Main Microprocessor Module 12-00664-55 12-00664-54 for Carrier Transicold Vector 1350 Range Condition: New Note: This 100% part is non-returnable and non-exchangeable. Please verify the correct part number before purchasing, instead of solely relying on the model.Replacement Part Number:12-00664-04, 120066404, 12-00664-05, 120066405, 12-00664-54, 120066454, 12-00664-54, 120066454, 12-00664-55, 120066455, 12-00664-03, 120066403 Applications:Fit For Carrier Transicold: Vector 1350 Range