Honda 4-Pin Alternator Connector & Terminal Kit – OBD2 / K-Series

OEM-Style 4-Pin Alternator Connector for Honda Charging Systems

The Honda 4-Pin Alternator Connector & Terminal Kit is an OEM-style replacement connector used on OBD2 Honda platforms and K-series engines. This connector interfaces directly with the alternator and is responsible for critical charging system signals including field control and feedback to the ECU and chassis electrical system.

This kit provides a professional solution for repairing damaged alternator connectors or building custom engine harnesses using proper terminals and OEM-style connector geometry.

Designed for Professional & Motorsport Wiring Applications

Charging system reliability is essential for ECU operation, ignition stability, and overall vehicle electrical health. This connector kit is suitable for street, track, and motorsport environments, offering secure terminal retention and long-term durability when installed correctly.

The connector housing is supplied in black OEM-style plastic, matching factory appearance and fitment.

Common Applications

This connector is commonly used for:

• Honda OBD2 alternator wiring

• K-Series engine swaps and harness builds

• Engine harness repair or restoration

• Custom or tucked engine harness projects

• Standalone ECU installations requiring proper alternator integration

Frequently found on Civic, Integra, RSX, Accord, TSX, and other Honda platforms depending on year and engine.

Correct Terminal Support with Spare Included

This connector housing accepts terminals compatible with 22–16 AWG wiring, suitable for alternator control and signal circuits.

Each kit includes an extra terminal, allowing margin for installation errors or future service without delaying a build.

What’s Included

• 1× Honda 4-Pin Alternator Connector Housing (Black)

• 5× Terminals (22–16 AWG compatible, 1 spare included)

Please reference product photos to confirm connector style and orientation before purchasing.

Installation Notes

Proper open-barrel crimping tools are required for correct terminal installation. Professional wiring knowledge is recommended to ensure correct pin orientation and charging system function.

Incorrect alternator wiring may result in charging faults, ECU errors, or electrical system damage.