You are looking at a used ecm pcm computer from a 1997 Dodge Ram 1500. This computer should fit 1997 Dodge Ram 1500 2500 trucks with 5.2 V-8 GAS engine. It will not work in any other trucks. THIS WILL NOT WORK FOR DIESEL TRUCKS. Please match part numbers to yours. This will only work in trucks with the same part number. This part number is P56040387AA, see pictures. This was removed from a running and driving truck. It may need to be reprogrammed to work in your truck. PLEASE check with your mechanic to make sure before buying. All units worked when removed and all of the clips and pins are there and in good shape. Condition is Used. USPS Priority boxed shipping will be free for lower 48 states only. No shipping to Alaska, Hawaii or Puerto Rico. Thanks for looking