A-FF5790 Filter, Fuel (QTY 12)Twelve New Aftermarket Replacement Spin On Fuel Filters Fleetguard FF5790 (Fits Case of 12) This listing is for a Fits Case of 12 spin on fuel filters replacing Fleetguard FF5790. This secondary fuel filter provides 5 micron filtration to protect diesel engine fuel systems on a wide range of agricultural tractors from Fits New Holland, Fits Case IH, and related equipment. The filter uses a metric M20 x 1. 5 thread and screws onto the engine fuel