H7 / H8 / H11 / H16 Headlight Bulb Socket Connector – OEM 5186-00-001A | Universal
Universal replacement 2-pin bulb socket connector for H7, H8, H11, and H16 halogen headlight and fog light bulbs. Cross-references OEM part number 5186-00-001A. Used across European, Asian, and American vehicle platforms as the standard socket for low beam, fog light, and auxiliary light circuits. Available bare or with 15cm pre-wired leads.
| Bulb Type | Wattage | Typical Application |
|---|---|---|
| H7 | 55W | Low beam (European vehicles — VW, BMW, Mercedes, Renault) |
| H8 | 35W | Fog light (BMW, Audi, Volvo) |
| H11 | 55W | Low beam / fog light (Toyota, Honda, Hyundai, Ford, GM) |
| H16 | 19W | Fog light (Toyota, Lexus, Subaru) |
| Pin | Function | Failure Symptom if Corroded / Melted |
|---|---|---|
| 1 | +12V switched power to bulb | Beam / fog light not illuminating, high resistance causing heat |
| 2 | Ground / chassis earth | Flickering beam, intermittent operation |
| Attribute | Detail |
|---|---|
| Pin Count | 2-Pin |
| OEM Part Number | 5186-00-001A |
| Compatible Bulb Types | H7, H8, H11, H16 |
| Housing Material | High-temp nylon (PA66), heat-rated for bulb proximity |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Low beam, fog light, auxiliary light bulb socket |
H7 and H11 halogen bulbs draw 55W continuously at 12V (approximately 4.6A). A corroded or loose bulb socket increases contact resistance at the terminal, converting electrical energy into heat rather than light. The socket housing — made from high-temp nylon — begins to deform at sustained temperatures above 150°C. On VW, BMW, and Toyota platforms, a melted H7 or H11 socket is the most common cause of headlight failure after the bulb itself. The socket must be replaced before fitting a new bulb, as a damaged socket will melt the replacement bulb’s base.
Q: My headlight socket is melted — can I just replace the socket?
A: Yes, if the wiring behind the socket is undamaged. Cut back to clean wire, splice in the new socket with 15cm pre-wired leads, and ensure the new bulb seats fully to eliminate contact resistance. Always replace the socket before fitting a new bulb.
Q: Does this fit H8 and H16 as well as H7 and H11?
A: Yes. H7, H8, H11, and H16 share the same 2-pin socket housing geometry (PGJ19 base family). The OEM 5186-00-001A socket fits all four bulb types.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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