1T15LP3 CB ST1/2NPT PST BRK

Genuine Firestone Airide replacement air spring W01-358-9587 is designed to enhance performance and ride comfort for heavy-duty truck and trailer suspensions. It replaces Holland-Neway 90557248. Firestone bellows number is 1T15AA-3. Airide springs are designed to reduce costs and increase profits by lasting at least twice, and as much as four times longer than steel springs. They require little to no maintenance, increase the life of tires and brake linings, and substantially reduce breakage and maintenance of other vehicle components. They also allow for perfect load equalization between axles, provide a smoother ride for payload, and improve driver comfort and safety. All air spring assemblies are 100% pressure tested before leaving Firestone's factory and come with a 2 year / 200,000 mile warranty. Firestone is the original designer of composite pistons, and their rubber compounds have a superior 'flex' range through temperatures of -65 F to 135 F.