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The Mack Air Brake Dryer is your best defense against frozen brake lines and rusted valves. While basic dryers struggle in high-humidity or freezing weather, this Mack unit uses a high-grade desiccant that pulls more moisture and oil out of the air stream before it can reach your tanks. It’s built to handle the high-output compressors found on MP-series engines without getting overwhelmed. Installing this Mack 85143198 dryer means fewer "moisture in system" dash lights and a lot less time spent draining sludge out of your primary reservoir.
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