An apparatus includes a fender base cap bracket shaped to cover a base of a fender of a vehicle; a fender mount defined on the fender base cap bracket; and a mud flap mount defined on the fender base cap bracket. A kit has a fender base cap bracket shaped to cover a base of a fender of a vehicle, the fender base cap bracket having a fender mount defined on the fender base cap bracket, and a mud flap mount defined on the fender base cap bracket; and a mud flap structured to mount to the mud flap mount. A method involves securing a fender base cap bracket to a base of a fender of a vehicle, such that the fender base cap bracket covers the base of the fender, the fender base cap bracket defining a mud flap mount.

A vehicle includes a frame, a floor, a wheel, and a fender box. The fender box is moveable from a first position in which the fender box is located adjacent the wheel to a second position in which the fender box is spaced apart from the wheel.

A mud flap retraction system uses two artificial muscles that extend horizontally toward the mud flaps to an elbow, and then hang down alongside the mud flaps opposite the vehicle tire. Also provided is a source of compressed air or fluid, at least one valve for selectively inflating and deflating, the bladder(s), and an operator control inside the vehicle cabin that quickly and reliably raises (or lowers) the mud flaps at the operator's command. Inflation effectively raises the artificial muscles from a limp position (hanging with the mud flaps) to a stiff raised position (thereby raising the mud flaps rearwardly).

Embodiments of the present disclosure provide a method and apparatus for reducing drag. An exemplary apparatus includes a semitrailer having a main frame extending along a longitudinal axis and a subframe movably connected to the main frame between a first position along the longitudinal axis and a second position along the longitudinal axis. The apparatus further includes an axle assembly attached to the subframe, the axle assembly including an axle, a left wheel set, a right wheel set, and a suspension, and a first recapture device located under the main frame behind and separated from the left wheel set along the longitudinal axis by a given spacing. The apparatus still further includes a second recapture device located under the main frame behind and separated from the right wheel set along the longitudinal axis by a second spacing.

A mudflap assembly includes a bracket assembly that couples to a vehicle frame and a mudflap having a panel. The panel has a first edge coupled to the bracket assembly. The mudflap assembly also includes a lighting element encased in the bracket assembly proximate to the first edge of the mudflap. The lighting element illuminates the panel.

A fender for a vehicle includes a first set of an inner member and an outer member at a first position, and a second set of the inner member and the outer member at a second position that is longitudinally offset from the first position. The fender also includes a fabric disposed between the inner member and the outer member of the first set at a first end and the inner member and the outer member of the second set at a second end. The fabric extends longitudinally between the first set and the second set.

A dump truck includes an engine provided in an engine compartment, and a pair of fenders provided at a rear side of the engine compartment and provided at a distance in the vehicle width direction. The dump truck includes the fender having a fender inclination plate extending so as to incline downward along a rear portion of each front wheel, and a shield portion having a shield inclination plate inclined downward while directing rearward between the pair of fenders and both ends of which in the vehicle width direction are connected to the respective fenders.

A track work vehicle includes a track system including a drive wheel supported by an axle housing that drives a continuous ground-engaging track, a saddle assembly that guides the track about the drive wheel and an undercarriage frame that supports one or more idler wheels that guide the track along a ground surface. The track work vehicle further includes a fender assembly that includes at least one fender coupled to the axle housing to overlap a portion of the track.

An apparatus for a trailer is provided that has a top fairing configured for being mounted to a top surface of the trailer at a location closer to the back of the trailer than the front of the trailer. The trailer has a longitudinal direction, a lateral direction, and a vertical direction. First and second side fairings are also included and are configured for being mounted to respective first and second side surfaces of the trailer. Additionally, first and second trailer skirts are configured for being carried by the trailer and are part of the apparatus. First and second trailer rear skirts are likewise included and are located rearward of the first and second trailer skirts. The combination of components provides aerodynamic benefit to the trailer.

Embodiments provide an aerodynamic fairing system that may comprise a base configured to mount to a vehicle, an arm coupled to the base at a proximate end and extending laterally, and a fairing mounted to the arm having an inboard and an outboard surface. The fairing outboard surface may provide an aerodynamic outer surface to direct flow to an angle to the rear. The arm may a fixed or adjustable length arm. The arm may provide a mounting area for a mud flap such that aerodynamic system may act as a mud flap hanger. Embodiments also provide an adjustable mud flap hanger.