H8 / H9 / H11 Xenon Headlight / Cornering Lamp Bulb Socket – OEM 12124817 / 12124819

Direct OEM-specification replacement for the 2-pin waterproof bulb socket used on H8, H9, and H11 halogen and xenon headlight bulbs, cornering lamps, and fog lights across a wide range of vehicle platforms. Cross-references GM / Delphi OEM part numbers 12124817 and 12124819. Black nylon and rubber housing with waterproof sealing — the H11 socket is the most widely used headlight bulb connector in the automotive industry, fitted to low-beam, high-beam, fog light, and cornering lamp circuits on European, Asian, and American vehicles.

What Problem Does This Connector Solve?

The H11 bulb socket is located directly behind the headlight assembly, exposed to heat from the bulb, road spray, and vibration. The plastic locking tab fractures over time, allowing the socket to work loose from the bulb base and cause an intermittent or permanent headlight failure. Corrosion of the 2-pin terminals inside the socket causes high resistance, which reduces bulb brightness and can cause the bulb to overheat and fail prematurely. Replacing the socket is a 10-minute repair that restores full headlight performance without replacing the entire headlight assembly.

Bulb Type Cross-Reference

Key Specifications

Compatible Applications

• Toyota / Lexus – H11 low-beam and H9 high-beam headlight socket
• Honda / Acura – H11 low-beam and H8 fog light socket
• BMW / Mercedes-Benz – H11 low-beam and cornering lamp socket
• Volkswagen / Audi / Skoda – H11 low-beam and H8 fog light socket
• Ford / GM / Chevrolet – H11 low-beam and H9 high-beam socket (OEM 12124817 / 12124819)
• Hyundai / Kia / Nissan / Mazda – H11 low-beam and fog light socket

Frequently Asked Questions

Q: My headlight is dim or flickering — could it be the socket?
A: Yes. A corroded or loose H11 socket is a common cause of dim or flickering headlights. The 2-pin terminal corrodes over time, increasing resistance and reducing current to the bulb. Inspect the socket before replacing the headlight bulb or ballast.

Q: Are terminals included?
A: Yes, terminals are included with all variants.