Automann 138.2410 Automatic Slack Adjuster 1-1/4" 24 Spline 5.5" Arm Gunite Type

The Automann 138.2410 is a Gunite-style automatic slack adjuster designed for heavy-duty commercial vehicle air brake systems. This critical brake component automatically maintains proper clearance between brake shoes and brake drums, eliminating the need for manual adjustment and ensuring consistent, safe braking performance.

Key Specifications:

• Spline Count: 24 teeth
• Camshaft Diameter: 1-1/4 inch (1.25")
• Arm Length: 5.5 inches (center-to-center measurement)
• Gunite-style design for welded clevis chamber applications
• Universal configuration suitable for left or right side installation
• Self-adjusting mechanism with sealed internal components
• Forged steel construction for durability and long service life

Cross-Reference Part Numbers: This automatic slack adjuster replaces Sirco SA1138, Gunite AS1138, Gunite AS1154, Batco 05-272, and Euclid E-15022, making it a versatile aftermarket replacement for multiple OEM applications.

Features and Benefits:

• Automatic adjustment maintains optimal brake performance throughout the service life
• Reduces maintenance requirements and downtime
• Heat-treated internal gears for extended durability
• Compatible with all major clevis types used in commercial vehicles
• Manufactured to meet or exceed OEM performance standards
• Greaseable design with zerk fitting for extended service intervals

Automann is a premier aftermarket supplier of heavy-duty truck and trailer parts, offering over 30,000 products manufactured with in-house engineering expertise. All Automann brake components are produced in compliance with OE performance standards to ensure reliable operation and safety in demanding commercial vehicle applications.