The compressor is weatherproof and can be mounted just about anywhere. We wanted to mount it in a dry location with plenty of ventilation and easy access. The guys mounted it on the spare battery rack in the driver-side of the engine bay. A 5⁄16-inch DOT nylon tubing is also run to the air tank. We used a quick disconnect with the air line so we could use the compressor for airing up tires and camping mattresses.