A four-tire inflation system does exactly what the name says: it inflates all four tires at once, from one compressor, through four hoses.

The time saving is not the whole story — the equalising is. Because all four are connected, they come up together and finish at the same pressure, rather than you working around the vehicle one wheel at a time and ending up with four slightly different numbers.

This is the engine-mounted version, supplied with the mounting box, fittings, hoses and a storage bag — a complete installation rather than parts to assemble.

Why this matters: dropping tire pressure on the trail lengthens the contact patch, which gives you traction in sand, rock and mud that no amount of throttle will. The catch is the other half — you have to put the air back before you touch pavement. Low pressure at highway speed builds heat, and heat is what destroys tires and unseats beads.

Airing up four tires one at a time is the chore that stops people airing down in the first place. Remove the chore and you get the traction benefit every trip instead of only when you feel energetic.

Fitment: engine-bay mounting is vehicle-specific. Tell us your year, make and model and we will confirm this is the right version before you order.