Outfit your semi to be Ready for the Road Ahead™ with enhanced axle protection and lubricant leakage prevention, with the National 380003A Gold 38 Series Wheel Seal for 38,000 lb -48,000 lb Drive Axles. By snugly fitting inside the hub assembly, this replacement wheel seal locks in lubricants while preventing contaminants from entering the wheel itself. Created with heat and weather-resistant rubber for optimal performance and durability in severe climates. FleetPride is your First Click in Heavy Duty®.