A mud flap for a wheeled vehicle includes an upper mounting portion and an extended protection portion. The extended protection portion includes at least two areas with slotted air flow openings. An upper slot area includes rows of elongated slots with the slots arranged in columns in each row. A lower slot area includes rows of elongated slots with the slots arranged in columns in each row. The slots in the upper slot area have heights that are greater than the heights of slots in the lower slot area. In some embodiments, a middle slot area is positioned between the upper slot area and the lower slot area. The slots in the middle slot area have different heights in different rows. In some embodiments, at least a portion of the slots in the upper slot area is replaced with diagonal mounting features.

A mud flap assembly has a bracket hanger and a mud flap. The bracket hanger has a body extending from a first end and a second end. The first end of the bracket hanger has a shape complementary to a bore of a receiver's maintube that extends along a width of the vehicle. The mud flap is connected to and extends downward from the bracket hanger. A coupler has a first end and a coupler bore opposite the first end. The first end of the coupler is complementary to an end of a maintube of a second vehicle. The coupler bore is complementary to the first end of the bracket hanger.

A mud flap mounting assembly and system is disclosed. A vehicle body and mud flap are provided as part of the overall system. Advantageously, a toollessly-operated mud flap clamp assembly is provided. The mud flap clamp assembly includes a plurality of mud flap clamp units installed on the vehicle body. Each of the plurality of mud flap clamp units includes a flap clamp bracket, a flap pressure plate, and a flap clamp. Each flap clamp bracket selectively engages a first side of the mud flap, and each flap pressure plate selectively engages a second side of the mud flap. Each flap clamp is operable to a first position such that a clamping force is applied to each respective flap pressure plate and such that the mud flap is frictionally engaged with and retained by each respective flap clamp bracket and each respective flap pressure bracket.

A work vehicle includes a vehicle body, and a mud guard device attached to the vehicle body. The mud guard device has a cylindrical support pipe fixed to the vehicle body, a support shaft supported by being inserted into the support pipe, and a mud guard supported by the support shaft. Alternatively, the mud guard device has a support shaft fixed to the vehicle body, a cylindrical support pipe supported by the support shaft being inserted in the cylindrical support pipe, and a mud guard supported by the support pipe.

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.

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.

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.

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.

Systems and methods for controlling movement of a mudflap hanger arm, to reliably return from a deflected position to a resting position, while providing improved manufacturability and reduced corrosion and wear through the use of guidance surfaces on a mounting plate and a frame seat that form the interface between the hanger arm and a vehicle frame. When the hanger arm pivots about an axis on one side of the mounting plate and frame seat, guidance surfaces on the opposite side are in contact or near-contact, preventing the mounting plate and frame seat from being laterally displaced or rotated with respect to each other. The improved mounting plate and frame seat can reduce or eliminate manufacturing operations such as welding, coating, etc., reducing the cost of the apparatus, while enhancing manufacturability and operation.

Embodiments include a mud flap having a barrier section configured to intercept and deflect matter discharged from the tire when rotating during vehicle operation. The barrier section including a plurality of horizontal louvers, each horizontal louver forming an elongate member having a length extending primarily in a direction of the mud flap width, where the plurality of horizontal louvers are spaced apart in the direction of the mud flap height in the form of an array, where the plurality of horizontal louvers are configured to intercept and deflect matter of a minimum size traveling along any linear trajectory path from the outer circumference of the tire/wheel assembly towards the front side of the mud flap while substantially maximizing the spacing between adjacent louvers to minimize aerodynamic drag. Other embodiments provide a method of using the mud flap.