Breakdowns do happen, and when they happen to the biggest semis you can expect to see the Kenworth W-900 getting it back to the shop. Although called “Conventional”, this truck is anything but. It has been in production for over fifty years and comes equipped with a powerful diesel engine ranging in size from 9 liters to up to 16 liters for hauling the truly massive movers. Kit features a detailed, turbocharged diesel engine, telescoping wrecker crane, opening front engine cover, and tons of detail.