This alternator plug pigtail incorporates a Weather Pack style seal and an in-line resistor that allows, but doesn't require, a charge light in the exciter circuit. The exciter wire is blacked out as it leaves the alternator plug so it blends into a flex loom.
Specifications:
- Finish: Yellow
- Material: Wire
- Wiring Harness Length: 8 ft
- Product Type: Pigtail Connector
- Part Number: 197-400
FAQ
What alternators does this fit?
GM alternators with a 4-pin oval connector.
Does it include a resistor for the charge light circuit?
Yes, an in-line 560 ohm, 1/2 watt resistor that allows but does not require a charge light.
How long is the harness?
8 feet.
What power source does it need?
A switched 12V source that's "on" while the engine is running.

