Mercury - Motor Bag Avator Transport & Storage 8M0211715. Overview. This motor bag gives the Avator short-shaft motors an easier, safer way to travel when they're off the boat. The wheels and straps make moving the motor feel more manageable, especially when you're crossing a parking lot or rolling down a dock with a handful of other gear. The padding helps keep the housing from getting beat up along the way, and the bag keeps everything together so you're not wrestling with loose parts.. Key Fe