The Alltrux ATX27998 AD-9 Air Dryer Assembly is a heavy-duty aftermarket replacement engineered for commercial truck air brake systems to deliver clean, dry, contaminant-free compressed air. Designed as a direct fit for OEM 065225PG and AD-9 style dryers, the ATX27998 uses advanced desiccant media and an integrated heater to efficiently remove moisture and oil vapor, helping prevent freeze-ups, corrosion, and component failure in air brake control valves and actuators.

Built for demanding fleet and vocational use, this 12 V air dryer assembly features standard inlet, supply, and control port sizing for broad compatibility with North American heavy trucks. Whether for routine replacement, air system overhaul, or preventative maintenance, this AD-9 air dryer helps ensure reliable brake system performance and extended service life under harsh operating conditions.

Always verify port configuration and mount compatibility before installation.

Key Features

• Direct replacement for OEM 065225PG

• Alltrux Part Number: ATX27998

• AD-9 style air dryer assembly

• Removes moisture, vapor, and contaminants from compressed air

• Includes built-in heater for cold weather purge cycles

• Standard 12 V operation for heavy-duty trucks

• Robust construction for fleet-ready performance

Technical Specifications

• Brand: Alltrux
  
• Part Number: ATX27998
  
• OEM Cross Reference: 065225PG
  
• Product Type: Air Dryer Assembly
  
• System: Air Brake / Compressed Air System
  
• Style: AD-9 Air Dryer
  
• Voltage: 12 V
  
• Inlet/Supply Port Size: 1/2″-14 NPT
  
• Control Port Size: 1/4″-18 NPT
  
• Condition: New Aftermarket
  
• Application: Heavy-Duty Truck Air Brake Systems

Cross References

• BENDIX: 065225PG, 065225
  
• ALLTRUX: ATX27998
  
• HALDEX: 109685X, 109685PG
  
• CONTITECH: 65041
  
• AUTOMANN: 170.065225
  
• OTR: OTR065225, OTR109685
  
• RED DOT: RD-5-8220-0P
  
• CUMMINS: 109689
  
• DAYCO: 108069, 108245, 108469
  
• EUCLID: EBN065225X