Update your semi with an easy-to-access door, with the Buffers USA Side Door Hinge Assembly that ensures you're Ready for the Road Ahead™. Due 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. Constructed with premium materials to bear the weight of a swinging door. FleetPride is your First Click in Heavy Duty®.