Plug and pins only - AMP 26 pin Key 3 Suits Nexus Series ECUs

Overview

The AMP 26-pin Key 3 connector is the exact OEM-grade plug that mates to your Haltech Nexus R5 ECU, essential for custom harness fabrication or converting existing looms. This isn't a generic substitute—it's the proper Deutsch-style connector with precision-machined pins that ensures reliable connection integrity in high-vibration motorsport environments.

Technical Specifications

• Part Number: HT-030014
• Connector Type: AMP 26-pin sealed automotive connector
• Key Configuration: Key 3 orientation
• Pin Style: Crimp-on terminals included
• Application: Haltech Nexus R5 ECU interface
• Environment Rating: Sealed for engine bay use

Why You Need This

When fabricating a custom harness for Nexus R5 swaps—whether you're dropping a Nexus into an RB25 Skyline, building a standalone setup for an SR20 drift car, or converting a carburetted classic to EFI—you need the correct ECU-side connector. Generic plugs simply don't cut it in professional installations. The pin assignments, contact resistance, and sealing integrity must be spot-on, or you'll face intermittent faults that'll drive you mental during tuning.

This is particularly crucial for workshop builds where you're adapting an existing OEM harness to work with the Nexus R5. Rather than butchering the ECU plug (which kills resale value), professional harness builders splice this connector into the existing loom, maintaining clean connections throughout. We see this approach constantly with Japanese import conversions where the original ECU connector doesn't match the Nexus pinout—this plug lets you bridge that gap properly.

ECU & System Compatibility

Specifically designed for the Haltech Nexus R5 ECU. This Key 3 orientation connector matches the R5's ECU-side interface exactly. Not compatible with other Nexus variants or Elite series ECUs, which use different pin counts and key orientations.

What's in the Box

• AMP 26-pin sealed connector housing
• 26x crimp-on terminal pins
• Connector retaining hardware

Complete Your Build

Most customers fabricating Nexus R5 harnesses also need proper crimping tools, additional connector pins for spares, and heat-shrink or protective sleeving for the finished harness. Our technical team can specify the exact tools and materials you'll need for your particular build—whether it's a ground-up race car harness or adapting an existing loom. Contact us for application-specific advice and UK stock availability on companion parts.