Meritor R803059 Automatic Slack Adjuster 6.5 Inch Arm 1.5-28 Spline

The Meritor R803059 is a stroke-sensing automatic slack adjuster designed for heavy-duty commercial vehicle drum brake applications. This precision-engineered component automatically maintains proper brake adjustment, ensuring consistent braking performance and reducing maintenance requirements.

Key Specifications:

• Arm Length: 6.5 inches
• Spline Diameter: 1.5 inches
• Spline Count: 28 teeth
• Chamber Size Compatibility: Type 36
• Application: Drum brake systems
• Piston Color: Green (identification)
• Configuration: Without clevis (clevis sold separately)

Features:

• Stroke-sensing technology for precise automatic adjustment
• Factory lubricated and sealed for extended service life
• Constructed from high-quality ductile iron and steel alloy components
• Exceeds SAE J1462 specifications for performance and durability
• Maintains consistent brake clearance for optimal stopping power

This genuine Meritor slack adjuster replaces OEM part number A8-3275-E-1149 and cross-references with Ayasa 15028. The related clevis kit (sold separately) is Meritor part number R810009. Designed for use with Type 36 brake chambers on heavy-duty trucks, trailers, and commercial vehicles.