HomeTransfer Case > RelaysStandard Ignition RY-1625 Transfer Case Relay
Part #: RY-1625

Standard Ignition RY-1625 Transfer Case Relay

⚙️ 27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, K3500 and K1500
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Reliable Transfer Case Relay for Chevrolet and GMC Trucks

The Standard Ignition RY-1625 transfer case relay is designed specifically for Chevrolet K1500 and K3500, as well as GMC K1500 and K3500 models. This 12-volt relay ensures proper operation of your vehicle's transfer case system, maintaining smooth four-wheel drive engagement.

  • Connector Gender: Female
  • Functions as a transfer case relay
  • Terminal Gender: Male
  • Five blade terminals for secure connections
  • 12-volt electrical system compatibility
  • No mounting brackets included

Product Details and Specifications

The Standard Ignition RY-1625 transfer case relay features a female connector and five male blade terminals, designed to fit the electrical requirements of Chevrolet and GMC K1500 and K3500 trucks. Operating at 12 volts, this relay controls the transfer case engagement, ensuring reliable switching between two-wheel and four-wheel drive modes. The blade terminals provide a secure and durable connection, minimizing electrical resistance and potential failure points. Although mounting brackets are not included, the relay is designed for straightforward installation within the existing transfer case relay housing.

Common Applications and Problem Resolution

  • Intermittent or non-functioning four-wheel drive engagement
  • Failure of transfer case to shift between drive modes
  • Electrical relay faults causing transfer case system errors
  • Replacement of worn or damaged transfer case relay components
  • Restoring proper electrical control to transfer case operation

Installation Notes and Tips

When installing the Standard Ignition RY-1625 transfer case relay, ensure the vehicle's battery is disconnected to prevent electrical shorts. Verify the relay terminals match the vehicle’s wiring harness connectors, noting the female connector and male blade terminals. Since mounting brackets are not included, use the existing relay bracket or housing in your Chevrolet or GMC K1500/K3500. Confirm all connections are secure and free of corrosion before reassembling. Testing the transfer case operation after installation is recommended to ensure proper function.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The RY-1625 transfer case relay undergoes rigorous quality control to ensure durability and reliable performance in Chevrolet and GMC K1500 and K3500 trucks. Warranty coverage details can be obtained from Standard Ignition, providing assurance against manufacturing defects under normal use conditions.

BrandStandard Ignition
Part NumberRY-1625
Connector GenderFemale
FunctionsTransfer Case Relay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade Terminals
Voltage12

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000ChevroletK35007.4LV8N/A
2000ChevroletK35005.7LV8N/A
2000ChevroletK35006.5LV8N/A
2000GMCK35006.5LV8N/A
2000GMCK35005.7LV8N/A
2000GMCK35007.4LV8N/A
1999ChevroletK1500N/A
1999ChevroletK35005.7LV8N/A
1999ChevroletK35007.4LV8N/A
1999ChevroletK35006.5LV8N/A
1999GMCK35006.5LV8N/A
1999GMCK35005.7LV8N/A
1999GMCK35007.4LV8N/A
1998ChevroletK1500N/A
1998ChevroletK35007.4LV8N/A
1998ChevroletK35005.7LV8N/A
1998ChevroletK35006.5LV8N/A
1998GMCK35005.7LV8N/A
1998GMCK35007.4LV8N/A
1998GMCK35006.5LV8N/A
1996ChevroletK1500N/A
1996ChevroletK35006.5LV8N/A
1996ChevroletK35007.4LV8N/A
1996ChevroletK35005.7LV8N/A
1996GMCK35005.7LV8N/A
1996GMCK35007.4LV8N/A
1996GMCK35006.5LV8N/A

* 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:

121820861R22642087256-2521AR7129R7128RAA2706

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