The PRT AUTO PARTS 173939 Shock Absorber is engineered to enhance the performance and longevity of heavy-duty vehicles. Designed with a 14.09" extended length and a 4.80" stroke, this gas-charged shock absorber utilizes a twin-tube design with vehicle-specific valving to provide optimal damping. The aluminum alloy piston, combined with a micro-smooth chrome-plated piston rod, ensures durability and smooth operation. Filled with high-performance all-weather hydraulic oil, it maintains consistent performance across various climates. The metal dust shield protects internal components from contaminants, while the loop lower mount and bolt upper mount facilitate secure installation. With a 1.77" body diameter and a sleek black finish, the 173939 is a reliable choice for maintaining vehicle stability and ride comfort.