North America About usInvestorsMediaSuppliersWork at Haldex Login Register Products Technical Support Distributors News and Events Contacts Home ProductsBrake AdjustersAA1 PRODUCTS Product Catalog Product Literature Air Disc Brakes Brake Adjusters AA1 S-ABA Actuators ABS Air Suspension Air Treatment Friction Valves Electrical Remanufacturing Product Training Warranty Information & Forms UPC and VMRS Codes AA1 From original idea to original equipment As the very first clearance-sensing brake adjuster, the Haldex AA1 offers customers a higher level of technical efficiency, safety and reliability. It is designed to adjust exactly and gradually when it matters, maintaining a constant clearance between lining and drum, whatever the conditions or driver's braking style. The adjustment mechanism is integrated into a robust, high-quality housing that protects it from knocks, dirt and moisture and assures a long service life even in hostile driving environments. Key benefits: Constantly maintains brake lining -to-drum clearance, reducing stopping distances and increasing driver's confidence under all conditions. Heat-treated housing extends life and minimizes internal wear. Heat-treated, high strength, high alloy steel internal gears withstand wear. Reliable o-ring seals improve protection from moisture, dirt and road salt. Verifies proper installation at a glance through its built-in visual indicator, eliminating the cumbersome templates needed to check other ABAs. What sets us apart: Global market leader with over 75 Million Brake adjuster sold since the introduction in the late 60´s. Better durability and reliability, which provides a longer service life. Reliable ring seal prevents contamination from moisture, dirt and road salt. Adjusts during brake release when forces on the adjuster are at their lowest which prolongs life. Clearance-sensing design prevents excessive brake wear and failed roadside inspection, which reduces operating and downtime costs. Simplifies adjustment during installation and brake lining replacement with an easily accessible adjustment hex - requiring no locking pawls to remove or disengage The market leading, well established, AA1 automatic brake adjuster. Product catalog & cross-references New, updated catalog with the ability for existing customers to place orders online. Click here Quick Links Haldex Corporate website Product catalog Distributor search Contact Haldex Brake Products Corp. 10930 N Pomona Avenue Kansas City, MO 64153 United States of America Phone: 1-816-891-2470 Fax: 1-816-891-9447 Follow us © Haldex 2015 Terms of use Cookies