Automann 139.2833 Automatic Slack Adjuster – 1-1/2" 28 Spline, 5.5" Arm, Meritor Type RevHD engineered to meet OEM specifications

engineered to meet OEM specifications for proper fit and performance

Extended cranking or hard starting

International / Navistar DT-series

Mack Anthem (2018+) with Hendrickson air ride

Automann 139.2833 Automatic Slack Adjuster – 1-1/2" 28 Spline, 5.5" Arm, Meritor Type RevHD engineered to meet OEM specificationsAutomann 139. 2833 is a stroke sensing Meritor Type B automatic slack adjuster with a 5 1 2" arm and 1 1 2" 28 spline input a direct replacement for Meritor R802447 R803049. The yellow piston design holds shoe to drum clearance automatically across service intervals, and the unit ships complete with the 179. YK5005 clevis kit (5 8" 18 thread). Use on Class 68 tractors, vocational trucks, and air braked trailers with Meritor drum brake foundations.