Frequently Asked Questions About International WorkStar Air Springs & Level Valves

What years and models of International WorkStar are these air springs compatible with?

Our air springs and level valves are designed to fit International WorkStar models from 2008 through 2017. This includes all WorkStar configurations such as the 7300, 7400, 7500, and 7600 series. Always verify your specific VIN and suspension type before ordering, as some specialty configurations may require different components. Check your existing air spring part numbers or contact our support team with your VIN for exact fitment confirmation.

How difficult is it to install these air springs and level valves myself?

Installation typically takes 2-4 hours per axle for someone with moderate mechanical experience. You'll need basic hand tools, jack stands, and ideally an air compressor for testing. The most challenging aspects are safely supporting the vehicle weight during spring removal and ensuring proper air line routing. Level valve adjustment requires patience to achieve correct ride height. Many customers successfully complete DIY installation, but we recommend professional installation if you're uncomfortable working with suspension components or lack proper lifting equipment.

What's the difference between OEM and aftermarket air springs for my WorkStar?

Aftermarket air springs we carry meet or exceed OEM specifications while typically costing 30-50% less. They use the same rubber compounds and reinforced construction as original equipment. The main differences are brand markings and sometimes minor mounting bracket variations that don't affect performance. Our aftermarket options carry warranties ranging from 1-3 years depending on manufacturer. Some customers prefer OEM for fleet consistency, while others choose aftermarket for the cost savings without sacrificing quality or longevity.

How do I know if my level valve needs replacement along with the air springs?

Common signs of level valve failure include uneven ride height side-to-side, slow air leak when parked, constant air compressor cycling, or the truck not maintaining proper height under load. If your WorkStar leans, squats excessively when loaded, or you hear air escaping near the valve linkage, the level valve likely needs replacement. We recommend replacing level valves whenever you install new air springs if they're over 5 years old, as preventive maintenance can avoid roadside failures.

What air spring style should I choose - rolling lobe or convoluted bellows?

Most WorkStar models use convoluted (bellows-style) air springs, which provide excellent load capacity and durability for vocational trucks. Rolling lobe designs are typically found on highway tractors and offer a smoother ride but less lateral stability. Your existing setup determines compatibility - you cannot interchange styles without extensive modification. Check your current air spring design or look for part numbers starting with W01 for convoluted or 1R for rolling lobe types. When in doubt, convoluted springs are the standard WorkStar choice for construction and service applications.