Standard Ignition RY-636 Headlight Relay

Headlight Relay for Hyundai Applications

Standard Ignition RY-636 is a 12-volt headlight relay built for direct electrical switching in supported Hyundai applications. It uses a female square connector, 5 male blade terminals, and a 30 amp amperage rating to help control headlight circuit operation in the vehicle’s lighting system.

Compatible With 1999-2005 Hyundai Sonata, 2002-2005 Hyundai XG350, 2003-2004 Hyundai Elantra, and 2001 Hyundai XG300. Standard Ignition RY-636 is a practical replacement when the original relay no longer provides consistent headlight control.

Key Features

• Part type: headlight relay
• Brand: Standard Ignition
• Part number: RY-636
• 12-volt electrical rating
• 30 amp amperage rating
• Female connector with square shape
• 5 male blade terminals
• Relay function for headlight circuit switching
• Mounting bracket not included
• Continuous duty: no

Detailed Description

Standard Ignition RY-636 is an electrical relay used in headlight circuit control for select Hyundai vehicles. It is built with a single female connector, blade-style male terminals, and a square connector profile to match the specified application. For buyers searching for a Hyundai Sonata headlight relay, Hyundai XG350 relay, or Hyundai Elantra headlight relay, this part number provides a direct reference point for fitment-based replacement shopping. This part cross-references Remy 20499 for the same application.

Use Standard Ignition RY-636 when the lighting circuit needs a relay replacement that matches the vehicle’s electrical requirements and terminal layout. The 30 amp rating and 12-volt design support standard automotive headlight relay operation in the listed Hyundai models.

Common Issues This Relay May Address

• Headlights that do not switch on consistently
• Intermittent headlight operation
• Relay-related loss of power to the lighting circuit
• Electrical switching faults in the headlight system
• Replacement needs after relay contact wear

Installation Notes and Tips

Verify connector shape, terminal count, and voltage before installation. Standard Ignition RY-636 uses a 5-terminal blade layout with a female square connector, so the replacement should match the original relay configuration in the vehicle. Confirm fitment for 1999-2005 Hyundai Sonata, 2002-2005 Hyundai XG350, 2003-2004 Hyundai Elantra, or 2001 Hyundai XG300 before installation. If the original relay shows heat damage or corrosion, inspect the surrounding connector and wiring for related issues.

Quality Assurance

Standard Ignition supplies electrical components for service replacement applications, and RY-636 is specified to the listed relay configuration for the supported Hyundai vehicles.