Chevrolet Cruze 4-Pin 1.2mm 0509 Series Lamp / Light Socket Connector – OEM MG641238-5 / 7182-8740-30
Direct OEM-specification replacement for the Sumitomo 0509 series 4-pin wire harness connector used on lamp and light socket circuits on the Chevrolet Cruze and related GM platforms. Cross-references Sumitomo OEM part numbers MG641238-5, 7182-8740-30, and 7182-8740. Uses the 1.2mm contact series in black nylon housing — the Sumitomo 0509 series is a compact, high-density connector used for multi-circuit lighting harnesses where space is limited in the headlight or taillight assembly area.
The 4-pin 0509 series lamp connector is used on multi-function lighting assemblies on the Chevrolet Cruze, where multiple lighting circuits (position light, DRL, turn signal, and brake light) are consolidated into a single 4-pin connector. A failed connector causes multiple simultaneous lighting faults, which can be difficult to diagnose without connector inspection. The 1.2mm terminal is extremely fine and susceptible to corrosion and mechanical damage during lighting assembly removal.
| OEM Number | Application |
|---|---|
| MG641238-5 | Sumitomo 0509 4-pin connector (primary) |
| 7182-8740-30 | Sumitomo 0509 4-pin connector (alternate) |
| 7182-8740 | Sumitomo 0509 4-pin connector (abbreviated) |
| Attribute | Detail |
|---|---|
| Pin Count | 4-Pin |
| Contact Series | 1.2mm pitch (Sumitomo 0509 series) |
| Housing Material | Nylon, black |
| OEM Part Numbers | MG641238-5 / 7182-8740-30 / 7182-8740 |
| Applications | Lamp socket, light socket, multi-circuit lighting harness |
| Compatible Models | Chevrolet Cruze (J300 / J400), related GM platforms |
| Terminal Included | Yes |
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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4 Pin Connectors
