With the assurance of Expertise Built In™, the OTR 1.5” Cam / 28 Spline / 5.5” Automatic Slack Adjuster is made with high-performing, high-tolerance gears, splines, clutch, and surface mechanisms. This Meritor-style automatic slack adjuster has a low-maintenance design that is easy to install, maintains a uniform distance between the brake drum and lining, and maximizes the vehicle’s service life. This lightweight, reliable automatic slack adjuster enhances brake performance and shortens stopping distance. Experience a trouble-free solution that thrives in all operating conditions, including weather, sub-zero temperatures or desert heat. In addition, OTR is committed to thorough, in-house designed testing procedures that ensure the quality of each automatic slack adjuster. As a result, this heavy duty slack adjuster combines both high-quality and excellent value in order for your semi truck to meet the demands of the road. FleetPride is your First Click in Heavy Duty®.