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Diesel Laptops CAT in GMC & Chevrolet OBDII Cable for USB Link

Diesel Laptops CAT in GMC & Chevrolet OBDII Cable for USB Link

If you have a CAT engine in a GMC/Chevy chassis, these vehicles are unique and run off an OBDII port that is different than all the other OBDII ports. You will need this cable in order to get your Nexiq USB Link working properly with that vehicle.