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A Single High-Current Battery Connector for Nexus R3
This is the Haltech NEXUS R3 120A SurLok connector in black, used for the negative battery connection to the Nexus R3 ECU. It crimps onto 4 AWG battery cable for a secure, high-current ground connection.
Key Features
- 120A rated SurLok connector.
- Black housing for negative (ground) battery connection.
- Designed to suit the Haltech Nexus R3.
- Crimps to 4 AWG battery cable.
Fitment
| Application | Requirements |
|---|---|
| Haltech Nexus R3 ECU negative battery connection | Requires 4 AWG battery cable and a compatible crimping tool, sold separately |
Specifications
| Detail | Value |
|---|---|
| Brand | Haltech |
| Connector Type | SurLok |
| Current Rating | 120A |
| Color | Black |
| Cable Size | 4 AWG |
| Suits | Nexus R3 |
What's Included
- One 120A black SurLok connector
About Haltech
Haltech designs engine management systems, sensors, and wiring components for performance and race applications, using SurLok connectors on its Nexus ECU line for secure, high-current battery connections.
FAQ
What ECU does this connector fit?
The Haltech Nexus R3.
What current rating does this connector carry?
120A.
Is this connector for the positive or negative terminal?
Negative (ground), based on its black color designation. Pair it with the red SurLok connector, sold separately, for the positive connection.
What cable size does this connector use?
4 AWG battery cable.
Is battery cable included?
No, this connector is sold on its own. Battery cable must be sourced separately.
Will this fit the Nexus R5?
No, the Nexus R5 uses a 200A SurLok connector instead. Confirm your ECU model before ordering.
Installation Instructions
- Cut 4 AWG battery cable to the required length for the negative run.
- Strip the cable end and crimp it into the SurLok connector using a compatible crimping tool.
- Connect the black SurLok connector to the Nexus R3 negative battery terminal.
- Route and secure the battery cable away from heat sources and moving parts.
- Verify a secure connection before powering up the system.
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