The AEM main harness is a direct replacement wiring loom for the X-Series 30-0302 fluid temperature gauge, with a long length to suit most applications and color-coded wiring with quick-connect connectors for straightforward installation.
| Type | Main wiring harness |
| Fitment | X-Series fluid temperature gauge 30-0302 |
| Features | Color-coded loom, quick-connect connectors |
| Part Number | 30-3443 |
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