VW 4-Pin Light & Lamp Harness Connector – OEM 1H0973734 | Golf Polo Passat Jetta
Direct OEM-specification replacement for the Volkswagen 4-pin connector used in tail light, interior light, and body lamp harnesses. Cross-references OEM part number 1H0973734 (1H0 973 734). Used across VW Golf Mk3/Mk4, Polo, Passat, and Jetta platforms. Available bare or with 15cm pre-wired leads.
| Segment | Meaning |
|---|---|
| 1H0 | VW Golf Mk3 / Polo platform code |
| 973 | Electrical connector component group |
| 734 | 4-pin connector variant |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | Tail / position light power (+12V) | Tail light out |
| 2 | Brake light power (+12V) | Brake light not illuminating |
| 3 | Turn signal power (+12V) | Rear turn signal not functioning |
| 4 | Ground / chassis earth (shared) | Multiple lighting functions out simultaneously |
| Attribute | Detail |
|---|---|
| Pin Count | 4-Pin |
| OEM Part Number | 1H0973734 / 1H0 973 734 |
| Housing Material | Nylon (PA66) |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Tail light harness, interior lamp harness, body lighting |
| Compatible Brands | Volkswagen |
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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4 Pin Connectors
