Compressed air is an essential tool to have in your overland kit. Either on-board or portable, 4x4 air compressors provide the convenience for airing up tires when you get back to the pavement. On-board compressors are perfect for operating your air lockers or basic air tools. Plumb air lines to your front and rear bumpers for quick access on the trail. Portable 4x4 air compressors provide mobility bringing the air to where it's needed, helping out your buddy that forgot his. Must have accessories include a good tire gauge, tire deflator, and a tire repair kit.