8235-S4324710010 | Genuine Wabco® Air Dryer SS1200 Plus

Freightliner (e.g., Cascadia and other Class 8 models), Kenworth (e.g., T680, T880, W900 series), Peterbilt (e.g., 579, 567, 389 series), Mack heavy trucks (various models), Volvo trucks (e.g., VNL, VNR, VNX, VHD series), Navistar / International, Meritor-equipped trucks

• Remove moisture from compressed air

  • Prevents water buildup that can cause corrosion and freezing.

• Protect air brake system

  • Keeps valves, air lines, and brake chambers working reliably.

• Prevent air system freezing

  • Especially important in cold weather where moisture can freeze in lines.

• Filter oil and contaminants

  • Removes compressor oil and debris from the air supply.

• Extend component life

  • Reduces wear and damage to air system parts.

• Maintain proper air pressure

  • Helps the system build and hold air pressure efficiently.

• Excess moisture in air tanks

  • Water drains from tanks more than normal

• Air system freezing

  • Frozen air lines or valves, especially in cold weather

• Slow air pressure build-up

  • Takes longer than normal to reach operating pressure

• Frequent or constant purging

  • Dryer purges too often or doesn’t stop purging

• Air leaks

  • Hissing sounds around the air dryer or purge valve

• Low air pressure warnings

  • Dashboard air pressure light or buzzer activates

• Brake performance issues

  • Brakes feel slow to apply or release

• Oil or debris in air system

  • Contaminants found in air tanks or valves