06 Chevrolet GMC 2500HD DURAMAX 6.6 LLY LBZ ECM ECU ENGINE COMPUTER 12604137

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Here we have a good used engine computer removed from a 2006 GMC 3500hd with the LBZ looking LLY engine. This should will fit 06-07 trucks with the same part number. No damage, ready to use. Make sure this part number will work for your truck. May require programming.