| Description | AD-9 Air Dryer 12V For Freightliner, Mack, International, Volvo/White, Meritor/Rockwell |
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| Condition | New |
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| Brand | Bendix® |
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| Part Number | 1093794 |
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Fitment Guide
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Freightliner, Mack, International, Volvo/White, Meritor/Rockwell, and similar vehicles that use Bendix‑style air dryers
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Specifications:
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Heater Voltage
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12 Volt
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Heater Watts
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75 Watt
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Supply
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1/2" NPT
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Delivery
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1/2" NPT
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Control
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1/4" NPT
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A Bendix AD-9 Air Dryer is a heavy-duty truck air system component that removes moisture, oil vapor, and contaminants from compressed air before the air goes into the air brake system.
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Dry the compressed air
- Removes water vapor from air coming from the air compressor.
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Filter contaminants
- Traps oil mist, dirt, and debris before they enter the system.
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Protect air brake components
- Helps prevent corrosion and damage to valves, tanks, and brake chambers.
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Prevent freezing in cold weather
- Stops water from freezing inside air lines and valves.
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Improve brake system reliability
- Keeps air pressure systems operating consistently and safely.
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Reduce maintenance costs
- Less moisture means fewer repairs and less manual draining of air tanks.
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Extend component lifespan
- Air tanks, valves, ABS components, and compressors last longer.
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Signs of Faulty:
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Air leak from purge valve
- Constant hissing from the bottom of the dryer.
- One of the most common signs.
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Frequent or abnormal purging
- Dryer purges too often, weakly, or continuously.
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Slow air pressure build-up
- Truck takes longer than normal to reach operating air pressure.
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Excess moisture in air tanks
- Water drains out of tanks frequently.
- Indicates the desiccant is no longer drying air properly.
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Oil contamination in air system
- Oily residue in tanks or valves.
- Can indicate compressor or dryer failure.
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Frozen air lines or valves (cold weather)
- Moisture bypasses the dryer and freezes in the system.
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Air governor cycling issues
- Compressor cuts in/out improperly due to dryer problems.
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Brake system problems
- Sticky valves, sluggish brakes, or ABS faults caused by contamination.
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Low air pressure warnings
- Dash air pressure alarms or warning lights.
- Compressor overworking or overheating
- Faulty dryer can increase compressor workload.
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Navistar International Corporation, an American company, manufactures a wide range of vehicles, including trucks, buses, and defense vehicles, along with engines. It's the first to be EPA-certified for meeting 2007 standards. They also provide high-quality replacement parts and accessories, ensuring top performance. Navistar is actively developing electric and hybrid solutions for transportation, serving logistics, construction, and public transport sectors.
