Haldex Valves
Haldex 4725001230X Remanufactured ABS Modulator Valve for Commercial Vehicles
Haldex KN34123 Tractor Protection Valve, Two-Line Manifold Style, PTC Fittings
Haldex: A Century of Heavy-Duty Brake Innovation
Haldex has been engineering safer, more reliable braking solutions for the commercial vehicle industry since its founding in Landskrona, Sweden, in 1887. Founded in Landskrona in 1887, Haldex has since been notable for innovative research and development work that has created groundbreaking technological vehicle solutions. Today, that same spirit of innovation drives a product portfolio trusted by fleet operators, OEM manufacturers, and service technicians around the world.
Haldex is a leading manufacturer of reliable and innovative brake systems and air suspension solutions that enhance the safety, dynamics, and durability of heavy vehicles. Over 130 years of innovation have provided Haldex with competitive expertise in brake and air suspension systems for commercial vehicles, making it a long-term partner to manufacturers of heavy trucks, trailers, and buses, as well as to axle manufacturers.
Two Core Product Areas
Haldex's products are grouped into two product areas: Foundation Brake and Air Controls. The Foundation Brake product line includes brake products for wheel ends such as disc brakes, brake adjusters for drum brakes, and actuators. Air Controls comprises products that improve the safety and driving dynamics of the brake system, such as compressed air dryers, valves, ABS, and EBS.
At the heart of the Foundation Brake lineup are Air Brake Chambers, the pneumatic actuators that convert air pressure into the mechanical force needed to stop a loaded truck or trailer. Actuators and brake chambers are available for both drum brakes and disc brakes, and Haldex offers several versions, both with and without parking brakes. The iconic Air Brake Auto Slack Adjusters from Haldex carry an equally storied legacy — since launching the first automatic brake adjuster in 1968, the company has led advancements in this field, including the introduction of the S-ABA self-setting brake adjuster in 1997. Over the years, Haldex has produced more than 100 million brake adjusters, making their designs the global standard.
Air Controls: Valves That Keep Systems Safe
The Air Controls side of the Haldex catalog is equally comprehensive, covering the valves and control components that regulate, protect, and distribute compressed air throughout a vehicle's braking system. Air Brake Control Valves manage airflow and pressure delivery to each axle, while Air Brake Pressure Protection Valves safeguard the primary brake circuit from pressure loss caused by a secondary system failure. For tractor-trailer combinations, Air Brake Towing Vehicle Protection Valves provide a critical safety net, automatically isolating the towing vehicle's air supply if trailer line pressure drops unexpectedly.
A Global Standard, Built to Last
Haldex is the number one player in automatic brake adjusters in Europe and America, and in air suspension for trailers in Europe and for buses in Asia. Haldex operates sales, R&D, and manufacturing all over the world, with offices in 19 countries and production located in Brazil, China, Hungary, India, Mexico, the United States, and Sweden. That global footprint ensures consistent quality and part availability whether you're maintaining a regional fleet or specifying components for a new build. Haldex slack adjusters boast the best warranty in the business, clocking in at 6 years or 1 million miles, with less than a 0.5% warranty rate.
For anyone maintaining or rebuilding an air brake system on a commercial truck, trailer, or bus, Haldex parts represent a proven, industry-leading choice backed by more than a century of dedicated braking expertise.