Honda OBD1 4-Pin Alternator Connector & Terminal Kit (Round Green)

OEM-Style Denso Alternator Connector for Honda OBD1 Applications

The Honda OBD1 4-Pin Alternator Connector & Terminal Kit is an OEM-style replacement connector commonly used on Denso alternators found in many Honda platforms. This round green 4-pin connector is most frequently associated with OBD1 Honda alternator wiring, but is also used on other Denso-equipped applications.

This kit provides a professional solution for repairing damaged alternator connectors or building custom engine harnesses while retaining proper OEM-style fitment and charging system functionality.

Designed for Professional & Motorsport Wiring Applications

A reliable alternator connection is critical for proper charging system operation, ECU stability, and overall 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 round green housing matches the classic OBD1 Honda alternator connector used on many factory harnesses.

Common Honda & Denso Applications

This connector is commonly used on:

• Honda OBD1 alternator wiring

• B-Series engines

• D-Series engines

• H-Series engines

• F-Series engines

• Other vehicles equipped with Denso alternators using this connector style

Frequently found on Civic, Integra, CRX, Prelude, Accord, and other Honda platforms depending on year and alternator type.

Correct Terminal Support with Spare Included

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

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

What’s Included

• 1× Honda OBD1 4-Pin Alternator Connector Housing (Round Green)

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

Please reference product photos to confirm connector style and keying 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 operation.

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