Automann 135.S2835A Automatic Slack Adjuster 1-1/2-28 Spline 5-1/2 Inch Arm

The Automann 135.S2835A is a Haldex-type S-ABA (Self-Setting Automatic Brake Adjuster) designed for heavy-duty commercial truck and trailer air brake systems. This automatic slack adjuster features clearance-sensing technology that maintains a constant and uniform distance between the brake drum and lining, ensuring optimal braking performance and reducing maintenance requirements.

Key Specifications:

• Spline Size: 1-1/2 inch diameter with 28 splines
• Arm Length: 5-1/2 inches
• Design: Self-setting automatic brake adjuster with gradual adjustment
• Application: Heavy-duty truck and trailer air brake systems

Features and Benefits:

• Clearance-sensing design automatically maintains proper brake adjustment
• Gradual adjustment reduces the risk of over-adjustment during prolonged braking
• Eliminates manual brake adjustment requirements
• Manufactured to OEM performance standards for reliable operation
• Direct replacement for OEM applications

Cross-Reference Part Numbers:

• Haldex: 40020240, 400-20240, 409-20046, 40920046
• Mack: 539640020240
• International: ZZ40020240
• Meritor: M808005

This automatic slack adjuster is engineered with high-quality materials to ensure durability and long service life in demanding heavy-duty applications. The self-setting design improves safety by maintaining consistent brake performance throughout the service interval.