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          GM Genuine Parts 12678511 | Engine Control Module

          GM Genuine Parts Logo
          Part Number
          12678511
          Engine Control Module/ECU/ECM/PCM ACDelco GM Original Equipment 12678511

          Fits: 08-09 Buick Allure, 08 Buick Enclave, 08-09 Buick LaCrosse, 08 Buick Lucerne, 08 Cadillac DTS, 08 Cadillac SRX, 08 Cadillac STS, 08 Cadillac XLR, 08 Chevrolet Colorado, 08-10 Chevrolet Malibu, 08-09 Chevrolet Trailblazer, 08-09 Chevrolet Uplander, 08 GMC Acadia, 08 GMC Canyon, 08-09 GMC Envoy, 08 Hummer H3, 08 Isuzu Ascender, 08 Isuzu i-290, 08 Isuzu i-370, 08-09 Pontiac G6, 08 Pontiac Grand Prix, 08-09 Pontiac Montana, 08-09 Saturn Aura, 08 Saturn Outlook, 08-10 Saturn Vue

          Special Price $255.26 Regular Price $277.46
          ---------OR---------
          In stock
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          Estimated Ship Date: 1 Business Day or Less
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          ACDelco Limited Warranty (762.28 kB)


          APPLICATIONS:


          • 2008-2008 Isuzu i-370
          • 2008-2008 Saturn Outlook
            • CODE YRHH,YRJU,YRFM
          • 2008-2009 Pontiac Montana
          • 2009-2009 Chevrolet Trailblazer
          • 2008-2009 Saturn Aura
          • 2008-2008 Buick Enclave
            • CODE YRHH,YRJU,YRFM
          • 2008-2008 Chevrolet Colorado
          • 2008-2008 Pontiac Grand Prix
          • 2009-2009 GMC Envoy
          • 2008-2008 Chevrolet Trailblazer
            • CODE YRHB
          • 2008-2008 GMC Envoy
            • CODE YRHB
          • 2008-2008 Cadillac STS
          • 2008-2008 Cadillac SRX
          • 2008-2010 Chevrolet Malibu
          • 2008-2008 Buick Lucerne
          • 2009-2009 Pontiac Montana
            • TIER 2 FED EMIS(NT7), CALIFORNIA LEV2 EMIS(NU1)
          • 2008-2009 Pontiac G6
          • 2008-2008 Isuzu i-290
          • 2008-2010 Saturn Vue
          • 2008-2008 Hummer H3
          • 2008-2008 GMC Acadia
            • CODE YRHH,YRJU,YRFM
          • 2008-2009 Buick Allure
          • 2008-2008 GMC Canyon
          • 2008-2009 Buick LaCrosse
          • 2008-2009 Chevrolet Uplander
          • 2009-2009 Chevrolet Uplander
            • TIER 2 FED EMIS(NT7), CALIFORNIA LEV2 EMIS(NU1)
          • 2008-2008 Isuzu Ascender
            • CODE YRHB
          • 2008-2008 Cadillac XLR
          • 2008-2008 Cadillac DTS
          Engine Code P0135: O2 Heater Circuit Malfunction (How to Fix It)

          Engine code P0135 indicates a problem with the oxygen sensor heater circuit. Learn more about the causes, symptoms, and how to fix code P0135, including Honda and Chevy specific information.

          September 24, 2023
          Customer Questions
          Does AC Delco make Ford parts?
          No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
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          Can I use AC Delco parts to replace OEM parts?
          Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
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          What AC Delco oil filter do I need?
          AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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          ACDelco Limited Warranty (762.28 kB)

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