Meritor R803031 Automatic Slack Adjuster Spline Arm - 1.50 10 6

The Meritor R803031 is a genuine automatic slack adjuster designed for heavy-duty commercial vehicle air brake systems. This stroke-sensing automatic slack adjuster features a 1.50-inch camshaft diameter with 10 splines and a 6-inch arm length, providing reliable and consistent brake adjustment for drum brake applications.

Key Features:

• 1.50-inch spline diameter with 10 splines for secure camshaft mounting
• 6-inch arm length (center-to-center measurement)
• Stroke-sensing automatic adjustment technology
• Yellow piston configuration
• Designed for Type 30 brake chamber applications
• Sold without clevis (clevis kit R810009 available separately)
• Compatible with steer and drive axle applications

This genuine Meritor component ensures optimal brake performance and meets OEM specifications for commercial trucks and trailers. The automatic adjustment feature maintains proper brake stroke and reduces maintenance requirements while maximizing brake efficiency and safety.

Cross-Reference: Compatible with Mack 8235-R803031, replaces 8235-R802355, 3947629, and 25175095. OEM reference: A4-3275C1147.