VEHICLE COMPATIBILTIY:5″ wrench works on any diesel engine with fuel flow rates up to 60 gph, Class 4, 5, & 6 trucks, pickup trucks, refrigeration units and some Biodiesel applications.PRODUCT INFORMATION：Material: MetalColor: BlackPERFORMANCE:Direct replace the old or broken oil fuel filter collar wrench.Specifically designed to assist in the removal and replacement of fuel filter collar and vent cap, ensuring symmetrical tightening during installation and also loosening stubborn collar and vent cap.NOTICE：Due to manual measurement, the size deviation is about 1-2 cm.