Semi-tractor trailer parts and accessories, namely, electric liquid tanker pumps and electric pump kits for tankers comprised of electric motors and liquid pumps; after-market parts and components for tractor trailers, namely, electric liquid tanker pumps and electric pump kits for tankers comprised of electric motors and liquid pumps; after-market automotive parts and accessories, namely, transport refrigeration kits comprised of electric motors, controllers, and battery banks for diesel trucks