Semi-Truck Air System Parts

Your truck's air system supplies and controls the compressed air that powers the brakes, suspension, and air-operated accessories on both the tractor and trailer. A leak, a saturated dryer, or a failed valve anywhere in the system drops your reserve pressure and can put the truck out of service. Van Horn Truck Parts carries the full air system — air valves, tanks, dryers, gladhands, hoses, and fittings — cross-referenced to Bendix, Haldex, Sealco, and Automann part numbers.

Browse by sub-category to find the exact component: air valves that control braking, tanks that store your reserve, dryers that pull out moisture, gladhands that connect the trailer, and the hoses and fittings that tie it together. Match each part by the number on the old component or by your make and model, and confirm thread and port sizes before ordering.

Mechanic & Fitment Specs:

• Sub-categories: Air valves, tanks, dryers, gladhands, hoses, fittings, tubing
• Match by: Old part number, make/model, thread and port size
• Cross-references: Bendix, Haldex, Sealco, Automann
• Buying tip: Fix leaks at the fitting first; replace saturated dryer cartridges on schedule