Stallion ST-117 High Pressure Fuel Oil Line Quick-Release Coupling Disconnect Tool - 303-755 192-5092 ZTSE4581 Alternative
Applications: 6.0L, 6.4L Ford Diesel, Caterpillar 3126B #10 fitting, VT275, VT365 Navistar International #8 & 10 fittings
If you're working on a 7.3L you need ST-127 or ST-116. If you're working on CAT 3126B #6 fitting use 180-0186