Nissan 2-Pin Wiper & Front Turn Signal Connector – OEM 7123-8520-40 / 7222-8520-40 | Sumitomo
Direct OEM-specification replacement for the Nissan 2-pin connector used on windscreen wiper motors and front turn signal light harnesses. Cross-references Sumitomo part numbers 7123-8520-40 (male/plug side), 7222-8520-40 (female/socket side), PB015-02850, 7222-8521-80, and 7123-8521-80. Used across Nissan petrol and diesel platforms. Available bare or with 15cm pre-wired leads.
Nissan wiper motor connectors are located in the scuttle panel area at the base of the windscreen, where water accumulates from rain and car wash. The connector is exposed to standing water, road salt, and temperature cycling between −20°C and +80°C. The 2-pin connector’s ground pin is the first to corrode, causing the wiper motor to lose its earth return. The result is a wiper that stops mid-sweep or fails to park correctly — a fault frequently misdiagnosed as a failed wiper motor or wiper relay before the connector is inspected.
Front turn signal connectors on Nissan are mounted in the front bumper area, directly exposed to road spray and stone chips. A corroded turn signal connector causes the BCM to log a lighting fault and may trigger a fast-flash condition (hyper-flash) as the BCM detects an open circuit on the affected side.
| Part Number | Type |
|---|---|
| 7123-8520-40 | Male (plug side) — motor / lamp side |
| 7222-8520-40 | Female (socket side) — harness side |
| PB015-02850 | Alternate cross-reference |
| 7222-8521-80 | Alternate variant |
| 7123-8521-80 | Alternate variant |
| Pin | Function (Wiper Motor) | Function (Turn Signal) | Failure Symptom if Corroded |
|---|---|---|---|
| 1 | +12V switched power to wiper motor | +12V switched power to turn signal bulb/LED | Wiper not operating / turn signal not illuminating |
| 2 | Ground / wiper motor earth return | Ground / chassis earth | Wiper stops mid-sweep / turn signal flickering or hyper-flash |
| Attribute | Detail |
|---|---|
| Pin Count | 2-Pin |
| OEM Part Numbers | 7123-8520-40 / 7222-8520-40 / PB015-02850 |
| Manufacturer | Sumitomo Electric |
| Housing Material | Nylon (PA66), waterproof sealed |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Windscreen wiper motor harness, front turn signal harness |
| Compatible Brands | Nissan, Infiniti |
Q: My Nissan wipers stop mid-sweep and won’t park — is it the connector?
A: Wipers stopping mid-sweep on Nissan are frequently caused by a corroded ground pin (Pin 2) in the 2-pin wiper motor connector rather than a failed wiper motor or park switch. The motor loses its earth return and stalls. Inspect the connector before replacing the wiper motor assembly.
Q: My Nissan front turn signal is hyper-flashing — is it the connector?
A: Hyper-flash (fast flashing) on one side indicates the BCM has detected an open circuit on that turn signal. A corroded 2-pin connector causes the same open-circuit signal as a blown bulb. Inspect the connector before replacing the bulb or BCM.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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2 Pin Connectors
