Toyota / Hyundai 2-Pin Ignition Coil Wire Harness Connector – OEM 7283-7021-10 / 90980-10901 / 90980-10900
Direct OEM-specification replacement for the Sumitomo 2-pin wire harness connector used on ignition coils across Toyota and Hyundai platforms. Cross-references Sumitomo / Toyota OEM part numbers 7283-7021-10 (female housing), 7282-7021-10 (male housing), 90980-10901, and 90980-10900. Grey nylon housing — the standard 2-pin ignition coil connector on Toyota’s 1NZ, 2NZ, 1ZZ, 2ZZ, 3ZZ, and related 4-cylinder engine platforms, as well as Hyundai applications using the same Sumitomo connector family.
The 2-pin ignition coil connector on Toyota and Hyundai vehicles is located on the valve cover in a high-heat, high-vibration zone. The connector is exposed to heat from the engine, oil vapour, and vibration from the coil-on-plug ignition system. A failed connector causes a cylinder misfire (P0300–P0304) and rough running. On Toyota 1NZ and 2ZZ engines, the ignition coil connector is also frequently damaged during spark plug replacement if the connector is pulled at an angle rather than straight out.
| OEM Number | Type | Application |
|---|---|---|
| 7283-7021-10 | Female (socket) housing | Sumitomo 2-pin ignition coil connector — harness side |
| 7282-7021-10 | Male (plug) housing | Sumitomo 2-pin ignition coil connector — coil side |
| 90980-10901 | Female housing | Toyota OEM cross-reference (primary) |
| 90980-10900 | Male housing | Toyota OEM cross-reference (alternate) |
| Pin | Function | Failure Symptom if Open |
|---|---|---|
| 1 | Ignition trigger signal from ECM | No spark, cylinder misfire P0300–P0304 |
| 2 | Coil power supply / ground | Coil inoperative |
| Attribute | Detail |
|---|---|
| Pin Count | 2-Pin |
| Housing Material | Nylon, grey |
| OEM Part Numbers | 7283-7021-10 / 7282-7021-10 / 90980-10901 / 90980-10900 |
| Applications | Ignition coil (coil-on-plug) |
| Compatible Models | Toyota Corolla / Yaris / Vios / Wish / Auris (1NZ / 2NZ / 1ZZ / 2ZZ); Hyundai (Sumitomo platform) |
| Terminal Included | Yes |
Q: My Toyota Corolla has a P0302 misfire after a spark plug change — could it be the coil connector?
A: Yes. The 2-pin ignition coil connector is the most common failure point during spark plug replacement on Toyota 1NZ and 2ZZ engines. The connector must be pulled straight out — pulling at an angle bends the terminal. Inspect the connector before replacing the ignition coil.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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2 Pin Connectors
