Product Description
Cummins 3683670 crankcase breather grommet seal for compatible ISX, ISX15, ISM, and select QSX15 diesel engines. Designed to seal the crankcase breather tube connection, helping prevent oil leakage and maintain proper crankcase ventilation.
This grommet provides a secure sealing surface where the breather tube connects to the engine valve cover or associated crankcase ventilation components.
Verify engine model, serial number, breather tube configuration, and original equipment part number before ordering.
