The OTR Heavy Haul Pro Brake Shoe Kit ensures Expertise Built In™, as the perfect fit for stop-and-go urban driving. Its proven durability has shown to deliver strong brake power for a range of heavy duty vehicles, not only meeting, but also exceeding, all FMVSS121 brake standard requirements for 23K pound axles (165 AL Factor). With deluxe braking power, this semi truck and trailer part can be used on a variety of heavy duty vehicles, such as single axle tractors and trailers, car haulers, container chassis, double trailers, flat bed trailers, logging trailers and tandem and tri-axle tractor and trailers and more. It is the ideal match for both on- and off-highway driving. The brake shoe replacement kit also includes extended wear life and minimal drum deterioration, which significantly minimizes downtime and maintenance. FleetPride is your First Click in Heavy Duty®.