4-Pin Unsealed Female Starter & Sensor Connector – Yazaki 7123-2840 Automotive Wiring Harness
Direct OEM-specification replacement for the Yazaki 4-way unsealed female connector, cross-referencing part number 7123-2840. Used across Toyota, Honda, and other Japanese vehicle platforms for starter motor, sensor, and auxiliary circuit harness connections in protected interior locations.
| Attribute | Specification |
|---|---|
| OEM Part Number | 7123-2840 (Yazaki) |
| Pin Count | 4-Way |
| Gender | Female (socket) |
| Application | Starter motor, sensor, auxiliary circuit harness |
| Seal Type | Unsealed (non-waterproof) |
| Housing Material | PA66 Nylon – heat and chemical resistant |
| Terminal Plating | Tin-plated copper |
| Operating Voltage | 12V DC |
The Yazaki 7123 series is the OEM female housing standard used across Toyota, Honda, and Nissan vehicle platforms. The 7123-2840 is used for starter motor relay, sensor, and auxiliary circuit harness connections in protected under-dash and engine bay junction box locations.
1 × 4-Way Female Connector Socket (7123-2840) with wire leads and terminal inserts pre-installed.
Q: What is the mating male connector for Yazaki 7123-2840?
A: The Yazaki 7123 series female mates with the corresponding Yazaki 7282 series male housing of the same pin count. Cross-reference the male housing part number in your vehicle’s wiring diagram before ordering.
Q: Is the 7123-2840 compatible with Toyota and Honda vehicles?
A: Yes. The Yazaki 7123 series is used across Toyota, Honda, and Nissan platforms. Verify pin count and wire gauge against your model’s wiring diagram before installation.
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4 Pin Connectors
