Honda K-Series / Mazda Miata 24-Way ECU Connector Plug Kit

OEM-Style 24-Pin ECU Connector for K-Series & NB Miata Applications

The 24-Way ECU Plug Connector Kit is an OEM-style replacement connector used in Honda K-Series ECU applications and select NB Mazda Miata ECU configurations. This connector is commonly required for ECU repairs, standalone conversions, and custom harness fabrication where a reliable 24-pin ECU interface is needed.

Designed for professional harness builds and motorsport applications, this connector provides proper pin alignment, terminal retention, and long-term electrical reliability.

Ideal for ECU Swaps, Standalone Conversions & Harness Repairs

ECU connectors are often damaged due to corrosion, broken locking tabs, improper depinning, or prior wiring modifications. Replacing the connector ensures proper signal integrity and eliminates intermittent faults caused by loose or worn terminals.

This kit is commonly used for:

• Honda K-Series ECU harness repair

• NB Mazda Miata ECU connector replacement

• Standalone ECU adapter harnesses

• Custom jumper or extension harness builds

• Motorsport and race vehicle wiring projects

OEM-Style Fitment with Secure Terminal Retention

The connector housing is manufactured to OEM-style specifications, ensuring proper mating with compatible ECU interfaces. Terminal retention is secure when properly crimped and installed using correct open-barrel crimping tools.

This connector is equivalent to Toyota connector 90980-11476, expanding cross-platform compatibility for advanced wiring projects.

Cross-Platform Compatibility

Common applications include:

• Honda K20 / K24 ECU systems

• NB Mazda Miata ECU setups

• Select Toyota-based connector interfaces using cross-reference 90980-11476

Due to ECU variation by year and model, always reference connector shape and keying before installation.

What’s Included

• 1× 24-Way ECU Connector Housing

• Matching Terminals

• Seals (where applicable)

This kit includes terminals and necessary components for proper harness integration.

Installation Notes

Professional wiring knowledge is recommended. Proper depinning and crimping tools are required for correct terminal installation and long-term reliability.

Minor adaptation may be required depending on ECU version and harness configuration.