To inhibit fuel splashes occurring in an inlet pipe from flying to the exterior.

A fuel inlet includes: an inlet pipe 2 for guiding a fuel to a fuel tank; a breather tube 3 for guiding vapor in the fuel tank to the tip side of the inlet pipe 2; and a retainer 5 provided at a tip portion of the inlet pipe 2. In the retainer 5, a screw 514 for attaching/detaching a filler cap, a regulation hole 523 for regulating a tip position of an oil feed gun, and an air bleeding hole 53 for passing the vapor supplied from the breather tube 3 to the tip side of the inlet pipe 2 are formed. The retainer 5 includes a first component 51 and a second component 52. The air bleeding hole 53 is a space formed between the first component 51 and the second component 52.