 Blade

This part fits 93 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2007ChevroletSilverado 1500 Classic4WDN/A
2007ChevroletSilverado 1500 HD Classic4WDN/A
2007ChevroletSilverado 2500 HD Classic4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2007GMCSierra 1500 ClassicAWDN/A
2007GMCSierra 1500 Classic4WDN/A
2007GMCSierra 1500 HD Classic4WDN/A
2007GMCSierra 2500 HD Classic4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2006CadillacEscaladeAWDN/A
2006CadillacEscalade ESVAWDN/A
2006CadillacEscalade EXTAWDN/A
2006ChevroletAvalanche 15004WDN/A
2006ChevroletAvalanche 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2006ChevroletSilverado 15004WDN/A
2006ChevroletSilverado 1500 HD4WDN/A
2006ChevroletSilverado 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2006ChevroletSuburban 1500AWDN/A
2006ChevroletSuburban 15004WDN/A
2006ChevroletSuburban 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2006ChevroletTahoe4WDN/A
2006GMCSierra 1500AWDN/A
2006GMCSierra 15004WDN/A
2006GMCSierra 1500 HD4WDN/A
2006GMCSierra 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2006GMCYukonAWDN/A
2006GMCYukon4WDN/A
2006GMCYukon XL 1500AWDN/A
2006GMCYukon XL 15004WDN/A
2006GMCYukon XL 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2005CadillacEscaladeAWDN/A
2005CadillacEscalade ESVAWDN/A
2005CadillacEscalade EXTAWDN/A
2005ChevroletAvalanche 15004WDN/A
2005ChevroletAvalanche 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2005ChevroletSilverado 1500AWDN/A
2005ChevroletSilverado 15004WDN/A
2005ChevroletSilverado 1500 HD4WDN/A
2005ChevroletSilverado 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2005ChevroletSuburban 15004WDN/A
2005ChevroletSuburban 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2005ChevroletTahoe4WDN/A
2005GMCSierra 1500AWDN/A
2005GMCSierra 15004WDN/A
2005GMCSierra 1500 HD4WDN/A
2005GMCSierra 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2005GMCYukonAWDN/A
2005GMCYukon4WDN/A
2005GMCYukon XL 1500AWDN/A
2005GMCYukon XL 15004WDN/A
2005GMCYukon XL 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004CadillacEscaladeAWDN/A
2004CadillacEscalade ESVAWDN/A
2004CadillacEscalade EXTAWDN/A
2004ChevroletAvalanche 15004WDN/A
2004ChevroletAvalanche 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004ChevroletSilverado 1500AWDN/A
2004ChevroletSilverado 15004WDN/A
2004ChevroletSilverado 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004ChevroletSilverado 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004ChevroletSuburban 15004WDN/A
2004ChevroletSuburban 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004ChevroletTahoe4WDN/A
2004GMCSierra 1500AWDN/A
2004GMCSierra 15004WDN/A
2004GMCSierra 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004GMCSierra 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2004GMCYukonAWDN/A
2004GMCYukon4WDN/A
2004GMCYukon XL 1500AWDN/A
2004GMCYukon XL 15004WDN/A
2004GMCYukon XL 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003CadillacEscaladeAWDN/A
2003CadillacEscalade ESVAWDN/A
2003CadillacEscalade EXTAWDN/A
2003ChevroletAvalanche 15004WDN/A
2003ChevroletAvalanche 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003ChevroletSilverado 1500AWDN/A
2003ChevroletSilverado 15004WDN/A
2003ChevroletSilverado 1500 HD4WDN/A
2003ChevroletSilverado 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003ChevroletSilverado 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003ChevroletSuburban 15004WDN/A
2003ChevroletSuburban 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003ChevroletTahoe4WDN/A
2003GMCSierra 1500AWDN/A
2003GMCSierra 15004WDN/A
2003GMCSierra 1500 HD4WDN/A
2003GMCSierra 25004WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003GMCSierra 2500 HD4WDN/AFits vehicles with RPO Code NP8 for 2 Speed Push Button Shift Transfer Case.
2003GMCYukonAWDN/A
2003GMCYukon4WDN/A
2003GMCYukon XL 1500AWDN/A
2003GMCYukon XL 15004WDN/A
2003GMCYukon XL 25004WDN/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:

8.90E+0788962315TCA99

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

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