If you have been reading4WORfor long you have likely heard us extol the virtues of airing down your tires on the trail for increased traction and an improved ride. Airing down can be as easy as ...

Viair’s portable air compressor offers a back-to-basics pump with an analogue gauge and power that comes directly from the vehicle’s battery via clamps. It’s fairly compact, weighing only 4.5 pounds ...

Editor's Note Jan. 26, 2026: We are a preparing an update to this roundup with a couple new tested inflators. In the meantime, we combed through our current listings to make sure they are still in ...

The best portable tire inflators on the market, plus helpful tips on picking the right one for your needs.