01-04 Chevrolet GMC 2500HD DURAMAX 6.6 LB7 ECM ECU ENGINE COMPUTER 12210729

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Here we have a good used engine computer removed from a 2003 GMC 3500hd. This will fit all 01-04 trucks with the diesel LB7 engine. No damage, ready to use but could require programming to your truck. Make sure this part number will work for your truck.