Ensure your semi is Ready for the Road Ahead with an easy-to-access door, with the Buffers USA 4-Hole Aluminum Swing Door Hinge. Thanks to its simplified design that securely attaches a door to the base of a vehicle, this replacement hinge is able to allow for right or left hand opening. Crafted with premium materials to bear the weight of a swinging door. FleetPride is your First Click in Heavy Duty .