Air Brake Automatic Slack Adjuster

The Automann 138.1030 Air Brake Automatic Slack Adjuster is a premium replacement part designed for the demanding requirements of modern heavy-duty trucks and trailers. This automatic slack adjuster continuously maintains the correct clearance between the brake lining and drum, reducing the need for manual adjustments and minimizing brake wear. Its robust construction ensures durability and dependable performance even in harsh operating environments, making it an ideal choice for fleets aiming to maximize uptime and safety. The 138.1030 model features a 6-inch arm length, 1-1/2 inch spline diameter, and 10 splines, ensuring compatibility with a broad range of commercial vehicles. Backed by Automann’s reputation for quality, this slack adjuster meets or exceeds OEM standards and is cross-referenced with multiple original and aftermarket part numbers for easy replacement. Wofford Truck Parts provides expert support and fast delivery, making it simple to keep your vehicles on the road with confidence.