Composite fuel pump cartridge and fuel tank assembly

A fuel tank assembly comprising a fuel tank having a plurality of walls spaced apart by a floor, a flange having a top portion and a bottom portion, and extending downward from one of the plurality of walls, is provided. The fuel tank assembly further includes a housing, a crimp ring and a lip, wherein the crimp ring is fitted over the lip for engaging the flange and the housing. A fuel pump is housed within the housing, wherein the housing is arranged to fixedly position at least one inlet connected to the fuel pump at or in close proximity to the floor of the fuel tank. A fuel reservoir extends away from the floor having at least one passage formed therein, the fuel reservoir being positioned within the fuel tank so as to create an accumulated area of the fuel tank surrounding the at least one inlet, wherein fuel enters the accumulated area through the at least one passage for receipt by the at least one inlet.