The Motor Wheel 16.5" x 7" Centrifuse Balanced Brake Drum boast lightweight durability being, up to 232 pounds lighter than the competition. Thus, you save on both fuel economy and revenue-producing payload. Its superior safety and patented technology creates an optimal braking surface that resists wear. Successfully avoid heat creaks with permanently bonded steel shell. This heavy duty brake drum replacement is designed, cast, and machined to all applicable industry standards, restoring your semi truck’s brake assembly to its original condition.