Fits for John Deere Excavator: 120D, 240DLC, 200DLC, 225DLC, 135D, 450DLC, 650DLC, 75D, 850DLC, 350DLC, 270DLC, 85D, 160DLC. The positive and negative terminals of the CAN bus must never be reversed. A reliable ground connection is essential; a loose connection can cause various intermittent faults. Aaha-parts specializes in electrical parts which fit various heavy equipment. Electrical parts are used to drive the mechanical components to work properly. They are the drive control part of the heavy equipment. Aaha-parts is a professional store deeply rooted in off-highway vehicle parts. Providing premium-quality, well-fitted components to keep your equipment running at its best.