Description
Part Number: 197-400
Holley GM 4-Pin Alternator Pigtail Harness
Engineered specifically for GM AD-series alternators and LS engine swaps, the Holley 197-400 pigtail connector provides a reliable, weather-sealed electrical connection with integrated resistance protection.
Key Features
- ☑ Fits GM AD-style alternators with a 4-pin oval connector
- ☑ Weather Pack style seal for superior weatherproofing in wet engine bays
- ☑ Integrated inline 560 Ohm, 1/2-Watt resistor protects voltage regulator
- ☑ Generous 8-foot wire length for seamless wiring and clean routing
- ☑ Compatible with or without an OEM dash charge indicator light
- ☑ Essential harness for LS engine swaps and custom vehicle builds
Technical Specifications
| Brand | Holley |
|---|---|
| MPN | 197-400 |
| Connector Style | 4-Pin Oval (GM AD Series) |
| Resistor Rating | 560 Ohm, 0.5 Watt (Inline) |
| Wire Length | 8 Feet (2.4m) |
| Weather Seal | Weather Pack Style Rubber Seal |
| Voltage Requirement | 12V Switched Ignition Source |
What’s Included in the Box
- 1 x Holley 197-400 4-Pin Alternator Plug Assembly with 8ft Pre-wired Lead
- Integrated Inline 560 Ohm Resistor Assembly
As an industry leader in high-performance fuel and electrical systems, Holley products deliver unbeatable durability and precision engineering. At JP Racing, we carry genuine Holley components stocked locally in the UK with fast dispatch and dedicated technical support for your motorsport build.
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