Craftsman 618-04466 Lawn Tractor Breather Tube Assembly

The Craftsman 618-04466 Lawn Tractor Breather Tube Assembly is a ventilation part that routes crankcase gases from the engine to the air intake system, assisting to maintain proper airflow and pressure balance during operation. It operates by directing pressure build-up and oil fumes through a molded channel that ensures internal airflow balance while operating. This is mounted between the motor and air cleaner housing to provide controlled gas flow in the system. It is placed in the upper part of the cylinder head, near the engine's ventilation lines. This configuration allows for more stable mechanical operation and less variation of internal pressure during use and supplies more stable ventilation flow.