Prevents dirt, debris and water from getting in to your axle through the stock axle housing breather.  Expands and contracts to accommodate increase or decrease in housing pressure.  Kit includes one housing fitting, clamp and bellows (as shown).  Easy installation takes just a few minutes.  No hoses to route.  Fits all Toyota Pickup/4 Runner solid axle housings (front or rear).

Note: This product is not compatible with the Trail-Gear Rear Axle 4 link Upper Link Mount kit.