

🚙 Unlock your H3’s full potential with a custom-fit ECM upgrade!
This 2006 Hummer H3 Engine Control Module (ECM) is programmed specifically to your vehicle’s VIN, ensuring perfect compatibility and performance. Designed for easy plug-and-play installation, it comes with detailed instructions for any necessary anti-theft and crankshaft relearn procedures. Manufactured by Flashmasters, it operates on 12 volts and ships same day if ordered by 3 PM EST, minimizing your vehicle’s downtime.
| Manufacturer | Flashmasters |
| Brand | Flashmasters |
| Manufacturer Part Number | 12597521 |
| Special Features | Engine Bay,Front, Plug and Play, Instructions Included, Programmed to Your VIN,Easy Installation |
| Voltage | 12 Volts |
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