King Pin Boxes, Parts and Accessories.

Acts as a buffer between the tow vehicle and the trailer, minimizing the negative impact of vertical shock and longitudinal chucking.  An excellent buy for your fifth wheel.  Check out our various sizes and shapes of RV 5th Wheel air pin couplers to get you going on your next RV trip.  Get yours today from RVpartscountry.com.  These couplers act as a buffer between the tow vehicle and the trailer, minimizing the negative impact of vertical shock and longitudinal chucking.An excellent buy for your fifth wheel