Hyundai / Kia 2-Pin Smart Key & BCM Connector – OEM MG645638-5 / 95420-D3900
Direct OEM-specification replacement for the Hyundai and Kia 2-pin connector used in smart key antenna and BCM (Body Control Module) harnesses. Cross-references OEM part numbers MG645638-5, MG655641-5, 95420-D3900, and K95420D9300. Available bare or with 15cm pre-wired leads.
| OEM Number | Brand / Format |
|---|---|
| MG645638-5 | Hyundai connector housing |
| MG655641-5 | Kia connector housing (alternate) |
| 95420-D3900 | Hyundai/Kia smart key antenna assembly |
| K95420D9300 | Kia alternate part number |
| Pin | Function | Failure Symptom if Corroded |
|---|---|---|
| 1 | Power supply or signal to smart key antenna / BCM | Smart key not detected, push-button start not working |
| 2 | Ground / signal return | Intermittent smart key detection, B-code BCM fault |
| Attribute | Detail |
|---|---|
| Pin Count | 2-Pin |
| OEM Part Numbers | MG645638-5 / MG655641-5 / 95420-D3900 |
| Housing Material | Nylon (PA66) |
| Wire Option | Bare connector / 15cm pre-wired leads |
| Application | Smart key antenna harness, BCM connector |
| Compatible Brands | Hyundai, Kia |
Q: My Hyundai smart key is not detected intermittently — is it the connector?
A: Intermittent smart key detection on Hyundai/Kia vehicles is frequently caused by a loose or corroded 2-pin connector at the smart key antenna rather than a failed key fob or BCM. Inspect the connector before replacing the antenna or reprogramming the key.
Q: Are terminals included?
A: Yes, terminals are included with all variants.
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2 Pin Connectors
