Used for disconnecting the fuel line from the fuel rail. Applicable to 2004 and later Nissan Models with a 5/16" Fuel Rail. Exclusive Assenmacher tool for removing these fuel line sizes. 5/16'''' Nissan Fuel Line Disconnect Tool. Product Type: Tools. Use: Line Disconnect. Quanitity: Single. Make: Nissan. Dimensions: Overall Height, Top to Bottom: 0.25 Inches. Overall Width, Side to Side: 0.5 Inches. Overall Depth, Front to Back: 2.01 Inches. Overall Product Weight: 0.05 Pounds.