Meritor R803209 Automatic Slack Adjuster 5.5 Inch 1.50-28 Spline

The Meritor R803209 is a genuine automatic slack adjuster (ASA) designed for heavy-duty commercial vehicle air brake systems. This unhanded design features a 5.50-inch arm length and connects the brake chamber push rod to the S-cam shaft, converting linear motion into rotational force for reliable braking performance.

Key Specifications:

• Arm Length: 5.50 inches
• Slack Spline Diameter: 1.50 inches
• Spline Count: 28
• Sensing Type: Stroke sensing
• Chamber Size Compatibility: Size 24
• Maximum Torque Rating: Exceeds 45 inch-pounds
• Type: Unhanded (universal left/right fitment)

Features and Application:

• Green piston for easy identification
• Designed for drum brake applications
• Machined corner for use on FDS axles with 16.5 x 6 inch cam brakes
• Automatic adjustment maintains proper brake clearance over time
• Stroke sensing technology ensures precise and reliable brake adjustments
• Reduces manual maintenance requirements

This genuine Meritor automatic slack adjuster provides consistent brake performance by automatically maintaining the correct clearance between brake shoes and drum, ensuring optimal safety and reducing the need for manual adjustments.