Built with performance and longevity in mind, the Eaton DSP40P Tandem Drive Axle comes equipped with an integrated oil pump that keeps critical components properly lubricated, even under the heaviest loads. By improving oil circulation, the pump helps reduce heat, cut down on wear, and extend the life of your axle all while keeping maintenance simple and downtime low. Perfect for linehaul, vocational, and mixed-service trucks, the DSP40P delivers the durability and reliability fleets and owner-operators count on every day to keep their business moving forward.