HomeElectrical, Lighting and Body > RelaysStandard Ignition RY-636 Headlight Relay
Part #: RY-636

Standard Ignition RY-636 Headlight Relay

⚙️ 14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Hyundai, Sonata, XG350, Elantra, and XG300
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Reliable Headlight Relay for Hyundai Vehicles

The Standard Ignition RY-636 headlight relay is designed to provide consistent electrical performance for Hyundai Elantra, Sonata, XG300, and XG350 models. This 12-volt relay supports a 30 amp rating and features a durable blade terminal design to ensure secure connections.

  • 30 amp amperage rating for reliable current handling
  • 12-volt operation compatible with Hyundai electrical systems
  • Female square connector with one connector for easy integration
  • Five male blade terminals for secure and stable connections
  • Includes relay only; mounting bracket not included

Technical Details and Specifications

The Standard Ignition RY-636 headlight relay operates at 12 volts and is rated for 30 amps, making it suitable for the electrical demands of Hyundai Elantra, Sonata, XG300, and XG350 headlights. It features a female square connector with a single connector quantity, designed to fit seamlessly into the vehicle’s wiring harness. The relay has five male blade terminals, which provide a reliable and secure connection to the vehicle’s electrical system. This relay is not rated for continuous duty, so it is intended for intermittent headlight operation. Note that the product does not include a mounting bracket, so installation will require securing the relay appropriately within the vehicle.

Applications and Common Issues Addressed

  • Restores proper headlight function in Hyundai Elantra, Sonata, XG300, and XG350 models
  • Replaces faulty or worn-out headlight relays causing flickering or dim lights
  • Solves electrical interruptions or relay failure affecting headlight operation
  • Prevents overheating by matching amperage requirements for headlight circuits
  • Ensures consistent power delivery to headlights for safe nighttime driving

Installation Notes and Tips

When installing the Standard Ignition RY-636 headlight relay, ensure the vehicle’s ignition is off and the battery is disconnected to avoid electrical shorts. Verify the relay’s connector orientation matches the vehicle’s wiring harness, noting the female square connector and five male blade terminals. Since the relay does not include a mounting bracket, secure it firmly in a location that prevents vibration and moisture exposure. Double-check all connections for tightness before restoring power to the vehicle.

Quality Assurance and Warranty Information

Standard Ignition manufactures the RY-636 headlight relay to meet OEM specifications for Hyundai vehicles, ensuring compatibility and reliable performance. The relay undergoes quality control testing to verify electrical and mechanical integrity. While specific warranty details may vary, Standard Ignition products typically include a limited warranty against defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.

BrandStandard Ignition
Part NumberRY-636
Amperage Rating30 A
Connector GenderFemale
Connector ShapeSquare
ContentsRelay
Continuous DutyNo
FunctionsRelay
Mounting Bracket(s) IncludedNo
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005HyundaiSonataN/A
2005HyundaiXG350N/A
2004HyundaiElantra2.0LL4N/A
2004HyundaiSonataN/A
2004HyundaiXG350N/A
2003HyundaiElantra2.0LL4N/A
2003HyundaiSonataN/A
2003HyundaiXG350N/A
2002HyundaiSonataN/A
2002HyundaiXG350N/A
2001HyundaiSonataN/A
2001HyundaiXG300N/A
2000HyundaiSonataN/A
1999HyundaiSonataN/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:

1R18472049925-034356-21729522538100AR6141R6141RAA2229

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