FF5612 is a Fleetguard spin-on fuel filter with water separator, widely used across Cummins, Case IH, New Holland, and Volvo equipment. However, available documentation does not confirm it as the standard fuel filter for the MacDon M150 windrower. The MacDon M150 operator's manual specifies a primary fuel filter equipped with a built-in water separator and WIF sensor connection, plus a secondary screw-on filter, both changed every 500 hours.
