For Sale is a good used  Genuine McCulloch fuel line.  This goes inside the fuel tank.

This fits:


McCulloch 550, super 550
McCulloch Super 250, 250, 200
McCulloch 300 series, 380
McCulloch 1-40, 1-41, 1-42, 1-43, 1-45, 1-46
McCulloch 1-50, 1-51, 1-52, 1-53

If you have any question of application please ask.