Product Description
Automann 139.1031 - Meritor Type Slack Adjuster 5.5"
The Automann 139.1031 Slack Adjuster is a fleet-standard, Meritor-style automatic slack adjuster designed for 16.5" brake systems on steer, drive, or trailer axles. Featuring a 1-1/2" diameter 10-spline input and 5.5" arm length, this unhanded adjuster includes a clevis kit for easy installation and reliable performance.
Key Features
- Automatic Meritor-type slack adjuster (unhanded)
- 1-1/2" diameter input shaft with 10 splines
- 5.5" arm length for standard axle spacing
- Includes 179.YK5005 clevis kit (5/8"-18 thread)
- Fleet Standard level – balance of cost and performance
Specifications
- Brand: Automann
- Part Number: 139.1031
- UPC: 889626015137
- Slack Type: Automatic – Meritor Type
- Spline Count: 10
- Spline Diameter: 1-1/2"
- Arm Length: 5-1/2"
- Weight: 6.57 lbs
- Shipping Dimensions: 11.25 x 5.875 x 2.375 in
Kit Contents
- (1) Slack Adjuster - 139.1031
- (1) Clevis Kit - 179.YK5005 (5/8"-18 thread)
Applications
Fits steer, drive, and trailer axles with 16.5" drum brakes on Dana/Spicer, Eaton, and Meritor brake systems. Common across vocational and linehaul trucks and trailers.
Cross References
- Euclid: E11398, E11398A
- Meritor: R801041, R803195, A163275H1152S
Additional Info
- Used in common Meritor and Eaton axle brake configurations
- Part of several OEM brake schematics including 4515E, 4524B, 1308TT
- Visit Automann Website
