Cummins - Crankcase Breather Hose - 1998.5-2002 Dodge RAM 24V Cummins - 3945268

Part # 3945268

The 3945268 is a genuine OEM molded rubber crankcase breather hose. It is used on 1998.5–2002 Dodge Ram trucks with the 5.9L 24-valve Cummins diesel engine, as well as select 3.9L B engines.

• Location: It attaches to the crankcase breather port on the front timing/gear cover.
  
  
• Purpose: It routes crankcase vapors and oil down to the factory catch bottle or ventilation system.
  
  
• Wear: Over time, exposure to engine heat causes this rubber hose to harden, become brittle, and crack, requiring a direct replacement to prevent oil leaks.