The Monroe Shocks & Struts Shock Absorber is designed to provide superior durability and force absorption for semi-truck suspension parts. It minimizes wear and tear and protects against vibration damage. The 10-stage valve reacts to a wide range of driving conditions in applications, offering more efficient and consistent control. It is a nitrogen gas-charged to maintain tire to road contact by reducing aeration. The PTFE coated bearing reduces friction during operation between the rod and rod guide, improving durability. FleetPride is your First Click in Heavy Duty®.