13 colors
ST Wiring Supply
Automotive wire
Thin-wall TXL wire by the meter in 16, 18 and 22 AWG, in the color code we use in SpeedTech harnesses.
ST color codeOne color
One color
for every signal
These are the colors we use in our harnesses. Use the same code in your install and any technician will be able to diagnose it in minutes.
| Color | Use in the ST harness | 16 AWG | 18 AWG | 22 AWG |
|---|---|---|---|---|
| Black | VR− / Hall / clutch in the ST harness | — | — | $0.76 |
| Brown | Grounds (GND · SGND) in the ST harness | $1.20 | $1.00 | $0.76 |
| Red | +12 V, 5 V reference and VR+ in the ST harness | $1.20 | $1.00 | $0.76 |
| Orange | Auxiliary / general use | — | — | $0.76 |
| Yellow | Coils in the ST harness | — | — | $0.76 |
| Dark green | Auxiliary / general use | — | — | $0.76 |
| Dark blue | Auxiliary / general use | — | — | $0.76 |
| Purple | Fan in the ST harness | — | — | $0.76 |
| Gray | Tachometer in the ST harness | — | — | $0.76 |
| Light blue | Fuel pump in the ST harness | — | — | $0.76 |
| Light green | Intake air temperature (IAT) in the ST harness | — | — | $0.76 |
| Pink | Coolant temperature (CLT) in the ST harness | — | — | $0.76 |
| Tan | TPS in the ST harness | — | — | $0.76 |
| White | Injectors in the ST harness | — | $1.00 | — |
Prices per meter in USD. Tap a price to choose that color and gauge.
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