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Sales Department:Tuesday - 7.00AM to 8.00PM ESTOnline
Customer Support:Tuesday - 8.00AM to 5.00PM ESTOffline
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Buick ECM | PCM | ECU

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  3. 12587410 | 2007 Buick LaCrosse 3.6L PCM Engine Computer ECM ECU Programmed Plug&Play | 12581144
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Willams - by , Wednesday
    4.0/ 5stars 1star
    Great product. A pleasure to do business with.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12587410
    $503.99
  4. 12600797 | 2007 Buick LaCrosse 3.6L PCM Engine Computer ECM ECU Programmed Plug&Play | 12592124
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Harry - by , Wednesday
    4.0/ 5stars 1star
    Thank you for an easy and pleasant transaction. Product arrived as expected.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12600797
    $503.99
  5. 12581144 | 2007 Buick LaCrosse 3.6L PCM Engine Computer ECM ECU Programmed Plug&Play | 12581144
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Harry - by , Wednesday
    4.0/ 5stars 1star
    The computer works perfectly. We are so happy!!Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12581144
    $503.99
  6. 12587235 | 2007 Buick LaCrosse 3.6L PCM Engine Computer ECM ECU Programmed Plug&Play | 12581144
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Juan - by , Wednesday
    4.0/ 5stars 1star
    it's good quality. fast shipping my car sounds great now.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12587235
    $503.99
  8. 12593780 | 2007 Buick LaCrosse 3.6L Engine Computer PCM ECM ECU Programmed Plug&Play | 12592124
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Ari - by , Wednesday
    4.0/ 5stars 1star
    Thank you for an easy and pleasant transaction. Product arrived as expected.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12593780
    $503.99
  12. 12596577 | 2007 Buick LaCrosse 3.6L Engine Computer PCM ECM ECU Programmed Plug&Play | 12592124
    $466.00
    Rated 4.0/5 based on 2025 customer reviews
    Willams - by , Wednesday
    4.0/ 5stars 1star
    PCM ARRIVED SAME AS FACTORY PART NUMBER AND IT WAS ALREADY PROGRAMMED TO VEHICLE. EASY PROCESS. GOOD COMMUNICATION. NO ISSUES.Flagship One, Inc
    Buickhttps://www.fs1inc.com/media/product/image/gm/gm_type_55/gm_pcm_ecm_type_55_1.jpg12596577
    $503.99
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All Buick PCM (Powertrain Control Module), Buick ECM (Engine Control Module) & Buick ECU (Electronic Control Unit) from Flagship One, Inc. are precisely programmed and flashed to meet your vehicle's specific requirements.

Our Buick PCM, Buick ECM and Buick ECU units that are labeled plug & play will not require any additional programming.