This SAE Recommended Practice defines minimum requirements for general characteristics, performance, and durability. It is applicable to remanufactured assemblies (factory rebuild) only. This document applies to master cylinder assemblies and components of current established designs but does not cover fluid level sensors, integral proportioning valves, or those master cylinders used in anti-lock brake or traction control systems. These will be covered by other standards.

The general characteristics and test procedure are specified in SAE J1693.

Type-This document applies to remanufactured (factory rebuild) single and dual output master cylinders used in hydraulically operated brake systems highway vehicles. It covers such cylinders where they are employed in passenger car, truck, bus, and like brake systems utilizing motor vehicle brake fluids. Refer to SAE J1154 for the standard applicable to new assemblies from commercial production.