This rear upper brake wheel cylinder is specifically designed for the Dodge S600 school bus manufactured between 1963 and 1971. Engineered for heavy-duty industrial and commercial vehicle applications, this component ensures reliable brake function under demanding conditions. Constructed to meet or exceed OEM specifications, it provides optimal hydraulic pressure transfer to the brake shoes, promoting consistent stopping power and safety. Its robust design is suitable for fleet operators seeking durable, long-lasting replacement parts for their heavy-duty vehicles.