This fuel filter is a genuine OEM Craftsman Marine part suitable for several Craftsman Marine marine diesel engines. The filter removes contaminants and particles from the fuel before it reaches the injection system, helping protect injectors and fuel pumps. Regular replacement of the fuel filter helps maintain reliable engine performance and prevents damage to the fuel system. This is a genuine Craftsman OEM product . Craftsman OEM Part Number 20000017 Compatible Craftsman Engines CM2.16 CM3.27 CM4.42 CM4.65 Also commonly used on: CM4.52 CM4.80 Questions about compatibility or Craftsman engine parts? Our marine specialists are happy to help.