The crossword solution for the term SEMI PARTS is CABS, which stands for CABS or cabins. CABS are the enclosed area of a semi-truck where the driver sits and operates the vehicle. They are typically made of metal and have windows to allow the driver to see out. The cab also contains the controls for the truck, such as the steering wheel, pedals, and other necessary equipment. CABS are an important part of a semi-truck, as they provide the driver with a safe and comfortable place to operate the vehicle.