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This kit includes a factory air conditioning harness for use in combination with a 510540 Classic Update. Includes connectors, terminals, grommets and complete installation instructions. This add-on kit is not for use with an original wiring harness and should only be used to complete a Classic Update installation. For models with a rear defogger.
| Make | Model | Years |
| Pontiac | GTO | 1970 |
| Pontiac | LeMans | 1970 |
| Pontiac | Tempest | 1970 |
| Proposition 65 | WARNING: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. |