Toyota / Lexus 7-Pin Wire Harness Connector – OEM 4A1670-0000 / 90980-12D92 / 1310-6736 / 7189-8974
Direct OEM-specification replacement for the Sumitomo / TE Connectivity 7-pin waterproof wire harness connector used across Toyota and Lexus powertrain and body harness applications. Cross-references OEM part numbers 4A1670-0000, 90980-12D92, 1310-6736, 7189-8974, and 1121500707MA001. Black nylon and rubber housing with waterproof sealing — designed for underbonnet and chassis harness applications where moisture and vibration resistance are critical.
The 7-pin multi-function harness connector on Toyota and Lexus vehicles is used across a range of powertrain and body control applications — including transmission control harnesses, body control module connectors, and chassis wiring junctions. These connectors are located in high-exposure zones and are subject to heat cycling, vibration fatigue, and moisture ingress over time. A failed 7-pin harness connector can cause intermittent or permanent loss of multiple circuits simultaneously, producing complex fault patterns that are difficult to diagnose without first inspecting the connector.
| OEM Number | Source |
|---|---|
| 4A1670-0000 | Sumitomo primary part number |
| 90980-12D92 | Toyota OEM equivalent |
| 1310-6736 | TE Connectivity alternate |
| 7189-8974 | Alternate cross-reference |
| 1121500707MA001 | Chinese OEM equivalent |
| Attribute | Detail |
|---|---|
| Pin Count | 7-Pin |
| Housing Material | Nylon and rubber (waterproof) |
| Housing Colour | Black |
| Sealing | Waterproof |
| OEM Part Numbers | 4A1670-0000 / 90980-12D92 / 1310-6736 / 7189-8974 / 1121500707MA001 |
| Applications | Powertrain harness, body control module, chassis wiring junction |
| Compatible Brands | Toyota, Lexus |
| Terminal Included | Yes |
Q: How do I confirm this is the correct connector for my Toyota?
A: Cross-reference the OEM part number printed on your existing connector housing against the numbers listed above: 4A1670-0000, 90980-12D92, 1310-6736, or 7189-8974. If you cannot read the part number, count the pin cavities and measure the terminal pitch to confirm a 7-pin configuration.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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