Heavy Duty Trailer Friction Blocks

Developed for Class 7–8 interstate tractors, regional distribution chassis, and heavy-duty trailers across North America, these Brake Linings FMSI 4718Q offer a high-performance foundation reline solution. Tailored specifically for 16.5" x 6" Q-Plus profile foundation brake shoes, this low-metallic non-asbestos friction block set delivers responsive air-brake deceleration, exceptional high-temperature fade resistance, and uniform drum contact across severe-duty line-haul lanes.

Engineered for Class 7–8 long-haul tractors, intermodal dry vans, vocational dump chassis, and heavy-duty trailers across North America, these 4719 Brake Linings deliver a high-endurance foundation reline solution. Specially configured to fit standard 4719 profile foundation brake shoes on 16.5" x 6" drum brake assemblies, this friction block set provides balanced braking torque, superior resistance to high-temperature fade, and uniform drum wear across demanding cross-country transport routes.

Engineered for Class 7–8 line-haul tractors, intermodal container chassis, refrigerated haulers, and severe-duty vocational trailers across North America, these 4702 Brake Linings provide a dependable foundation friction reline solution. Specially configured to fit standard 4702 profile foundation brake shoes on 15" x 4" / 15" x 5" and standard foundation drum brake assemblies, this friction block set delivers responsive stopping torque, exceptional heat fade resistance, and uniform drum wear across demanding highway freight lanes.

Engineered for Class 7–8 line-haul tractors, regional distribution haulers, intermodal chassis, and severe-duty vocational trailers across North America, these 4516Q Brake Linings deliver a dependable foundation friction reline solution. Specially configured to fit standard 4516Q profile foundation brake shoes on 16.5" x 7" Q-Plus drum brake assemblies, this friction block set provides smooth pedal response, outstanding resistance to high-temperature fade, and uniform drum wear across demanding highway freight lanes.

Designed for Class 7–8 line-haul tractors, intermodal container chassis, refrigerated reefers, and severe-duty vocational trailers across North America, these 4515 Brake Linings deliver a high-endurance foundation reline solution. Tailored specifically to fit standard 4515 profile foundation brake shoes on 16.5" x 7" drum brake assemblies, this friction block set provides smooth pedal modulation, exceptional resistance to thermal fade, and balanced drum wear throughout demanding cross-country transport corridors.

Engineered for Class 7–8 line-haul tractors, intermodal container chassis, refrigerated reefers, and severe-duty vocational trailers across North America, these 1443 Brake Linings provide a dependable foundation friction reline solution. Specially configured to fit standard 1443 profile foundation brake shoes on 16.5" x 7" drum brake assemblies, this friction block set delivers consistent stopping torque, outstanding high-temperature fade resistance, and uniform drum wear across demanding cross-country transport lanes.