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The Mack Air Brake Automatic Slack Adjuster lets a fleet replace adjusters with Mack's own component when a brake job is already underway. Shops relining brakes often swap adjusters at the same time, since the labor to reach them is already done. Pairing the Mack 23190003 with fresh linings starts the wheel end with new adjustment hardware. Fleet managers spend less total shop time on brakes when the whole assembly is refreshed together.
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