Frequently Asked Questions About Mack CX Truck Air Springs & Level Valves

Will these air springs fit my specific Mack CX model year?

Our air springs are designed to fit Mack CX models from 2008-2015. However, there can be variations based on your truck's suspension configuration (Mack Air Ride vs. Hendrickson). Always verify your OEM part number before ordering. You can find this number on your existing air spring or in your truck's parts manual. If you're unsure, contact us with your VIN and we'll help confirm compatibility.

How difficult is it to replace air springs and level valves on a Mack CX?

Air spring replacement typically takes 1-2 hours per side for someone with basic mechanical skills. You'll need standard hand tools, jack stands, and ideally an air compressor to test the system. Level valve replacement is more complex and may require 2-3 hours, as it involves precise adjustment for proper ride height. Many customers choose to replace both components together since labor overlap makes it cost-effective. Always follow proper safety procedures and consider professional installation if you're not comfortable working with air suspension systems.

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

OEM air springs are manufactured to Mack's original specifications and typically last 5-7 years under normal conditions. Quality aftermarket options from brands like Firestone and ContiTech often match OEM performance at 30-40% less cost. The main differences are warranty length (OEM usually offers longer coverage) and minor design variations. Both options use similar rubber compounds and steel components. We recommend aftermarket for cost-conscious buyers and OEM for those wanting exact factory specifications.

How do I know if my level valve needs replacement versus just adjustment?

Signs your level valve needs replacement include: air constantly bleeding from the exhaust port, inability to maintain consistent ride height, or visible damage to the valve body or linkage. If your truck leans to one side or takes excessive time to level after loading, try adjustment first. The valve arm should be parallel to the ground at proper ride height. If adjustment doesn't resolve the issue or the valve shows signs of internal wear (air leaks, sticky operation), replacement is necessary.

Do I need to replace both air springs at the same time?

While not mandatory, replacing air springs in pairs is strongly recommended. When one air spring fails, the other has likely experienced similar wear and stress. Mismatched air springs can cause uneven ride height, premature wear on the new spring, and potential handling issues. Most customers find that replacing both saves money on labor costs and prevents return trips for the second replacement. This is especially important for drive axle applications where balanced performance is critical.