The Alltrux ATX27770 Air Dryer Cartridge replaces OEM 4324109342 and is designed as a service replacement for heavy-duty truck air dryer and compressed air brake systems. It helps remove moisture, oil vapor, and contaminants from the compressed air supply, supporting reliable brake system performance and consistent operation in fleet and vocational environments.

Air dryer cartridges play a critical role in maintaining clean, dry compressed air by protecting air valves, tanks, and brake components from corrosion, contamination, and freeze-up. As original cartridges become saturated or restricted, air system moisture buildup, reduced braking efficiency, and premature component wear can occur. Replacing worn air dryer cartridges helps restore proper air filtration, improve system reliability, and reduce unplanned service events.

KEY FEATURES
• Designed for heavy-duty truck air dryer and compressed air brake system filtration
• Removes moisture, oil vapor, and contaminants from the compressed air supply
• Helps protect air valves, tanks, and brake components from corrosion and freeze-up
• Durable construction suited for fleet, vocational, and on-highway use
• Brand: All Makes
• Verify compatibility and application requirements before ordering

TECHNICAL SPECIFICATIONS
Alltrux Part Number: ATX27770
OEM Reference: 4324109342
Product Type: Air Dryer Cartridge
Brand: All Makes
System Application: Heavy-Duty Truck Air Brake & Air Dryer System

CROSS REFERENCES

• 4324109342
• R950048

Note: Confirm OEM reference and application details before ordering to ensure proper fit and air dryer system compatibility.