Haldex 40010156 Automatic Slack Adjuster Arm Spline - 5.5 1.5 28

The Haldex 40010156 is an automatic slack adjuster (ABA) designed for heavy-duty truck and trailer air brake systems. This precision-engineered component automatically maintains optimal brake lining-to-drum clearance as brake linings wear, ensuring consistent stopping performance and reducing maintenance requirements.

Key Specifications:

• Arm Length: 5.5 inches
• Spline Diameter: 1.5 inches (1-1/2")
• Spline Count: 28 splines
• Application: Drive axle (Kenworth with 8 bag air ride applications)
• Mounting Style: Plate and flat stud

Features and Benefits:

• Clearance sensing design maintains optimal lining-to-drum clearance unaffected by deflection or thermal expansion
• Automatic adjustment compensates for brake lining wear over time
• Compatible with all major brand clevises for versatile installation
• Industry-leading warranty backed by Haldex quality standards
• Reduces maintenance costs and improves vehicle safety

Cross References: Haldex 409-10094, 409-10362, Mack 5000452043, Ryder Fleet U55 40010156, Euclid E6919A, Meritor M807003/R806003

Haldex is a globally recognized manufacturer of brake and air suspension systems for heavy-duty commercial vehicles, with manufacturing facilities in 19 countries. Their automatic brake adjusters are the market leader, delivering reliable performance over hundreds of thousands of miles with minimal maintenance requirements.