FL-111807

Automatic Slack Adjuster, 5.5", Haldex Style - 1.5"-28 Spline 400-10211
4.5 Ratings
Part # FL-111807
UPC/GTIN# 601961388253
Availability In Stock (10)
Feature Specification
Type Automatic Slack Adjuster (Haldex Style)
Spline Diameter 1.5 inches (38.1 mm)
Spline Count 28
Arm Length 5.5 inches (139.7 mm)
Arm Hole Diameter 0.5 inches (12.7 mm)
Brake Assembly Size 16.5 inches
Anchor Bracket Style Plate and Flat Stud
Weight Approximately 7-16 lbs (3.2-7.3 kg)
Application Position Trailer Axle
  • Construction: Single-unit automatic slack adjuster featuring self-adjusting mechanism with internal worm gear design for consistent brake shoe-to-drum clearance maintenance.​
  • Material: Heavy-duty construction with corrosion-resistant finish designed for commercial truck brake systems operating under demanding conditions.
  • Design: Haldex-style configuration with 1.5"-28 spline shaft, 5.5-inch arm span, and plate/flat stud anchor bracket mounting system.​
  • Typical Application: Designed for 16.5-inch brake assemblies in trailer axle applications on heavy-duty commercial vehicles including Freightliner, International, Mack, Kenworth, and Peterbilt trucks.​

This is a heavy-duty automatic slack adjuster featuring Haldex-style design with a 1.5-inch diameter 28-spline shaft, 5.5-inch arm length, and 0.5-inch arm hole diameter, specifically engineered for trailer axle applications with 16.5-inch brake assemblies in commercial truck brake systems.​

Cross Reference / Part Interchange

Manufacturer Part Number Notes
Haldex 40020211, 400-10211 OEM
Meritor R801073 (similar spec) 1.5" / 28-Spline / 5.5" ​
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