Prepare your semi to be Ready for the Road Ahead™, with the Stemco 6.31" Voyager® Wheel Seal for 38,000 and 40,000 lb Tandem Axles that offers superior axle protection and lubricant leakage prevention. By snugly fitting inside the hub assembly, this replacement wheel seal locks in lubricants while preventing contaminants from entering the wheel itself. Engineered with weather and heat-resistant rubber for optimal performance and durability in harsh conditions. FleetPride is your First Click in Heavy Duty®.