Lisle 38410 DEF And Fuel Line Disconnect Set, 6 Pieces, 1/4" Square Drive, for DEF, Breather, Coolant, and Fuel Line Connectors. MPN: 38410. Lisle LI38410 is a 6 piece DEF and fuel line disconnect set designed to access hard-to-reach DEF, breather line, coolant line, and fuel line connectors found on most cars, trucks, and heavy-duty vehicles.
