Overall Height133 mm (5.236 inch) Largest OD 108.97 mm (4.29 inch) Gasket OD 101.35 mm (3.99 inch) Thread Diameter 1 mm (.039 inch) Thread Pitch 14 mm (.551 inch) Thread Class: 1B Thread Form: Unified National Free Water Separation0.0 Fit type: Universal Fit FF5301 Fleetguard Fuel Filter, Replaces Baldwin BF1224, Donaldson P559125, Luber Finer LFF1225, Wix 533404. Modern fuel injection systems require fuel be free of both particulate and water contamination. Fleetguard spin-on fuel filters keep fuel clean and engines running at maximum efficiency.