The Alltrux ATX11844 Air Dryer Filter Cartridge replaces OEM 109493 and is designed as a direct replacement desiccant cartridge for Bendix AD-IP air dryer systems used in heavy-duty trucks. This standard spin-on cartridge removes moisture, oil vapor, and contaminants from compressed air before it enters the brake system, helping prevent corrosion, valve damage, and freeze-related air system failures.

Air dryer cartridges play a critical role in maintaining clean, dry air throughout the air brake system. By filtering dirt and absorbing moisture, the desiccant media protects sensitive components such as relay valves, ABS modulators, and brake chambers from premature wear and operational issues in harsh commercial environments.

Engineered as a new aftermarket replacement (no core required), this cartridge features a 1 1/4-7 UNC-2B thread and is built to perform in demanding fleet applications with operating pressures up to 150 PSI and cold-weather performance down to approximately -40°F. It is intended for standard AD-IP dryer systems and should not be substituted for coalescing or PuraGuard-style cartridges where specified. Always verify dryer model and cartridge type before installation to ensure proper system compatibility.

Key Features

Direct replacement for OEM 109493 air dryer cartridge
Alltrux Part Number: ATX11844
Standard spin-on desiccant cartridge for Bendix AD-IP systems
Removes moisture, oil vapor, and contaminants from compressed air
Protects air brake valves, chambers, and control components
New aftermarket unit — no core return required

Technical Specifications

Brand: Alltrux
Part Number: ATX11844
OEM Cross References: 109493, 109493X, 065624, R109493
Product Type: Air Dryer Desiccant Filter Cartridge
System: Air Brake / Compressed Air Dryer System
Dryer Compatibility: Bendix AD-IP
Thread Size: 1 1/4-7 UNC-2B
Operating Pressure: Up to ~150 PSI
Temperature Rating: Approximately -40°F minimum
Condition: New Aftermarket (No Core Required)
Application: Heavy-Duty Truck Air Brake Dryer Systems

Cross References

OEM: 109493, 109493X, 065624, R109493
ALLTRUX: ATX11844