Prepare your semi truck to be Ready for the Road Ahead , with the Haldex T24 Long Stroke Service Chamber Brake that delivers enhanced brake performance. With a long stroke, this replacement component is able to improve brake force, safety margins, and heat dissipation. Constructed with a world-class rubber compound diaphragm that stays flexible at temperatures as low as -40 °F. FleetPride is your First Click in Heavy Duty .