A liner system for a bed of a material hauling machine is provided. The liner system includes a first panel having a first surface and a second surface. The second surface includes a plurality of projected sections and defines a recess between each of the plurality of projected sections and a keyway recess. The liner system also includes a second panel having a first lip portion and a second lip portion configured to interconnect with the second and first lip portion of adjacent second panels respectively. The second panel also includes a first protruding portion configured to be received into the recess and a second protruding portion configured to be received into the keyway recess. The liner system further includes a locking panel having a first extension member, a second extension member and one or more fastening means configured to fasten the second panel to the first panel.